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
/
Try asking
?Top climbers on the App Store this weekAsk
?Where does ChatGPT rank?Ask
?Which apps use RevenueCat?Ask
?Highest rated apps on Google PlayAsk
?Largest iOS appsAsk
?Most used SDKs on AndroidAsk

enter
Try asking
?Top climbers on the App Store this weekAsk
?Where does ChatGPT rank?Ask
?Which apps use RevenueCat?Ask
?Highest rated apps on Google PlayAsk
?Largest iOS appsAsk
?Most used SDKs on AndroidAsk

Questions

Which apps' Google Play ratings fell most this week?

Google Play rating drops, tracked apps, this week

Grok Bot's Google Play rating fell the most this week, from 4.83 to 4.79.

#AppRating nowBeforeChange
1Grok Bot4.794.83-0.04
T2Kimi3.843.85-0.01
T2IKEA Home smart3.773.78-0.01

Compares the 00:00 UTC run, 3 Nov 2026 with the 00:00 UTC run, 5 Nov 2026: complete history covers only 2 days, short of a full week. Needs 50+ ratings in both runs.

Among the apps TechDevNotes tracks · data from the 00:00 UTC run, 5 Nov 2026

Related questions

  • Which apps climbed most in the US Google Play top free chart this week?→
  • Which apps climbed most in the US Google Play top free chart today?→
  • Which apps climbed most in the India Google Play top free chart this week?→
  • Which apps dropped most in the US Google Play top free chart this week?→
  • Which tracked apps rank highest in the US Google Play top free chart?→
  • Which tracked apps rank highest in the Brazil Google Play top free chart?→
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