Free for macOS and iOS
One Step Ahead protects your most sensitive data — seed phrases, passwords, documents — using strong encryption and Smart Split. No account. No internet. No cloud. Ever.
Scan for iOS
Free · No account required · macOS and iOS
Available on Every Apple Device
One download. Covers macOS and iOS. Works entirely offline on both.
macOS
- All 5 data types — wallets, logins, text, images, PDFs
- QR code fragments and binary .s32 file fragments
- Drag and drop reconstruction for binary files
- Camera scanning for QR fragments
- Download reconstructed files to your machine
- Apple Silicon and Intel supported
iOS
- 3 data types — wallets, logins, text
- Built-in protection and recovery
- QR code fragments — scan any 2 to recover
- BIP-39 word search and validation
- Minimum iOS 17
- iPhone and iPad
The App in Action
Clean. Simple. Designed to be used once and trusted forever.
Enter your seed phrase on Mac
Open the app and enter your BIP-39 seed phrase. Each word is validated against the full BIP-39 word list as you type. Store up to 4 wallets per session. Nothing is saved to disk.
BIP-39 search on iPhone
Can't remember the exact word? Search the full BIP-39 list instantly on your iPhone. Find any word by name or by its index number. No internet needed — the entire word list is built in.
Clean entry. No clutter.
The entry view is deliberately simple. Enter a wallet name and your seed words. The app shows which words are filled and which are still needed. One button splits and encrypts everything.
Physical backup option
For maximum resilience, print your QR fragments and seal them in envelopes. Store each in a separate location. No device needed to hold them — just paper, stored safely apart.
Note: this image will be updated to reflect the current v2 encrypted QR output.
Five Data Types. One App.
Everything you need to protect. Nothing you don't.
Crypto Wallets
BIP-39 seed phrases validated word by word. Stored as index numbers — language-agnostic and unambiguous. Supports 12 and 24 word phrases.
Login Credentials
Usernames, passwords, and access codes. Split and encrypted so no single fragment reveals anything useful on its own.
Plain Text
Private notes, recovery codes, API keys, or any sensitive text you need to protect without relying on a cloud service.
Images
JPG and PNG files encrypted and split into binary .s32 fragments. Reconstructed on macOS to the exact original format.
PDF Documents
Confidential documents split and encrypted as .s32 binary files. Integrity verified explicitly on reconstruction — any corruption detected immediately.
Fully Offline
No internet connection. No account. No cloud. All cryptographic operations happen in memory and are discarded after use. Nothing is logged or cached.
Built on Transparent Security
The full cryptographic design is published in the White Paper. The reconstruction method is open — anyone can build a recovery tool from the public spec. One Step Ahead is never a single point of failure for your recovery.
Download Free
Available on the App Store for macOS and iOS. No subscription. No account. No internet required.
Scan to download on iOS