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Apps

Every app in the catalog, 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 top charts, plus ranks and movers for the apps we track.

  • App Store chartsLive top free, paid, grossing on iPhone
  • Google Play chartsLive top charts on Android
  • Tracked appsAI and top apps: ranks and weekly movers
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.

  • BlogArticles and guides
Labs

X feature flags, Grok companions, and Grokipedia.

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

Design system & build prompt

Build an app like this

Every kit starts from data in the real app: named colours from its asset catalogs, bundled fonts, intents, extensions and SDKs, plus a read of its App Store screenshots. Copy the prompt into your AI coding tool and ship your own app with the same feel, under your own brand.

  • Build an app like ChatGPT

    7 colour roles, 337 named colours, 5 components, 12 screens, 8 features.

    System font (SF Pro) · single-screen chat with inline image display and bottom input bar

  • Build an app like Claude

    7 colour roles, 1 named colours, 8 components, 12 screens, 8 features.

    Fonts: Anthropic Sans (proprietary), Anthropic Serif (proprietary), JetBrains Mono · single-screen chat with modal overlays

  • Build an app like Gemini

    8 colour roles, 96 named colours, 7 components, 6 screens, 9 features.

    Fonts: Google Sans (proprietary), Google Sans Code, Google Sans Flex · single-screen chat with modal inputs and bottom action bars

  • Build an app like Grok

    4 colour roles, 6 named colours, 8 components, 5 screens, 8 features.

    System font (SF Pro) · top tab bar with single-screen chat interface

Kits are for inspiration and learning. Each prompt tells your AI tool to use its own name, logo and assets and not to copy trademarks, logos, screenshots or proprietary fonts. App names are trademarks of their owners; Tech Dev Notes is not affiliated with them.

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

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