An XDA writer audited a full Google Drive last month and found four hidden space hogs before paying for more storage: forgotten Gmail attachments, WhatsApp backups eating over 5 GB, duplicate high-res photos in Google Photos, and old Drive PDFs from finished projects. The same pattern shows up on almost every phone we tested. The best apps for cloud storage cleanup on Android split into two camps: cloud-side tools that see what your Google account is holding, and phone-side cleaners that reclaim local megabytes so backups do not fill the cloud again. We tested seven picks across both camps, plus one legacy name we kept off the list for reasons below.
What to look for in a cleanup app
Permission scope matters first. A cleanup app that wants usage-access, notification-access, and accessibility service just to clear a cache is asking for more than the job needs. Anything that runs a foreground service to sit in your notification tray for weeks is not paying for itself.
The second signal is whether the app deletes what it finds or only suggests. Files by Google shows a “review and clean” flow with checkboxes before anything moves to trash. Some paid cleaners auto-delete on a schedule, which sounds convenient until an app you use twice a year loses its cache mid-flight.
Cloud coverage is the third filter. Most Android cleaners only touch local files. Google Drive, Google Photos, Dropbox, and OneDrive live in their own apps, and the storage manager inside Google One is the only tool that gives one view across Drive, Gmail, and Photos in the same panel. Fourth, check whether the app touches Photos at all or stops at Files, and fifth, look at ad load and how obvious the paywall gets after the first scan.
Quick comparison
| App | Best for | Free plan | Ads | Standout |
|---|---|---|---|---|
| Files by Google | Ad-free phone-side cleanup | Fully free | None | Backup-aware "review and clean" cards |
| Google One | Cloud audit across Drive, Gmail, Photos | Free tier includes the storage manager | Upsells to paid plans | One panel for the whole 15 GB quota |
| SD Maid 2/SE | Open-source deep cleaning | Full free build on F-Droid | None | Corpse finder for residue after uninstall |
| CCleaner | Photo library cleanup with compression | Free with ads | Yes, interstitials | Similar-photo and low-quality filters |
| 1Tap Cleaner | Fast cache clears from a shortcut | Free with ads | Yes, banner | Home screen widget for one-tap clears |
| Storage Analyzer & Disk Usage | Visual map of what is eating space | Fully free | Minimal | Sunburst chart down to individual folders |
| Norton Clean | Brand-name option with minimal permissions | Fully free | None | Fresh May 2026 rebuild for Android 15 |
We kept Clean Master off the numbered list. Google pulled every Cheetah Mobile app from the Play Store in 2020 for disruptive ads and click fraud, and the app still available on third-party mirrors carries the same reputation. We do not recommend installing it in 2026.
1. Files by Google, ad-free with backup-aware suggestions
Files by Google ships pre-installed on most Android phones and remains the best default for anyone who wants to reclaim space without installing anything else. The Clean tab groups suggestions into cards for junk files, duplicates, large files, unused apps, and memes-and-screenshots, and the “backed up” filter cross-checks Google Photos so it only surfaces media that already lives in the cloud. Nothing deletes without a checkbox confirmation, and the app has never carried ads.
Where it falls short: duplicate detection is exact-byte only, so burst-shot near-duplicates from the camera never appear as candidates. There is no cloud audit for Drive, Gmail, or non-Google storage services.
Pricing: free, no paid tier.
Platforms: Android 8 and up, works on Android 15 and 16 without issue in our tests.
Download: Aptoide · Google Play
Bottom line: if you install one cleaner, install this one. Skip it only if you specifically need cloud-side auditing that Google One handles better.
2. Google One, the cloud-side view most people never open
Google One is where the actual audit happens. The storage manager inside the app shows a broken-out view of the 15 GB free quota across Drive, Gmail, and Photos, and every category has its own “large items” list you can walk through and delete. This is the only tool in this list that surfaces the hidden hogs the XDA piece flagged, including WhatsApp backups sitting in Drive, blurry photos in Photos, and Gmail attachments over 10 MB.
Where it falls short: the storage manager is buried behind two taps from the home screen, and the app leans hard on paid plan upsells every time you open it. It only manages Google storage, so Dropbox and OneDrive users get nothing from it.
Pricing: free tier includes the full storage manager. Paid plans start at around $1.99 per month for 100 GB.
Platforms: Android 8 and up.
Download: Aptoide · Google Play
Bottom line: open it once a quarter, run the cleanup suggestions, and close it. That routine alone will keep most people off the paid tier.
3. SD Maid 2/SE, open-source deep cleaning
SD Maid 2/SE is the tool for anyone who wants to see and control every file being touched. The app is open source and published on F-Droid as a fully free build, with an in-app Pro upgrade at around $4 one-time on the Play Store version. CorpseFinder locates files left behind by uninstalled apps, SystemCleaner runs rule-based sweeps of temp folders, and the deduplication feature compares files by hash and by content similarity.
Where it falls short: the first launch asks for a stack of permissions including “all files access” and usage stats, and the app is not shy about explaining why it needs each one. The UI is dense and lists everything before it does anything, which is the opposite of the “tap Clean” workflows most people expect.
Pricing: free build on F-Droid, Pro upgrade about $4 one-time on Google Play for scheduling and advanced filters.
Platforms: Android 8 and up, works on Android 15 and 16.
Download: Aptoide · Google Play
Bottom line: the right pick if you distrust one-tap cleaners and want to know what is being removed before it goes. Skip it if you would rather not read a screen full of permission dialogs.
4. CCleaner, mature junk rules with a photo cleaner attached
CCleaner on Android is a different product from the Windows one that made the name. The Android build focuses on cache junk, browser history, and a photo library scan that filters for similar shots, low-quality captures, and screenshots. A compression tool lets you shrink large videos before uploading them to the cloud, and there is a system monitor for RAM and battery temperature.
Where it falls short: the free tier runs full-screen interstitial ads between scans, and Premium is the standard subscription model rather than a one-time unlock. The publisher is Gen Digital, which also owns Norton Clean, Avast Cleanup, and AVG Cleaner, so the four brands share code and feel interchangeable.
Pricing: free with ads. Premium is around $20 per year.
Platforms: Android 7 and up.
Download: Aptoide · Google Play
Bottom line: worth trying for the photo library cleaner if Files by Google’s exact-byte matching keeps missing duplicates. The rest of the app can wait.
5. 1Tap Cleaner, cache clears from a home screen shortcut
1Tap Cleaner does exactly what the name says. The main feature is a widget that clears app caches, browser history, call logs, and clipboard contents with one tap from the home screen, no menu diving. It is the fastest tool in this list for a “phone feels slow, clear the caches” routine that some people run every few days.
Where it falls short: the free version has a persistent banner ad and lacks the dark theme and scheduling options. The scope is narrow, so pair it with Files by Google or SD Maid for anything beyond cache and history.
Pricing: free with ads, Pro upgrade is a one-time purchase for ad removal and extras.
Platforms: Android 6 and up. The Play Store listing splits into a free build and a Pro build.
Download: Aptoide · Google Play
Bottom line: install it for the widget, ignore the rest. Not a full audit tool.
6. Storage Analyzer & Disk Usage, a visual map of every folder
Storage Analyzer & Disk Usage answers one question well: what is actually using the space. The app renders a sunburst chart of the file system that you can zoom into folder by folder, so a 4 GB WhatsApp Media folder or a 900 MB Snapchat cache is immediately visible instead of buried in Android’s “Other” category. There is no auto-clean; the app opens the folder in the system file picker so you can decide what to delete.
Where it falls short: it does not offer suggestions, so it is closer to a diagnostic tool than a cleaner. Reading the chart takes a minute if you have never seen a treemap before.
Pricing: fully free, minimal ads in-app.
Platforms: Android 6 and up.
Download: Aptoide · Google Play
Bottom line: pair this with Files by Google when you know the phone is full but cannot tell what is holding the space. It answers the question that Android’s own storage panel refuses to answer clearly.
7. Norton Clean, brand-name option with a light footprint
Norton Clean was rebuilt for Android 10 and higher in May 2026 with a new UI and a smaller permission set than most cleaners. The app scans for residual files, cache, and duplicate photos, and unlike the CCleaner sibling it does not run interstitial ads or push a paid plan. Norton also does not require notification access or usage stats, which is unusual in this category.
Where it falls short: feature depth is thinner than SD Maid or CCleaner. There is no cloud audit, no video compression, and no scheduling. The trust angle is the whole pitch.
Pricing: fully free.
Platforms: Android 10 and up.
Download: Aptoide · Google Play
Bottom line: the pick for anyone who wants a recognisable brand without the ad load its Gen Digital siblings carry. Basic, but honest.
How to pick the right one
If you only want to fix a full Google account, open Google One, run the storage manager for ten minutes, and stop there. It is the only tool that shows Drive, Gmail, and Photos in one place, and the free tier includes the full audit.
If your phone is full and you have no idea what is holding the space, run Files by Google first for the review-and-clean flow, then open Storage Analyzer & Disk Usage to see the treemap for anything Files missed. This combination catches almost every real space hog without installing a background service.
If you are comfortable reading permission dialogs and want to see every file being removed before it goes, SD Maid 2/SE from F-Droid is the honest pick and stays free forever. If you specifically need to compress large videos before backup or find near-duplicate photos that Files misses, CCleaner is worth a short install even with the ads.
Avoid the “one tap boost your phone” apps that promise to speed up RAM or extend battery. Android manages memory itself, and every study of these tools has shown either no measurable effect or a net negative when the app runs a foreground service. That includes anything descended from the old Clean Master and Cheetah Mobile pattern.
FAQ
What is the best free app for cloud storage cleanup on Android? Google One for the cloud-side view of Drive, Gmail, and Photos, and Files by Google for the phone-side cleanup. Both are free, both are made by Google, and together they cover the audit-then-delete loop end to end. Neither requires a paid plan for the cleanup features.
How do I free up Google Drive space without paying for more storage?
Open Google One, tap the storage manager, and walk through the “large items” lists for Drive, Gmail, and Photos in order. The XDA audit hook applies here: check for old WhatsApp backups over 5 GB, search Gmail for larger:10M, and empty the Google Photos trash. Most people recover several gigabytes in under fifteen minutes.
Are cleaner apps like CCleaner and Clean Master safe on Android in 2026? CCleaner is safe if you download it from the Play Store, but its free tier is heavy on ads and the parent company Gen Digital owns several near-identical brands. Clean Master was pulled from the Play Store in 2020 for click fraud and disruptive ads, and we do not recommend installing it from third-party sources in 2026.
Does Files by Google actually free up space or just show suggestions? It deletes what you confirm. The Clean tab surfaces cards for junk, duplicates, large files, and backed-up media, and every card has a checkbox list you tick before anything moves to trash. Nothing auto-deletes, which is the safest default for a tool that runs on your primary phone.
What is the difference between Files by Google and Google One? Files by Google is a phone-side cleaner that only sees local files on your device. Google One is a cloud-side tool that shows what is in your Google account across Drive, Gmail, and Photos. Use both: Files by Google to keep the phone under its storage cap, Google One to keep the 15 GB free cloud tier from filling up.
Do storage cleaner apps need all those permissions they ask for? Some do, most do not. A cache and history cleaner like 1Tap Cleaner needs limited access. A deep cleaner like SD Maid needs “all files access” to find residual data from uninstalled apps. If a “one tap boost” app asks for accessibility service, usage stats, and notification access to clear a cache, that is a signal to uninstall it and use Files by Google instead.
