100% Offline · Zero Cloud

Preserve every shutter,
solid as amber.

Incrementally back up your iPhone photos and files to external USB drives. No internet, no subscription, no compromise.

Built for real-world backup

No cloud, no subscription, no file size limits. Just plug in your drive and go.

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Pure Offline

Writes directly to USB drives, SD cards, or external SSDs. Works without Wi-Fi, cellular, or any internet connection.

Incremental Sync

Only transfers new and changed files. Re-plug your drive weeks later and pick up right where you left off.

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Complete Photo Backup

Photos, videos, and Live Photo .mov files are all preserved as a whole. HEIC, RAW, ProRes — everything.

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Custom Directories

Back up any folder exposed in the Files app — DJI footage, Procreate files, voice memos, anything.

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Streaming Transfer

4 MB chunked read/write keeps memory usage minimal. Safely handles 100 GB+ backups without crashing.

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Private by Design

Zero analytics, zero tracking, zero data collection. Your photos never leave your device and your drive.

Three steps. That's it.

No account setup, no configuration wizard. Just the essentials.

1

Create a sync task

Pick your Photo Library or a custom directory, then choose a destination folder on your external drive.

2

Plug in & scan

Connect your USB drive. AmberTime instantly scans for new files and shows you exactly what needs to sync.

3

Sync & done

One tap to start. Incremental diff means only new files are transferred. Unplug and go.

Engineered for reliability

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FAT32 & APFS & ExFAT Works with all common drive formats. FAT32 4 GB file limit is handled gracefully.
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Resume on reconnect Drive disconnected mid-sync? Files already transferred are safe. Just reconnect and continue.
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Background aware Keeps screen alive during sync. Continues briefly in background when you switch apps.
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Integrity checks Atomic writes with .part staging files. No half-written files on your backup drive.

Your memories, your drive, your control.

Free to download. No in-app purchases. No subscription.

Download on App Store