By the DevX mobile team. We tested storage management methods on Samsung Galaxy S25, Google Pixel 9, OnePlus 13, and Motorola Edge running Android 15. We measured actual space recovered using each method on phones with 128GB and 256GB storage. Last verified March 2026.
How to Check Storage on Android
Before freeing up space, check what’s using your storage:
- Open Settings
- Tap Storage (or Battery and device care → Storage on Samsung)
- You’ll see a breakdown: Apps, Images, Videos, Audio, Documents, and Other
- Tap any category to see details and manage files
1. Clear App Cache (Quick Win)
App cache can consume gigabytes of storage over time. Clear it without losing any data:
- Go to Settings → Storage → Apps (or Settings → Apps)
- Sort by Size to find the biggest space hogs
- Tap an app → Storage → Clear cache
- Repeat for your largest apps (social media and streaming apps are the worst)
Space saved: Typically 2-5 GB by clearing cache for your top 10 apps.
2. Delete Unused Apps
- Go to Settings → Apps
- Sort by Size or Last used
- Uninstall apps you haven’t used in months
- For apps that came pre-installed, tap Disable if you can’t uninstall them
Tip: Google Play Store → Profile → Manage apps → Unused apps shows apps you haven’t opened recently.
3. Use Google Files “Clean” Feature
Google Files (pre-installed on most Android phones) has a smart cleaning tool:
- Open Files by Google (download from Play Store if not installed)
- Tap the Clean tab at the bottom
- You’ll see suggestions: Junk files, Duplicates, Old screenshots, Large files, Downloaded files, and Backed up media
- Review each category and tap Clean or Delete
Space saved: 1-10 GB depending on how long since your last cleanup.
4. Back Up and Delete Photos/Videos
Photos and videos are usually the biggest storage consumers:
- Open Google Photos
- Ensure backup is turned on: Tap your profile → Photos settings → Backup → Turn on
- Choose Storage saver quality (slightly compressed but saves space) or Original quality (uses your Google storage)
- Once backed up, tap Profile → Free up space
- This deletes local copies of photos already backed up to the cloud
Space saved: Often 10-30 GB or more on phones with years of photos.
5. Delete Old Downloads
- Open the Files app
- Go to Downloads
- Sort by Size or Date
- Delete old PDFs, APK files, and other downloads you no longer need
6. Clear WhatsApp/Messaging Media
WhatsApp, Telegram, and other messaging apps save every photo, video, and GIF sent to you:
- Open WhatsApp → Settings → Storage and data → Manage storage
- You’ll see total storage used and your largest files
- Tap Over 5 MB to find and delete the largest media files
- Select files and tap the Delete icon
7. Move Apps to SD Card
If your phone has a microSD card slot:
- Go to Settings → Apps
- Select an app → Storage
- If the option is available, tap Change → SD card → Move
Note: Not all apps support this. Games and large apps that do support it benefit the most.
8. Delete Offline Maps and Music
Offline content from Google Maps, Spotify, YouTube Music, and Netflix can use huge amounts of storage:
- Google Maps: Open Maps → Profile → Offline maps → delete maps you no longer need
- Spotify: Settings → Storage → Clear cache, and remove downloaded playlists
- Netflix: Open Netflix → Profile → Downloads → delete watched shows
9. Use Lite Versions of Apps
Many popular apps have “Lite” versions that use much less storage:
- Facebook Lite — ~2 MB vs ~400 MB for full Facebook
- Messenger Lite — ~10 MB vs ~150 MB
- Google Go — ~15 MB vs ~200 MB for Chrome
- Twitter/X Lite (via web app) — 0 MB installed storage
10. Factory Reset (Last Resort)
If nothing else works and your phone is critically low on storage:
- Back up everything first (Settings → Google → Backup)
- Go to Settings → General management → Reset → Factory data reset
- This erases everything and starts fresh
- Restore from your backup after the reset
FAQ
What is “Other” storage on Android?
“Other” typically includes system files, app data, cached data, and miscellaneous files that don’t fit into standard categories. You can reduce it by clearing app caches and restarting your phone.
Is it safe to clear app cache?
Yes. Clearing cache removes temporary files that apps create for faster loading. You won’t lose any personal data, login information, or app settings. The app may load slightly slower the first time after clearing, as it rebuilds its cache.
How much free space should I keep on my phone?
Aim to keep at least 10-15% of your total storage free. Android needs free space to function properly — for system updates, app updates, and temporary files. If storage drops below 10%, you may notice slowdowns and update failures.
