FolderSure: Verify SD Backups
by Karolis Valatka
· Utilities
· $4.99
On the App Store since July 2026
· Data updated
FolderSure: Verify SD Backups is made and published by Karolis Valatka. AppBrain is an independent app data site and isn't affiliated with Karolis Valatka. The app name, icon, screenshots and description belong to Karolis Valatka and are shown as published on the App Store.
AppBrain's verdict
- Last updated
- July 29, 2026
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Releases
Updates seen on the App Store- Version
- 1.0
- Launched
- July 2026
No changelog data
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Technology
Found in the app by AppBrain- Price
- $4.99
- App size
- 1.14 MB
- Content rating
- Everyone
Technologies used by FolderSure: Verify SD Backups
About the app and developer
About FolderSure: Verify SD Backups
FolderSure: Verify SD Backups is an utilities app developed by Karolis Valatka.
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The app has no ratings yet.
App Information
FolderSure: Verify SD Backups costs $4.99. The app size is 1.14 MB. The latest version available is 1.0. The last update was on July 29, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since July 2026.
Developer information for Karolis Valatka
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Store listing
By Karolis Valatka, from the App Store
Screenshots by Karolis Valatka, from the the App Store listing
Description by Karolis Valatka Written by the developer, not by AppBrain. Click to read.
A finished progress bar tells you the copy ended. It doesn't tell you the copy is correct.
FolderSure checks your backup against the original, file by file, byte by byte, using streaming SHA-256 right on your iPad or iPhone. Plug in the card and the SSD, pick the two folders, and know for certain that every photo and every clip made it across intact.
One damaged RAW file in 400 GB is invisible until the day you need it. FolderSure finds it and tells you its name.
What it does:
Verify. Compares source and destination with real checksums. Missing, changed and unreadable files are listed by name, not hidden in a summary.
Verified Copy. FolderSure copies the files itself, then reads every byte back from the destination before calling a file done. The safest way to offload a card.
Guarded Erase. After a fully verified pass you can delete the verified files from the card. You have to type ERASE, confirm, and the app re-checks every file at the moment of deletion. If anything changed since the pass, it refuses. It never touches files it didn't verify.
Re-Verify. Months later, check a drive against a saved manifest and catch bit rot before it costs you a shoot.
Resume. Cable pulled or app closed mid-scan? Continue where it stopped. An interrupted job is never reported as verified.
Proof you can keep. Export a PDF receipt, CSV manifest, JSON, or a .sha256 checksum file your Mac verifies with a single shasum command.
The fine print, in plain words: one-time purchase, no subscription, no account, no ads. Everything runs on your device and the app makes zero network requests. Works with SD cards, USB-C SSDs, USB sticks and any folder the Files app can open. Choose SHA-256 or the faster xxHash64.
FolderSure never modifies your source. Verification only reads. The only thing that can delete files is the erase step you unlock yourself after a verified pass.
App Review notes (reviewer field):
FolderSure needs no account, login or network connection. Everything runs on-device.
To test without an external drive: in the Files app, create two folders under On My iPad, put a few files in the first and copy them into the second. In FolderSure pick them as Source and Destination and tap Verify Copy. To see failure detection, edit or delete one file in the destination folder and verify again.
The erase feature only appears after a 100% verified pass and requires typing ERASE plus a confirmation dialog. It deletes only the verified files in the user-chosen source folder.
The app makes zero network requests. No analytics, no tracking.
FolderSure checks your backup against the original, file by file, byte by byte, using streaming SHA-256 right on your iPad or iPhone. Plug in the card and the SSD, pick the two folders, and know for certain that every photo and every clip made it across intact.
One damaged RAW file in 400 GB is invisible until the day you need it. FolderSure finds it and tells you its name.
What it does:
Verify. Compares source and destination with real checksums. Missing, changed and unreadable files are listed by name, not hidden in a summary.
Verified Copy. FolderSure copies the files itself, then reads every byte back from the destination before calling a file done. The safest way to offload a card.
Guarded Erase. After a fully verified pass you can delete the verified files from the card. You have to type ERASE, confirm, and the app re-checks every file at the moment of deletion. If anything changed since the pass, it refuses. It never touches files it didn't verify.
Re-Verify. Months later, check a drive against a saved manifest and catch bit rot before it costs you a shoot.
Resume. Cable pulled or app closed mid-scan? Continue where it stopped. An interrupted job is never reported as verified.
Proof you can keep. Export a PDF receipt, CSV manifest, JSON, or a .sha256 checksum file your Mac verifies with a single shasum command.
The fine print, in plain words: one-time purchase, no subscription, no account, no ads. Everything runs on your device and the app makes zero network requests. Works with SD cards, USB-C SSDs, USB sticks and any folder the Files app can open. Choose SHA-256 or the faster xxHash64.
FolderSure never modifies your source. Verification only reads. The only thing that can delete files is the erase step you unlock yourself after a verified pass.
App Review notes (reviewer field):
FolderSure needs no account, login or network connection. Everything runs on-device.
To test without an external drive: in the Files app, create two folders under On My iPad, put a few files in the first and copy them into the second. In FolderSure pick them as Source and Destination and tap Verify Copy. To see failure detection, edit or delete one file in the destination folder and verify again.
The erase feature only appears after a 100% verified pass and requires typing ERASE plus a confirmation dialog. It deletes only the verified files in the user-chosen source folder.
The app makes zero network requests. No analytics, no tracking.