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Keshvra
Mobile · Case Study

Media Cleaner: Junk & Storage

An Android storage cleaner that finds junk files and the photos, videos and documents chat apps leave behind, and clears them in a few taps.

Media Cleaner: Junk & Storage product preview
The Challenge

Where they started

Phones fill up fast. Chat apps quietly save every photo, video, voice note and document people receive, and old app installers, temporary files and thumbnail caches pile up in the background. Most users can't tell what is taking their space, and many cleaner apps are slow, scan again on every launch, and use misleading "boost" claims. The goal was a fast, honest cleaner that shows exactly what can be removed, never deletes anything without the user's say-so, and keeps every file on the phone.

The Solution

What we built

We designed and built a native Android app with a clean, modern interface, a cached scan engine that opens the home screen instantly, and a dedicated junk cleaner. Everything is scanned and deleted on the device; no file is ever uploaded.

  • Junk Cleaner that finds old APK installers, temporary and log files, unfinished downloads, thumbnail cache and empty folders, with a live scan and a "space freed" summary
  • Chat media cleaner that sorts media from WhatsApp, Instagram and Telegram into photos, videos, voice notes, documents, GIFs, stickers and statuses
  • Storage overview with a usage ring and a colour bar showing what fills the phone
  • Other social apps section that shows how much space 30+ popular social apps use, with a shortcut to clear their cache
  • Full-screen preview, large and old file filters and multi-select before anything is deleted
  • Instant home screen: one shared scan cache across every screen, so the app never scans the same folder twice
  • Light and dark themes, a custom app icon and an animated splash screen
  • Google AdMob ads, GDPR consent, Firebase Analytics, Crashlytics and Remote Config
  • Google Play ready: privacy policy, permission disclosures and a store listing optimised for search (ASO)
The Results

Junk and chat media cleaned entirely on-device

  • 6Junk file types detected
  • 30+Apps supported
  • 0Files uploaded

Technology used

  • Kotlin
  • Jetpack Compose
  • Android
  • Firebase
  • Google AdMob
Next projectDocVault – All Document ViewerPDF, Word, Excel, PowerPoint, text and eBooks in one app, with no uploads

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