📈Last 7 days+110 installs — 175% faster than the week before (+40) · 8/day since Oct 8
🏆Among Tools appstop 10% by installs gained this week (598 peers growing)
🛠Updatesactively updated · updated 17 days ago · every ~10 days (3 updates tracked)
Installs since launch
+224 installs
since Oct 8
Update history
3.3.1Oct 29, 2026 · seen Nov 6, 2026
TTS Listen mode redesigned with a bottom sheet player for a smoother experience.<br>- Tap Listen to open the TTS player directly<br>- Improved speed and progress controls<br>- Voice picker now opens inline<br>- Bug fixes and performance improvements
3.2.0Oct 26, 2026
• Source language selection: Choose the source language when requesting a translation for more accurate subtitles.<br>• File upload subtitles: Upload audio and video files (MP4, MP3, WAV, etc.) directly to generate subtitles. (Pro)<br>• Improved file picker UI and stability improvements
3.0.0Oct 9, 2026 · seen Oct 16, 2026
Introducing RootblySub Pro.<br><br>· Make subtitles with no daily limit (fair use applies)<br>· Videos up to 3 hours<br>· Save subtitle files (SRT/VTT) for Premiere, CapCut and more<br>· Launch offer: new subscribers get an intro price for the first 3 months<br><br>RootblySub stays free to use. Watching subtitles that already exist is unlimited, and you can make up to 3 subtitles a day for videos
Rootbly: AI Subtitles 4 youtub is a tools app by bysu with 100+ downloads (about 487 estimated). +110 installs in the last 7 days. Released Aug 14, 2026. Install growth, rank history, SDKs and ad networks.
From the store listing: “Watch YouTube videos with AI-translated subtitles in your language”
