Skip to content
Tech Dev NotesTech Dev Notes
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

Week 38, 2026 · 14 to 20 Sept 2026

News apps this week

0 new versions, 0 new top-10 placings and 0 tech stack changes across 1 apps.

All appsLifestyle1News1Productivity29Utilities1

Feature flags

X web feature flags

  • X app icon

    X web feature flags · X iOS

    16 flags moved: 10 added, 6 changed

    Including complat_responsive_web_castle_minting_enabled, payments_timeline_action, responsive_web_grok_xweb_link_required

Ranks compare the last complete chart collection of this week with the last one of the week before, in the App Store and Google Play top free charts. Collections compared: Google Play 13 Sep 12:08 to 20 Sep 12:08 UTC. 3 countries were left out because one of the two collections was missing or partial there. Weeks run Monday to Sunday (UTC).

Archive

Earlier weeks

Week 43, 202619 to 25 Oct 2026Week 42, 202612 to 18 Oct 2026Week 41, 20265 to 11 Oct 2026Week 39, 202621 to 27 Sept 2026Week 38, 202614 to 20 Sept 2026

Get it weekly

Your apps, every Monday

Follow apps to get the changes for just those apps by email on Monday morning, or subscribe to the RSS feed. Pick apps to follow

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

Tech Dev Notes © 2026

RSSAboutPublic APIStatusSecurityPrivacyTermsSite map@techdevnotes