Exact copies, not guesses
A SHA-256 fingerprint decides what counts as a duplicate. Similar bursts and edited versions are left alone.
Find the copies. Keep the photo.
SlimSweep scans your entire photo library for exact duplicate photos and videos, compresses the ones you keep, and measures the space you actually get back. Everything happens on your device.
Not on the App Store or Google Play yet · Planned premium US$19.99/year
Measured space, not a promise
The dashboard reads your real free space and reports the bytes each cleanup actually returned.
Zero uploads
Scanning, compression and the vault run on your phone. Your photos and videos are never sent to us.
01 — How it works
Three steps. You stay in control.
No auto-delete and no surprise cleanup. Scan, review every group, then choose what goes — with a trash you can undo.
1
Scan the whole library
SlimSweep pages through every item instead of a sample, with live progress and a cancel button. Scanning is unlimited on the free plan.
2
Review each group
Matches are grouped side by side with size and date. You pick what stays. Nothing is selected on your behalf.
3
Reclaim, then undo if you want
Deleted items wait in SlimSweep's trash for 30 days on the free plan and 90 on premium. Single-item restore is always free.
02 — Features
Everything a cleanup needs. Nothing it doesn't.
SlimSweep is a cleaner for photos and videos, not a system booster. It does a small set of jobs and shows its work.
Exact-duplicate photo finder
Every file gets a SHA-256 fingerprint from its start and end. Only matching files are grouped, so look-alike frames and edited exports stay put.
Full-library scan
The scan covers the whole library, not the first few hundred items. Follow the progress, pause with cancel, and start again whenever you like.
Photo compression
Resize the long edge to 2048 px at 0.6 quality. You choose the files; SlimSweep shows the before and after size in megabytes.
Video compression
Shrink large videos with the platform encoder: AVAssetExportSession on iOS, MediaCodec on Android. Medium or low quality, MP4 out.
PremiumStorage dashboard
Real free space from the operating system, plus the measured difference after each cleanup. No estimates dressed up as facts.
Encrypted PIN vault
Keep private photos and videos behind a PIN. PBKDF2 derives the key, AES-GCM-256 encrypts the contents, and export is built in.
PremiumAlso in the app
Small safeguards that make the big buttons safe to press.
- Trash with 30-day undo, 90 days on premium
- 30 deletes and 10 photo compressions a day, free
- Onboarding that explains a permission before asking
- First session free of ads, then a capped ad policy
- 12 languages at launch, English included
- Anonymous usage counts you can switch off
03 — Privacy
Your photos never leave the phone.
A cleaner needs deep access to your library. SlimSweep is built so that access stays on the device, and so the parts that do go online are small, named and optional.
0
photos and videos uploaded. Scanning, compression and the vault all run locally.
On-device by default
Duplicate detection, compression and vault encryption run on your phone. There is no server-side copy of your library and no account to sign in to.
A permission, not a back door
Library access is requested when you start a scan, and iOS can limit it to selected photos. Revoke it at any time in system settings; the app simply stops seeing your library.
The vault stays locked here
PBKDF2 stretches your PIN; AES-GCM-256 encrypts the contents and the key stays in Keychain or Keystore. We cannot open the vault or reset the PIN.
Few signals, counted and optional
Ads come from Google AdMob — test IDs today, production will show real ads. Anonymous events tell us where the app breaks, and telemetry can be switched off in Settings.
SlimSweep Premium
Planned
US$19.99
per year
One yearly plan. No weekly tier, no monthly plan, no lifetime unlock.
- Unlimited deletes and compressions
- Video compression, medium or low quality
- Encrypted PIN vault with export
- Bulk restore and 90-day trash
- No ads
Planned price, not on sale. The app is still in development; final pricing, taxes and availability are set by the App Store or Google Play and may differ by region. There is no free trial.
04 — Pricing
Free is a real plan.
Free is a real plan.
Premium is one price.
Most cleaning can be done without paying. Premium removes the daily limits and adds the two jobs that cost the most to run: video compression and the vault.
Free plan, no countdown
- Unlimited duplicate scanning
- 30 deletes and 10 photo compressions per day
- Single-item restore for 30 days
- First session without ads; after that, at most one interstitial a day
In development for iOS and Android. Launch updates are by email — no store listing exists yet.
05 — FAQ
Questions people ask first.
Short answers, including the limits. If something is missing, write to us.
Can I download SlimSweep today?
Not yet. SlimSweep is in development for iOS and Android and has no App Store or Google Play listing. Send an email to [email protected] with the subject “SlimSweep launch updates” and we will write when it ships.
Do my photos leave my device?
No. Scanning, compression and the vault run locally, and there is no account or server-side copy of your library. The app does use Google AdMob for ads and sends anonymous usage counts; neither includes your photos, videos, file names or vault contents. The privacy policy lists every case.
What counts as a duplicate?
A file whose SHA-256 fingerprint matches another’s — the same file stored twice. SlimSweep does not guess at similar shots, bursts or edited versions, so those are left out of the results rather than merged.
What happens when I delete something?
It moves to SlimSweep's trash: 30 days on the free plan, 90 days on premium. Restoring a single item is free; bulk restore is premium. When the trash expires, the app removes the file. One exception: videos larger than 200 MB do not fit in the trash, and the app warns you before removing them. Your phone's own Recently Deleted album may keep another copy for up to 30 days, but that is outside the app and is not a guarantee.
How much space will I get back?
It depends on how many duplicates you have. SlimSweep reports the real free space on the device and the measured difference after a cleanup, not an estimate. If nothing is duplicated, the honest answer is zero.
What is free and what is premium?
Free: unlimited scanning, 30 deletes and 10 photo compressions a day, single-item restore for 30 days, and ads after the first session. Premium: unlimited deletes and compressions, video compression, the encrypted PIN vault, bulk restore and a 90-day trash, with no ads. The planned price is US$19.99 per year.
Does compression reduce quality?
Yes, by design. Photos are capped at a 2048 px long edge and re-encoded at 0.6 quality; video offers medium or low quality and writes an MP4. That is where the savings come from, and the app shows the measured result rather than a promise.
Is the PIN vault private?
The PIN is stretched with PBKDF2, the contents are encrypted with AES-GCM-256, and the key is kept in the system Keychain or Keystore. The vault does not sync and we cannot recover it. If you forget the PIN or uninstall the app, the contents are gone — export anything important first.
Why does a cleaner show ads?
The free plan is supported by a limited ad policy: no ads in the first session, at most one interstitial a day after a successful delete or compression, and a banner on the home screen only. Premium removes them. Ads are served by Google AdMob; production builds will use real ad units, not the test IDs used today.
Which languages will it support?
Twelve at launch: English, Turkish, German, Spanish, French, Italian, Brazilian Portuguese, Dutch, Polish, Swedish, Japanese and Korean. This site is English-only for now.