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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
AI tools

Changelogs for Claude Code, Codex, Cursor, Grok and more.

  • AI tool releasesLatest versions across tools
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.

GrokGrok BotXChatGPTClaudeGoogle GeminiDeepSeekPerplexityMicrosoft CopilotMeta AILe ChatNotionSpotifyApple MusicTesla
App directory→
Grok - AI Chat & Video app icon
Climbing this weekGrok - AI Chat & Video#80 on Android +6

App Store, United States

On the iPhone free chart

App Store charts →
Grok - AI Chat & Video app icon
Grok#27
Grok Bot app icon
Grok Bot#96
X app icon
X#29
ChatGPT app icon
ChatGPT#3
Claude by Anthropic app icon
Claude#12
Google Gemini app icon
Google Gemini#10
Spotify: Music and Podcasts app icon
Spotify#46

Google Play, United States

On the Android free chart

Google Play charts →
Grok - AI Chat & Video app icon
Grok#80
X app icon
X#20
ChatGPT app icon
ChatGPT#2
Claude by Anthropic app icon
Claude#35
Google Gemini app icon
Google Gemini#75
Spotify: Music and Podcasts app icon
Spotify#51

Changes

What changed

This week

Grok, ChatGPT, Claude

Claude by Anthropic app icon
Claude by Anthropic
v1.261002.20Released  Squashed some bugs and improved the overall experience. Yours, Claude
v1.261002.20
Grok - AI Chat & Video app icon
Grok - AI Chat & Video
v1.2.43-release.02Released  
v1.2.43-release.02
Claude by Anthropic app icon
Claude by Anthropic
v1.261002.20Released  Squashed some bugs and improved the overall experience. Yours, Claude
v1.261002.20
Claude by Anthropic app icon
Claude by Anthropic
v1.260930.20Released  Squashed some bugs and improved the overall experience. Yours, Claude
v1.260930.20
ChatGPT app icon
ChatGPT
v1.2026.267Released  Bug fixes and small improvements.
v1.2026.267
Claude by Anthropic app icon
Claude by Anthropic
v1.260930.20Released  Squashed some bugs and improved the overall experience. Yours, Claude
v1.260930.20

This week

Grok Bot, Claude Code, Codex

View all→
Grok Build Runtime
Grok CLI 1.0.49 records a first-party API key probe on the auth surface, with ctx verdict Unknown. Event volume for the same basic workload is unchanged from 1.0.46.
Oct 5 18:40 
Grok Web
grok.com (~3h hop)
Oct 5 07:52 
Grok Web
Projects / nav. Agent sidebar copy for Projects is gone (Projects, New Project, Create new project).
Oct 5 04:51 
Codex CLI
Patch alpha (0.162.0-alpha.14): codex remote-control can run an embedded app-server in the foreground, with supporting TUI and app-server work.
0.162.0-alpha.14 
Codex CLI
Alpha patch (0.162.0-alpha.9 → 0.162.0-alpha.11) with TUI turn-runtime work, tighter realtime transcript handling, and internal agent/session model cleanup.
0.162.0-alpha.11 
Grok Web
Projects — Attach menu copy now includes Create Project (attach-dropdown.add-project). Query-bar attach popover label: Attach.
Oct 3 21:53 

Fresh updates

App versions

View all→
X app icon
X
iOSReleased  
v12.31.1
Apple Music app icon
Apple Music
iOSReleased  
v3.8
Spotify: Music and Podcasts app icon
Spotify: Music and Podcasts
iOSReleased  
v9.1.88
Meta AI app icon
Meta AI
iOSReleased  
v292.1.0

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

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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
AI tool releases
  • AI tool releases
Notes
  • Blog
  • X feature flags
  • Grok companions
  • Grokipedia

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