The mobile app for S3-compatible storage with true background sync, in-app file streaming, and optional end-to-end encryption. iOS & Android.
Works with your storage provider
Your files connect directly to your server. No cloud proxy, no intermediary. Your data never touches our infrastructure.
Platform-native sync using Android WorkManager and iOS BGTaskScheduler. Configurable intervals from 15 minutes to 24 hours. Runs reliably even when the app is closed.
ProView images, play videos, read documents and code files directly via HTTP range requests and presigned URLs. No need to download the full file.
Optional client-side AES-256-GCM encryption with PBKDF2 key derivation (600K iterations). Files are encrypted before they leave your device. The passphrase never leaves your phone.
ProConnect directly to your S3-compatible server with support for custom ports, self-signed certificates, and both path-style and virtual-hosted addressing.
Server credentials stored in iOS Keychain and Android EncryptedSharedPreferences. Optional biometric (fingerprint/face) protection. Never stored in the cloud.
Only sync what changed. ETag comparison and checksum verification detect modified files. Supports upload, download, or bidirectional sync with conflict resolution.
Connect to multiple S3-compatible servers across different providers. Switch between servers instantly. Per-server sync settings and credentials.
Pro: 5 serversKeep files in sync across all your phones and tablets. Device management dashboard with push notifications for sync status updates via APNs and FCM.
LRU-based file cache (configurable, up to 2GB default) for fast previews and offline access. Automatic cleanup keeps your device storage in check.
Wi-Fi only mode, require charging, battery-aware scheduling. Set sync intervals from 15 minutes to daily. Your sync, your rules.
When files change on both sides, choose your strategy: local wins, remote wins, keep both copies, or decide manually per conflict.
Real-time sync completion and error alerts via Apple Push Notifications (iOS) and Firebase Cloud Messaging (Android). Stay informed without opening the app.
Stream and preview files directly from your server without downloading them first.
JPG, PNG, GIF, WebP, BMP, SVG, HEIC, HEIF
MP4, MOV, AVI, MKV, WebM, M4V, 3GP
PDF, DOC, DOCX, XLS, XLSX, PPT, PPTX
TXT, MD, JSON, XML, CSV, YAML, JS, TS, Python, Go, Rust, Swift, Kotlin, and more
Download from the App Store, Google Play, or GitHub Releases.
Choose from 8 supported providers. Enter your endpoint and credentials. Hit the test button to verify.
Navigate buckets and folders. Preview images, stream videos, read documents and code — all in-app.
Set your interval and constraints. minSync handles the rest — your phone backs up while you sleep.
Your files never pass through our servers. We designed minSync so you don't have to trust us.
Your files transfer directly between your phone and your server. Our backend only handles auth and sync metadata — never your file data.
Optional client-side encryption with PBKDF2 key derivation (600K iterations). Encryption keys are derived from your passphrase on-device and never transmitted.
Lock the app with Face ID, Touch ID, or fingerprint. Credential access requires biometric verification.
iOS Keychain and Android EncryptedSharedPreferences. Credentials are hardware-backed and isolated per server.
Connect to private servers with self-signed TLS certificates. Full SSL/TLS support with custom port configuration.
Every sync operation verifies file integrity via ETag and checksum comparison. Multipart upload support for files over 5MB.
Start free. Upgrade when you need more. No subscriptions required — lifetime option available.
or $9.99/year subscription
BEST VALUE: Lifetime for $6.99
| Feature | Free | Pro | Enterprise |
|---|---|---|---|
| Server connections | 1 | 5 | Unlimited |
| Devices | 2 | 10 | Unlimited |
| File browsing & streaming | ✓ | ✓ | ✓ |
| 30+ file format viewers | ✓ | ✓ | ✓ |
| Smart file caching | ✓ | ✓ | ✓ |
| 8 storage providers | ✓ | ✓ | ✓ |
| Biometric lock | ✓ | ✓ | ✓ |
| Background sync | ✗ | ✓ | ✓ |
| E2E encryption | ✗ | ✓ | ✓ |
| Push notifications | ✗ | ✓ | ✓ |
| License key activation | ✗ | ✗ | ✓ |
Download minSync and start syncing with your S3-compatible storage today. Available on iOS and Android.