Hey Product Hunt! 👋

I'm Khang, the maker of Clean Master.

Why I built it: most cleaner apps I tried were full of ads and fake "your phone is infected!" warnings, yet they ask for access to your entire photo library, the most personal data on your phone. I wanted a cleaner people could actually trust.

So I set one rule: nothing leaves your phone. Every scan runs on your device.

Who it's for: anyone who keeps seeing "Storage Almost Full", especially people with years of photos, screenshots and videos they never clean up.

What it does:

Duplicate and similar photos. Perceptual hashing catches re-saved and forwarded copies, not only identical files.
Best Shot. Picks the best photo from each burst and tells you why ("Sharpest · eyes open").
Smart screenshots. On-device OCR sorts them into receipts, chats, code and memes, and makes them searchable.
Video compression. Shrinks large videos and keeps the original if the saving is too small to matter.
Duplicate contacts. Merge or remove them in a few taps.
Private vault. Passcode + Face ID for IDs, receipts and personal photos.

Under the hood: React Native + Expo, with custom native modules in Swift and Kotlin, and Apple Vision / Google ML Kit for on-device AI.

The feedback that would help most:

Did the duplicate and Best Shot picks match what you would have chosen?
Was anything in the permissions or onboarding unclear or worrying?
What's taking up the most space on your phone that we don't handle yet?

so honest, critical feedback is very welcome. I'll be here all day replying to every comment 🙏