Top Developer Tools apps in United States 🇺🇸
As of May 12, 2026, TestFlight is the #1 Developer Tools app in United States on iOS.
iOSAndroid
#App / PublisherCategoryIntel
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What changed
Movement between the previous day and May 12, 2026.
New entrants
Risers
- Rootly
#95 → #40
- KittyLitter
#68 → #28
- ChicFitIQ - AI Outfit Stylist
#47 → #25
STL File Viewer Pro#100 → #80
Claude Code Notifier Companion#80 → #65
Fallers
Vlive-#41 → #88
Claude Code & Codex Mobile IDE#59 → #93
- 图标帝
#25 → #49
Wheel of Names: Random Name#73 → #97
- Remodex - Remote AI Coding
#27 → #41
Methodology
Rankings are pulled daily from the iOS store charts for United States. We snapshot the top entries each day and compute day-over-day change relative to the prior snapshot. See our full methodology for data sources, refresh cadences, and quality filters.
Frequently asked questions
What is the #1 Developer Tools app in United States on iOS?
As of May 12, 2026, TestFlight is the #1 Developer Tools app in United States on iOS, based on the public iOS chart rankings Marlvel tracks daily.
How often are these rankings updated?
Marlvel snapshots the iOS charts for United States every day and computes day-over-day movement. The "Current" page always reflects the latest snapshot; dated archive pages preserve each day's top 50.
Where does Marlvel's ranking data come from?
Rankings are pulled from the public iOS store charts for United States. See our methodology for data sources, refresh cadence, and the quality filters applied before a ranking is indexed.