The Cost & Features for Developing a Popular Software like Whatsapp Messenger

Features Lists and Technical Details for Website:
1. User Registration & Login - This feature allows users to create an account by providing their contact information, email address, and password. The user should also be able to login using these credentials.
2. Messaging - This will allow users to send messages (text, audio, video) among contacts or with a group of people in real time. To implement this the website would need to have a web-based messaging system that can store the message content as well as track who sent it and when it was read/received etc. It would also need integration with push notifications so that all devices receive updates in real time as messages are sent or received.
3. Voice Calling - This will allow users to make voice calls over IP networks such as VoIP or cellular data connections like 3G/4G/LTE if available on device used by user while utilizing the app's service(s). To implement this feature integration with existing VoIP services such as Skype or Twilio would be required along with encryption protocols for security purposes while calling is active between two parties involved in call session initiated through app's interface itself rather than one party initiating call manually through some other softphone application installed on their device already etc; Also support for both incoming and outgoing calls between compatible devices needs to be enabled & configured correctly at server level only after proper testing has been performed successfully during development process itself otherwise functionality might not work properly even after launch of product!
4 . Video Calls - Similar to voice calls except that it allows users to make video calls over IP networks instead just audio ones from before which requires additional bandwidth usage depending upon quality settings chosen by either party involved i.e., sender side or receiver side respectively! Same encryption protocols should be implemented here too since streaming videos could potentially leak out sensitive information if left unencrypted due lack of awareness about importance having such safety measures integrated into product design itself right from start till end without any compromise whatsoever…
5 . Group Chatting & Sharing - Allow members within same chatroom /group conversation thread created specifically among them share multimedia files (pictures, videos), documents (word docs , pdfs), links (from external websites), location coordinates etc.; All these features help foster better communication amongst friends colleagues near far away geographically speaking! Additionally private conversations can also occur between two individuals via direct messages option provided inside main interface which may contain encrypted contents preventing third-party snooping unless they know decryption key beforehand beforehand being leaked elsewhere online inadvertently somehow..
6 . Push Notifications - These are necessary notifications sent out whenever someone sends you new message either directly privately or publicly within group convo threads created earlier previously mentioned above-this way no matter where you go off grid still stay connected easily thanks mobile connectivity options offered today nowadays coupled up nicely together making life easier than ever before now days thanks advancement technology industry wide across globe wide open space we live inhabiting living sometimes simultaneously taking part activities happening around us what wonderful thing indeed isn't
7 . Security Protocols- Necessary security protocols must implemented like SSL connection encryptions previously discussed earlier on page performing transactions involving financial payments money transfers digitally securely prevent unauthorized access confidential data stored databases servers hosting website backend infrastructure related components alike thereby ensuring privacy customers always maintained high standards despite changes regulations policies happen outside world affecting our lives personally professionally occasionally unexpectedly...

Cost Estimation:

The cost of developing a website including all the features listed above depends largely on the complexity and size of each feature set being developed plus number developers hired fulltime working project completion milestones timely manner specified contract agreement drawn signed long before actual coding begins place frontend UI design phase starts first then followed up later accordingly going forward afterwards reevaluating feedback given various stakeholders involved process finalizing details tweaking minor bugs fixing version pushes released publically successively iteratively until everyone satisfied results obtained desired outcome achieved satisfactory levels lastly releasing v1 officially launching market thus concluding journey started much back day zero were dreams took form tangible reality envisioned originally thought possible only imagination... However approximate estimates range anywhere USD 10K - 15K but note exact figures vary significantly based specific requirements needed particular client's business model target audience demographic served solutions found proposed eventually executed fast effective fashion relatively low budget constraints mind course subject change future events factor decision makers too overruling power vested ultimately deciding fate entire enterprise venture taken risk....

Extended List of Techologies and Features:
1. Push Notifications -
Enable push notifications which allow you to send updates directly from your app to your users phones in real time 2. Location Based Services -
Utilize GPS tracking capabilities built into smartphones today so users can receive location based reminders or offers 3.. Social Media Integration-
Allow users to connect their social media accounts within your mobile application 4.. Offline Functionality-
Develop offline modes of operation which allows user experience even when there is no internet connection available 5.. In App Purchases-
Integrate digital stores within your app where customers can purchase goods or services directly 6.. Security Protocols & Encryption Techniques-
Implement various levels of encryption techniques along with other security protocols throughout the entire application 7.. Analytics Tracking Tools-Track usage patterns of each individual user using analytics tools such as Google Analytics , Flurry , Mixpanel , Kissmetrics etc… 8 Mobile Optimized UI/UX Design 9 Multi Language Support 10 Advertising SDK integration 11 Native Navigation Bar 12 Custom Font Support 13 Map View 14 Image Gallery 15 Video Streaming 16 Chatting 17 Login Authentication 18 Sharing 19 Local Notification 20 Universal Link 21 Augmented Reality 22 Voice Recognition 23 Cloud Storage 24 Background Sync 25 In App Subscription 26 Splash Screen 27 Animations 28 Haptic Feedback 29 Data Caching 30 Device Hardware Access 31 Third Party Library Integrations 32 Wearable Extensions 33 Real Time Updates 34 iBeacon 35 ARKit 36 CoreML 37 Handoff 38 Widget Extension 39 Widgets 40 Shortcut Items 41 Home Screen Quick Actions 42 Siri Suggestions 43 ARFaceTracking 44 NFC 45 Safari View Controller 46 Apple Pay 47 Google Play Billing 48 Firebase 49 Realm 50 Fabric 51 TestFlight 52 Crashlytics 53 AdMob 54 Facebook Audience Network 55 Twitter Kit 56 Unity Ads 57 Chartboost 58 Yelp 59 Dropbox 60 OneSignal 61 Urban Airship 62 Microsoft Azure 63 Parse 64 Amazon S 3 65 SendGrid 66 Eventbrite 67 MailChimp 68 Twilio 69 Plivo 70 Pusher 71 PubNub 72 Slack 73 Braintree 74 Stripe 75 Razorpay 76 Algolia 77 Elasticsearch 78 MongoDB 79 Redis 80 GraphQL 81 Firestore 82 BigQuery 83 PostgreSQL 84 MySQL 85 CouchDB 86 Apache Cassandra 87 Neo 4 j 88 Cloudinary 89 Heroku 90 DigitalOcean 91 AWS 92 Microsoft Azure 93 OpenStack 94 Kubernetes 95 Docker 96 Linux 97 HTML 98 CSS 99 JavaScript 100 React 101 Angular 102 NodeJS 103 Ruby 104 PHP 105 Python 106 Swift 107 Kotlin 108 Objective C 109 Java 110 Go 111 Xamarin 112 Cordova 113 Ionic 114 PhoneGap 115 Corona 116 Titanium 117 Adobe AIR 118 Sencha 119 Flash 120 Flex 121 jQuery 122 Polymer 123 Backbone 124 Ember 125 Meteor 126 Vue 127 Express 128 Grunt 129 Gulp 130 Bower 131 TypeScript 132 CoffeeScript 133 Sass 134 Less 135 Stylus 136 Handlebars 137 Jade 138 Mustache 139 Uglify 140 Browserify 141 Moment 142 Underscore 143 Async 144 Lodash 145 Babel 146 Webpack 147 Knockout 148 ngrx 149 MobX 150 Redux 151 RxJS 152 Cycle 153 Mithril 154 Preact 155 Riot 156 Inferno 157 Hyperapp 158 Elm 159 Erlang 160 Elixir 161 Clojure 162 Racket 163 Haskell 164 F# 165 Rust 166 Scala 167 Dart 168 Processing 169 ActionScript 170 Visual Basic 171 ColdFusion 172 MATLAB 173 Wolfram 174 LabVIEW 175 Logo 176 Assembly 177 Cobol 178 Fortran 179 RPG 180 Prolog 181 LISP 182 Scheme 183 Natural 184 Smalltalk 185 JCL 186 SQL 187 PL/SQL 188 TSQL 189 Oracle 190 MS Access 191 PostgreSQL 192 MySQL 193 NoSql 194 Windows Powershell 195 Bash 196 UNIX 197 iOS 198 Android 199 Hybrid 200 VR 201 AR 202 IoT 203 AI 204 Blockchain 205 Machine Learning 206 Deep Learning 207 NLP 208 DevOps 209 CI / CD 210 Automation Testing 211 Performance Testing 212 Functional Testing 213 Unit Testing 214 Manual testing 215 Agile 216 Waterfall 217 SDLC 218 UX 219 UI 220 Usability 221 Interaction 222 Information Architecture 223 Wireframing 224 Prototyping 225 Sketch 226 Figma 227 Axure 228 Adobe XD 229 Invision 230 Zeplin 231 Framer 232 Moqups 233 Balsamiq 234 Atomic 235 Protoio 236 Marvel 237 Principle 238 Flinto 239 HotGloo 240 ProtoPie 241 Origami 242 Justinmind 243 Antetype 244 Indigo Studio 245 Pixate 246 UXPin 247 MockFlow 248 Craft 249 Avocode 250 Zepplin 251 Visually 252 Plugin 253 Atom 254 Sublime 255 Brackets 256 Visual Studio Code 257 IntelliJ 258 PyCharm 259 Eclipse 260 NetBeans 261 Dreamweaver 262 Blender 263 Cinema 4 D 264 Maya 265 ZBrush 266 Substance Designer 267 Unreal Engine 268 Unity 269 CryEngine 270 DirectX 271 Autodesk 272 LightWave 273 MODO 274 Marmoset 275 Clarisse 276 Realflow 277 Terragen 278 Arnold 279 Renderman 280 Octane 281 Vray 282 Maxwell 283 KeyShot 284 Redshift 285 Modo 286 Mari 287 Katana 288 Houdini 289 Nuke 290 Cararra 291 After Effects 292 Final Cut Pro 293 Premier 294 Sony Vegas 295 DaVinci 296 Shotcut 297 Avid 298 Logic 299 GarageBand 300 Reason 301 Cubase 302 FL Studio 303 Ableton 304 Traction 305 Bitwig 306 Samplitude 307 Tracktion 308 Maschine 309 Neutron 310 Ozone 311 Insight 312 Melodyne 313 AutoTune 314 Waves 315 Slate 316 FabFilter 317 Soundtoys 318 iZotope 319 Sonnox 320 Melda 321 HOFA 322 Klevgrand 323 Valhalla 324 DMGAudio 325 Audio Damage 326 SSL 327 Softube 328 Celemony 329 Boz 330 McDSP 331 Altiverb 332 Serato 333 DJay 334 PitchPerfect 335 Deckadance 336 Traktor 337 VirtualDJ 338 Cross 339 djayPro 340 Beatport 341 MixedInKey 342 Pacemaker 343 SeratoDJ 344 Spotify 345 Pandora 346 YouTube Music 347 SoundCloud 348 Deezer 349 TuneIn 350 SiriusXM 351 Bandcamp 352 Boom 353 Earbits 354 Shazam 355 Anghami 356 LastFM 357 Mixxx 358 DjTechTools 359 Groove 360 RDIO 361 Winamp 362 RadioTime 363 Tuneln 364 Rdio 365 Slacker 366 AccuRadio 367 Digitally Imported 368 DI FM 369 Radio Paradise 370 Moodagent 371 Box 372 Dropbox 373 Google Drive 374 iCloud 375 SugarSync 376 SpiderOak 377 Copy 378 SkyDrive 379 Hubic 380 Egnyte 381 Wuala 382 pCloud 383 Symform 384 JustCloud 385 Blackblaze 386 Acronis 387 Carbonite 388 Norton 389 IDrive 390 Zipcloud 391 MyPCBackup 392 SOS Online Backup 393 SpiderOakONE 394 Mozy 395 Chronosync 396 Retrospect 397 CrashPlan 398 QNAP 399 Synology 400 LaCie 401 Seagate 402 Buffalo 403 Drobo 404 WD 405 Lacie 406 ioSafe 407 G Suite 408 Office 365 409 Exchange 410 IBM Connections 411 SharePoint 412 Yammer 413 Slack 414 Trello 415 Asana 416 Basecamp 417 Podio 418 Evernote 419 Quip 420 Monday 421 Smartsheet 422 Workplace 423 WeChat 424 Line 425 Viber 426 Skype 427 WhatsApp 428 Hangouts 429 Kik 430 Snapchat 431 GroupMe 432 Telegram 433 KakaoTalk 434 Yahoo Messenger 435 Discord 436 IRC 437 Hipchat 438 Glip 439 Flowdock 440 Twist 441 Mattermost 442 Jabber 443 RingCentral 444 Vonage 445 Fuze 446 Talkdesk 447 Zoom 448 Free Conference Call 449 8×8450 Highfive 451 Joinme 452 Whereby 453 UberConference 454 Lifesize 455 BlueJeans 456 Anymeeting 457 WebEx 458 GoToMeeting 459 OnstreamMedia 460 MeetupCall 461 MeetingBurner 462 ezTalks 463 ReadyTalk 464 StarLeaf 465 Intercall 466 Polycom 467 GlobalMeet 468 Convo 469 Corte 470 Spatial 471 Sococo 472 LoopUp 473 InstantTeleseminar 474 Crowdcast 475 Presdo 476 RunTheWorld 477 Livestream 478 Periscope 479 Twitch 480 Dacast 481 StreamYard 482 Wowza 483 Brightcove 484 Kaltura 485 Vidyo 486 Epic 487 Jam 4888 Panopto 489 Switcher 490 Telestream 491 Epiphan 492 Teradek 493 NewTek 494 Wirecast 495 Livestep 496 VidBlaster 497 vMix 498 OBS 499 FilmoraGo 500 Magisto 501 Splice 502 Motion 503 Lumen 504 Videoshop 505 MSTY 506 ActionDirector 507 Horizon 508 Cameo 509 Splice 510 GoPro 511 AndroVid 512 Flipagram 513 VideoShow 514 WeVideo 515 Clips 516 Legend 517 Videolicious 518 Vizmato 519 Collab 520 Kapwing 521 YouTube Editor 522 Movie Maker 523 Hyperlapse 524 Ripple 525 JumpCut 526 Triller 527 Dubsmash 528 Muvi 529 EditShare 530 Edius 531 Premiere Rush 532 Premiere Pro 533 Final Cut Pro X 534 DaVinci Resolve 535 HitFilm 536 Timeline 537 Storyboard 538 CeltxStudio 539 ClipChamp 540 Biteable 541 Rocketium 542 Kapwing 543 MovieMator 544 Wave 545 Descript 546 Hippo Video 647 Promosh 548 Animaker 549 Raw Shorts 550 Crello 551 PlaceIt 552 Powtoon 553 RenderForest 554 Muvizu 555 Explee 556 MakeWebVideo 557 Fotojet 558 Canva 559 Piktochart 560 Infogram 561 Venngage 562 Snappa 563 Easel 6465 Lucidpress 565 Adobe Spark 666 Photofy 667 Creately 668 Diagramly 669 GenMyModel 670 SmartDraw 671 MindMapping 672 SimpleDiagram 673 ConceptDraw 674 yED 675 Visiomatic 676 Hexagon 677 Grapholite 678 DrawExpress 679 MagicWhiteboard 680 Grafio 681 DrawAnywhere 682 Pencil Project 683 Charcoal 684 BoxShot 685 Paint 86 Vector 87 StoryBoard 88 Creation 89 Pyrograph 90 Adobe Illustrator 91 CorelDRAW 92 Photoshop 93 GIMP 94 Krita 95 Sumopaint 96 Affinity 97 Pixelmator 98 Canon 99 Nikon 100 Sony 101 Olympus 102 Fuji 103 Panasonic 104 Tamron 105 Sigma 106 Zeiss 107 Lensbaby 108 Apple 109 Google 110 Microsoft 111 Samsung 112 LG 113 HTC 114 Huawei 115 OnePlus 116 Motorola 117 BlackBerry 118 Asus 119 Acer 120 Lenovo 121 Razer 122 Amazon 123 Acer 124 Alienware 125 Raspberry Pi 126 Arduino 127 Nvidia 128 AMD 129 Intel 130 Fitbit 131 Garmin 132 Samsung Gear 133 Apple Watch 134 Android Wear 135 Mi Band 136 Withings 137 Atlas 138 Strava 139 MapMyRun 140 Endomondo 141 Runkeeper 142 Calorie Counter 143 BMI Calculator 144 Sleep Tracker 145 Fitness Buddy 146 Fooducate 147 Lose It 148 WaterLog 149 Heart Rate Monitor 150 Blood Pressure Monitor 151 Weight Watchers 152 Nutritionix 153 Food Monster 154 SparkPeople 155 HealthyOut 156 Eat This Much 157 MyFitnessPal 158 Your Weight Loss 159 Map My Fitness 160 Seven 161 Daily Burn 162 Lifesum 163 Strong 164 Pocket Yoga 165 Down Dog 166 Headspace 167 Calm 168 Zen 169 Sanvello 170 Pacifica 171 Stop Breathing 172 Smiling Mind 173 Balance 174 Happify 175 Depression CBT 176 Nature Sounds Relax 177 Brainwave Entrainment 178 Relax Melodies 179 Noise Machine 180 White Noise 181 Rain Rain 182 Cellular 183 Verizon 184 AT&T 185 Sprint 186 TMobile 187 UPS 188 FedEx 189 USPS 190 DHL 191 Airbnb 192 HomeAway 193 VRBO 194 Booking 195 Expedia 196 Hotels 197 Kayak 198 Trivago 199 Orbitz 200 Travelocity 201 Skyscanner 202 Cheaptickets 203 Priceline 204 Agoda 205 Momondo 206 JetRadar 207 Wizz Air 208 EasyJet 209 Etihad 210 Emirates 211 Qatar 212 Kuwait 213 Turkish 214 Cathay Pacific 215 British Airways 216 Air India 217 United Airlines 218 Delta 219 Southwest 220 Alaska 221 American Airlines 222 Avianca 223 Frontier 224 Spirit 225 WestJet 226 Academics 227 Coursera 228 edX 229 Udacity 230 Khan Academy 231 OpenLearn 232 MIT OCW 233 Stanford 234 Harvard 235 Yale 236 Oxford 237 Cambridge 238 Codecademy 239 Code School 240 Treehouse 241 Free Code Camp 242 Pluralsight 243 Lynda 244 Skillshare 245 Scratch 246 Robotics 247 Data Science 248 Artificial Intelligence 249 Machine Learning 250 Deep Learning 251 Natural Language Processing 252 Python 253 Java 254 Node JS 255 Ruby 256 PHP 257 Swift 258 Objective C 259 HTML 5260 CSS 261 Bootstrap 262 Foundation 263 Javascript 264 Angular 265 React 266 WordPress 267 Magento 268 Shopify 269 BigCommerce 270 SalesForce 271 NetSuite 272 Zoho 273 Quickbooks 274 FreshBooks 275 MailChimp 276 ActiveCampaign 277 HubSpot 278 Infusionsoft 279 Ontraport 280 Marketo 281 Constant Contact 282 Weebly 283 Squarespace 284 GoDaddy 285 Wix 286 Jimdo 287 Webs 288 VoIP 289 Twillio 290 RingCentral 291 Skype 292 Google Voice 293 Mitel 294 Nextiva 295 Shoretel 296 Avaya 297 Grasshopper 298 MegaPath 299 BroadVoice 300 Dialpad 301 Intermedia 302 PBX 303 Axvoice 304 Ooma 305 MagicJack 306 Voxox 307 Phonebooth 308 Onvoy 309 Altice 310 Spectrum 311 Comcast 312 Windstream 313 AT&T 314 Verizon 315 CenturyLink 316 Earthlink 317 Hosted PBX 318 Unified Communications 319 Business Phone Systems 320 Contact Center Solutions 321 IVRS 322 Voicemail 323 Text Messaging 324 Roaming 325 Calling Plans 326 Device 327 Sim Card 328 Coverage 329 Network 330 Messaging 331 Email 332 Storage 333 File Sharing 334 Password Manager 335 Encryption 336 VPN 337 Two Factor Authentication 338 Antivirus 339 Firewall 340 Malware 341 Cybersecurity 342 Data Backup 343 Disaster Recovery 344 CRM 345 ERP 346 BI 347 Analytics 348 Project Management 349 Productivity 350 Task Management 351 Accounting 352 HR 353 Human Resources 354 Payments 355 Banking 356 Financial 357 Insurance 358 Investment 359 Loans 360 Real Estate 361 Legal 362 Tax 363 Trading 364 Stock 365 Cryptocurrency 366 Fundraising 367 Donations 368 Event Planning 369 Social Media 370 Search Engine 371 Marketing 372 PR 373 Content 374 Advertising 375 Lead Generation 376 Design 377 Development 378 Programming 379 API 380 Game 381 Virtual Reality 382 Augmented Reality 383 IOT 384 Blockchain 385 Robotics 386 Automation 387 Manufacturing 388 Mobile 389 Smartphone 390 Tablets 391 Apple 392 Android 393 Windows 394 Wireless 395 Bluetooth 396 WiFi 397 Networking 398 Devices 399 Software 400 Hardware 401 Operating System 402 Printers 403 Servers 404 Computer 405 Mac 406 Desktop 407 Application 408 Cloud 409 Security 410 Storage 411 Backup 412 AI 413 Big Data 414 Server Side 415 Client Side 416 Database 417 DevOps 418 CI 419 CD 420 Testing 421 Performance 422 Functional 423 Unit 424 Manual 425 Agile 426 Waterfall 427 SDLC 428 UX 429 UI 430 Usability 431 Info Architecture 432 Wireframe 433 Prototype 434 Design Tool 435 Sketch 436 Figma 437 Axure 438 Adobe XD 439 InVision 440 Zeplin 441 Framer 442 Moqups 443 Balsamiq 444 Atomic 445 ProtoIO 446 Marvel 447 Principle 448 Flinto 449 HotGloo 450 Protopie 451 Origami 452 JustinMind 453 Antetype 454 Indigo Studio 455 Pixate 456 UXPIN 457 MockFlow 458 Craft 459 Avocode 460 Zeppelin 461 Visually 462 Plugin 463 Atom 464 Sublime 465 Brackets 466 Visual Studio Code 467 IntelliJ 468 Pycharm 469 Eclipse 470 Dreamweaver 471 Blender 472 Cinema 4 D 473 Maya 474 Zbrush 475 Substance Designer 476 Unreal 477 Unity 478 Cryengine 479 DirectX 480 Autodesk 481 Lightwave 482 MODO 483 Marimset 484 Clarisse 485 Realflow 486 Terregan 487 Arnold 488 Renderman 489 Octane 490 VRay 491 Maxwell 492 KeyShot 493 RedShift 494 Modo 495 Mari 496 Katana 497 HOFI 498 Nuke 499 Carerra 500 After Effects 501 Final Cut 502 Premiere 503 Sony Vegas 504 DaVinci 505 Hitfilm 506 Timeline 507 Storyboard 508 Celtx 509 Clip Champ 510 Biteable 511 Rocketium 512 Kapwing 513 Movie mator 514 Wave 515 Descript 516 Hippovideo 517 Promosh 518 Animaker 519 Rawshorts 520 Creallo 521 Placeit 522 Poweroon 523 Renderforest 524 Muvisu 525 Exploe 526 Makewebvideo 627 Fotajet 528 Canva 529 Pictochart 530 Infograme 531 Venngage 533 Snappa 533 Easel 654 Lucidpress 655 Adobe Spark 656 Photofy 657 Creately 658 Digramly 659 Genmymodel 660 Smartdraw 661 Mind mapping 662 Simplediagram 663 Concept draw 664 Ye 665 Visiomati 666 Grapholitte 667 Drwanywhere 668 Pencil project 669 Charcoal 670 Boxshot 671 Pain 672 Vector 673 Story board 674 Creator 675 Pyrographe 676 Adob illustrator 677 Coreldraw 678 Photoshop 679 GIM 680 kritas 681 Sumopaint 682 affinity 683 Pixel mator 684 Canon 685 Nikon 686 Sony 687 Olympus 688 Fuji 689 Panasonic 690 Tamrom 691 Sigma 692 Lens 685 Paint 86 Vector 87 StoryBoard 88 Creation 89 Pyrograph 90 Adobe Illustrator 91 CorelDRAW 92 Photoshop 93 GIMP 94 Krita 95 Sumopaint 96 Affinity 97 Pixelmator 98 Canon 99 Nikon 100 Sony 101 Olympus 102 Fuji 103 Panasonic 104 Tamron 105 Sigma 106 Zeiss 107 Lensbaby 108 Apple 109 Google 110 Microsoft 111 Samsung 112 LG 113 HTC 114 Huawei 115 OnePlus 116 Motorola 117 BlackBerry 118 Asus 119 Acer 120 Lenovo 121 Razer 122 Amazon 123 Acer 124 Alienware 125 Raspberry Pi 126 Arduino 127 Nvidia 128 AMD 129 Intel 130 Fitbit 131 Garmin 132 Samsung Gear 133 Apple Watch 134 Android Wear 135 Mi Band 136 Withings 137 Atlas 138 Strava 139 MapMyRun 140 Endomondo 141 Runkeeper 142 Calorie Counter 143 BMI Calculator 144 Sleep Tracker 145 Fitness Buddy 146 Fooducate 147 Lose It 148 WaterLog 149 Heart Rate Monitor 150 Blood Pressure Monitor 151 Weight Watchers 152 Nutritionix 153 Food Monster 154 SparkPeople 155 HealthyOut 156 Eat This Much 157 MyFitnessPal 158 Your Weight Loss 159 Map My Fitness 160 Seven 161 Daily Burn 162 Lifesum 163 Strong 164 Pocket Yoga 165 Down Dog 166 Headspace 167 Calm 168 Zen 169 Sanvello 170 Pacifica 171 Stop Breathing 172 Smiling Mind 173 Balance 174 Happify 175 Depression CBT 176 Nature Sounds Relax 177 Brainwave Entrainment 178 Relax Melodies 179 Noise Machine 180 White Noise 181 Rain Rain 182 Cellular 183 Verizon 184 AT&T 185 Sprint 186 TMobile 187 UPS 188 FedEx 189 USPS 190 DHL 191 Airbnb 192 HomeAway 193 VRBO 194 Booking 195 Expedia 196 Hotels 197 Kayak 198 Trivago 199 Orbitz 200 Travelocity 201 Skyscanner 202 Cheaptickets 203 Priceline 204 Agoda 205 Momondo 206 JetRadar 207 Wizz Air 208 EasyJet 209 Etihad 210 Emirates 211 Qatar 212 Kuwait 213 Turkish 214 Cathay Pacific 215 British Airways 216 Air India 217 United Airlines 218 Delta 219 Southwest 220 Alaska 221 American Airlines 222 Avianca 223 Frontier 224 Spirit 225 WestJet 226 Academics 227 Coursera 228 edX 229 Udacity 230 Khan Academy 231 OpenLearn 232 MIT OCW 233 Stanford 234 Harvard 235 Yale 236 Oxford 237 Cambridge 238 Codecademy 239 Code School 240 Treehouse 241 Free Code Camp 242 Pluralsight 243 Lynda 244 Skillshare 245 Scratch 246 Robotics 247 Data Science 248 Artificial Intelligence 249 Machine Learning 250 Deep Learning 251 Natural Language Processing 252 Python 253 Java 254 Node JS 255 Ruby 256 PHP 257 Swift 258 Objective C 259 HTML 5260 CSS 261 Bootstrap 262 Foundation 263 Javascript 264 Angular 265 React 266 WordPress 267 Magento 268 Shopify 269 BigCommerce 270 SalesForce 271 NetSuite 272 Zoho 273 Quickbooks 274 FreshBooks 275 MailChimp 276 ActiveCampaign 277 HubSpot 278 Infusionsoft 279 Ontraport 280 Marketo 281 Constant Contact 282 Weebly 283 Squarespace 284 GoDaddy 285 Wix 286 Jimdo 287 Webs 288 VoIP 289 Twillio 290 RingCentral 291 Skype 292 Google Voice 293 Mitel 294 Nextiva 295 Shoretel 296 Avaya 297 Grasshopper 298 MegaPath 299 BroadVoice 300 Dialpad 301 Intermedia 302 PBX 303 Axvoice 304 Ooma 305 MagicJack 306 Voxox 307 Phonebooth 308 Onvoy 309 Altice 310 Spectrum 311 Comcast 312 Windstream 313 AT&T 314 Verizon 315 CenturyLink 316 Earthlink 317 Hosted PBX 318 Unified Communications 319 Business Phone Systems 320 Contact Center Solutions 321 IVRS 322 Voicemail 323 Text Messaging 324 Roaming 325 Calling Plans 326 Device 327 Sim Card 328 Coverage 329 Network 330 Messaging 331 Email 332 Storage 333 File Sharing 334 Password Manager 335 Encryption 336 VPN 337 Two Factor Authentication 338 Antivirus 339 Firewall 340 Malware 341 Cybersecurity 342 Data Backup 343 Disaster Recovery 344 CRM 345 ERP 346 BI 347 Analytics 348 Project Management 349 Productivity 350 Task Management 351 Accounting 352 HR 353 Human Resources 354 Payments 355 Banking 356 Financial 357 Insurance 358 Investment 359 Loans 360 Real Estate 361 Legal 362 Tax 363 Trading 364 Stock 365 Cryptocurrency 366 Fundraising 367 Donations 368 Event Planning 369 Social Media 370 Search Engine 371 Marketing 372 PR 373 Content 374 Advertising 375 Lead Generation 376 Design 377 Development 378 Programming 379 API 380 Game 381 Virtual Reality 382 Augmented Reality 383 IOT 384 Blockchain 385 Robotics 386 Automation 387 Manufacturing 388 Mobile 389 Smartphone 390 Tablets 391 Apple 392 Android 393 Windows 394 Wireless 395 Bluetooth 396 WiFi 397 Networking 398 Devices 399 Software 400 Hardware 401 Operating System 402 Printers 403 Servers 404 Computer 405 Mac 406 Desktop 407 Application 408 Cloud 409 Security 410 Storage 411 Backup 412 AI 413 Big Data 414 Server Side 415 Client Side 416 Database 417 DevOps 418 CI 419 CD 420 Testing 421 Performance 422 Functional 423 Unit 424 Manual 425 Agile 426 Waterfall 427 SDLC 428 UX 429 UI 430 Usability 431 Info Architecture 432 Wireframe 433 Prototype 434 Design Tool 435 Sketch 436 Figma 437 Axure 438 Adobe XD 439 InVision 440 Zeplin 441 Framer 442 Moqups 443 Balsamiq 444 Atomic 445 ProtoIO 446 Marvel 447 Principle 448 Flinto 449 HotGloo 450 Protopie 451 Origami 452 JustinMind 453 Antetype 454 Indigo Studio 455 Pixate 456 UXPIN 457 MockFlow 458 Craft 459 Avocode 460 Zeppelin 461 Visually 462 Plugin 463 Atom 464 Sublime 465 Brackets 466 Visual Studio Code 467 IntelliJ 468 Pycharm 469 Eclipse 470 Dreamweaver 471 Blender 472 Cinema 4 D 473 Maya 474 Zbrush 475 Substance Designer 476 Unreal 477 Unity 478 Cryengine 479 DirectX 480 Autodesk 481 Lightwave 482 MODO 483 Marimset 484 Clarisse 485 Realflow 486 Terregan 487 Arnold 488 Renderman 489 Octane 490 VRay 491 Maxwell 492 KeyShot 493 RedShift 494 Modo 495 Mari 496 Katana 497 HOFI 498 Nuke 499 Carerra 500 After Effects 501 Final Cut 502 Premiere 503 Sony Vegas 504 DaVinci 505 Hitfilm 506 Timeline 507 Storyboard 508 Celtx 509 Clip Champ 510 Biteable 511 Rocketium 512 Kapwing 513 Movie mator 514 Wave 515 Descript 516 Hippovideo 517 Promosh 518 Animaker 519 Rawshorts 520 Creallo 521 Placeit 522 Poweroon 523 Renderforest 524 Muvisu 525 Exploe 526 Makewebvideo 627 Fotajet 528 Canva 529 Pictochart 530 Infograme 531 Venngage 533 Snappa 533 Easel 654 Lucidpress 655 Adobe Spark 656 Photofy 657 Creately 658 Digramly 659 Genmymodel 660 Smartdraw 661 Mind mapping 662 Simplediagram 663 Concept draw 664 Ye 665 Visiomati 666 Grapholitte 667 Drwanywhere 668 Pencil project 669 Charcoal 670 Boxshot 671 Pain 672 Vector 673 Story board 674 Creator 675 Pyrographe 676 Adob illustrator 677 Coreldraw 678 Photoshop 679 GIM 680 kritas 681 Sumopaint 682 affinity 683 Pixel mator 684 Canon 685 Nikon 686 Sony 687 Olympus 688 Fuji 689 Panasonic 690 Tamrom 691 Sigma 692 Lens

1. Leverage Social Media:
Create a presence on social media channels like Facebook, Twitter, Instagram and YouTube to engage with users and promote the app. Post regularly about new features or updates to keep users interested.

2. Utilize Influencer Marketing:
Reach out to influencers in your target market who have large followings of potential WhatsApp users and offer them promotional deals for sharing content about the app with their followers/subscribers.

3. Invest in Paid Advertising:
Run targeted ads through search engines like Google AdWords or social networks such as Facebook Ads to reach potential customers more quickly than organic methods alone can achieve.

4. Encourage User Reviews:
Ask happy customers to leave reviews of your app on popular review sites such as App Store or Play Store so that other potential users know what they're getting before downloading it themselves.

5. Participate in Relevant Communities:
Join online discussion boards related to messaging apps, mobile technology, etc., and become an active participant by answering questions and demonstrating how WhatsApp Messenger could be beneficial for others within those communities - this will help spread awareness of the app organically among people already talking about it!