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Tech Dev Notes
Apps

Every tracked app, its developer, and a lookup for any other app.

  • App directoryTracked apps on iOS and Android, by category
  • Find any appLive App Store and Google Play lookup
  • DevelopersPublishers and their apps
  • Compare appsHead to head ratings, ranks, versions
Charts

Live store charts, tracked app standings, and this week's movers.

  • App Store chartsLive top free, paid, grossing on iPhone
  • Google Play chartsLive top charts on Android
  • Tracked rankingsTracked apps across markets
  • MoversBiggest rises and drops this week
Screens

Real in-app screens, store listing screenshots, and launcher icons.

  • In-app screensReal-device iOS and Android UI
  • Store screenshotsApp Store and Google Play listings
  • App iconsAdaptive, monochrome, themed
Tech stacks

SDKs, frameworks and APIs detected in shipped app builds.

  • Tech stacks by appAnalyzed iOS and Android builds
  • TechnologiesEvery detected SDK and framework
Notes

Articles and xAI side projects.

  • BlogArticles and guides
  • X feature flagsFeature switches in X web
  • Grok companionsAni, Mika, Rudi, Valentine
  • GrokipediaRandom article and index

App Store and Google Play, tracked.

The apps we follow, where they rank, and what just shipped.

Grok app icon
Grok
Grok Bot app icon
Grok Bot
X app icon
X
ChatGPT app icon
ChatGPT
Claude app icon
Claude
Google Gemini app icon
Google Gemini
DeepSeek app icon
DeepSeek
Perplexity app icon
Perplexity
Microsoft Copilot app icon
Microsoft Copilot
Meta AI app icon
Meta AI
Le Chat app icon
Le Chat
Notion app icon
Notion
Spotify app icon
Spotify
Apple Music app icon
Apple Music
Tesla app icon
Tesla
App directory→
Grok - AI Chat & Video app icon
Climbing this weekGrok - AI Chat & Video#91 on Android +1

App Store, United States

On the iPhone free chart

App Store charts →
Grok - AI Chat & Video app icon
Grok#36
Grok Bot app icon
Grok Bot#79
X app icon
X#30
ChatGPT app icon
ChatGPT#4
Claude by Anthropic app icon
Claude#11
Google Gemini app icon
Google Gemini#14
Spotify: Music and Podcasts app icon
Spotify#34

Google Play, United States

On the Android free chart

Google Play charts →
Grok - AI Chat & Video app icon
Grok#91
X app icon
X#22
ChatGPT app icon
ChatGPT#2
Claude by Anthropic app icon
Claude#30
Google Gemini app icon
Google Gemini#90
Spotify: Music and Podcasts app icon
Spotify#65

Changes

What changed

This week

Grok, ChatGPT, Claude

Grok - AI Chat & Video app icon
Grok - AI Chat & Video
v1.4.55Released  - Improvements to Chat, Voice and Imagine
v1.4.55
ChatGPT app icon
ChatGPT
v1.2026.279Released  Bug fixes and small improvements.
v1.2026.279
ChatGPT app icon
ChatGPT
v1.2026.279Released  
v1.2026.279
Claude by Anthropic app icon
Claude by Anthropic
v1.261014.20Released  Squashed some bugs and improved the overall experience. Yours, Claude
v1.261014.20
Claude by Anthropic app icon
Claude by Anthropic
v1.261015.20Released  Squashed some bugs and improved the overall experience. Yours, Claude
v1.261015.20
Grok - AI Chat & Video app icon
Grok - AI Chat & Video
v1.4.53Released  - Improvements to Chat, Voice and Imagine
v1.4.53

Fresh updates

App versions

View all→
Google Gemini app icon
Google Gemini
iOSReleased  
v1.2026.4070303
Spotify: Music and Podcasts app icon
Spotify: Music and Podcasts
iOSReleased  
v9.1.90
X app icon
X
iOSReleased  
v12.35
DeepSeek - AI Assistant app icon
DeepSeek - AI Assistant
iOSReleased  
v2.6.2

Tech stacks

App tech stacks

View all→
Grok - AI Chat & Video app icon
Grok - AI Chat & Video
C/C++ (native) · Java · Kotlin · AppsFlyer
Grok AI app icon
Grok AI
C/C++ · Metal (shaders) · Objective-C · Swift
Grok Bot app icon
Grok Bot
C/C++ · Metal (shaders) · Objective-C · React Native / JavaScript
X app icon
X
C/C++ · Metal (shaders) · Objective-C · Swift
Grok - AI Chat & Video app icon
Grok Bot app icon
X app icon
ChatGPT app icon
Claude by Anthropic app icon
Google Gemini app icon

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Apps
  • App directory
  • Find any app
  • Developers
  • Compare apps
Charts
  • App Store charts
  • Google Play charts
  • Tracked rankings
  • Movers
Screens and icons
  • In-app screens
  • Store screenshots
  • App icons
Tech stacks
  • Tech stacks by app
  • Technologies
Notes
  • Blog
  • X feature flags
  • Grok companions
  • Grokipedia

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