One Time vs Keylet
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
One Time
Securely store and manage your two-factor authentication tokens using iCloud Keychain. This privacy-focused client supports various token types and generation methods, syncing seamlessly across your Apple devices without needing an extra account.
- Store tokens in iCloud Keychain
- Add tokens via QR scanner or URL
- Supports TOTP and HOTP
- Syncs across iCloud devices
- Open source and privacy-focused
- Search tokens by issuer or account
Read full descriptionHide full description
One-Time Password client. Store your software Two-Factor Authentication tokens securely in iCloud Keychain. No additional account required, sync between your iCloud devices. This app was designed with privacy and security in mind. The app is open source at https://github.com/leptos-null/OneTime and never connects to the internet. Features: - Add Software Two Factor Tokens using: - QR scanner in-app - Open otpauth URL - QR codes in saved images - Drag-and-drop QR code into app - Manually enter generator configuration - Store tokens in iCloud Keychain - Copy current factor code using long press or 3D Touch - Edit the name of the issuer and account of tokens - Search tokens by issuer or account name - Supports tokens of: - 1 to 10 digits - SHA1, MD5, SHA256, SHA384, SHA512, and SHA224 hashing algorithms - Time based factor with any time step/period (TOTP) - Counter based factor (HOTP)
Keylet
Read full descriptionHide full description
Keylet is the privacy-first authenticator that fills your 2FA codes right above the keyboard — without opening the app, and without ever showing a code on screen. From the makers of Authenticator+ — and switching is effortless. Import your accounts in seconds, straight from Authenticator+, Google Authenticator, Authy, Microsoft, 1Password and more — or even from a single screenshot, with no second device needed. Your secrets never leave your phone. Everything lives in an encrypted, zero-knowledge vault (AES-256-GCM) that only you can open. No account. No cloud. No tracking. No ads. WHY KEYLET • AutoFill, done right — tap a verification-code field and Keylet offers the right code. It fills it; it never displays it. Nothing to shoulder-surf. • Import in seconds — from Authenticator+, Google Authenticator, Authy, Microsoft, 1Password, a backup file, or a screenshot. No second device required. • Multiple vaults — keep work and personal completely separate, each encrypted on its own. • Encrypted sharing — hand a code to someone you trust over end-to-end encryption, with a self-destructing expiry. • Backed up, safely — automatic daily encrypted backups on your device, plus password-protected export. No cloud needed. • Yours to organise — biometric lock per account, categories, recovery keys and home-screen widgets. • No ads. Ever. Unlimited accounts, free. Keylet keeps your second factor exactly where it belongs: in your hands, encrypted, and out of sight. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://studiofifteen.nl/app/keylet/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: One Time at none against Keylet's 3. One Time also leads on device support (5 vs 2) and iOS requirement (10.0 vs 16.4). Keylet's advantage is update cadence (every 5 days vs every 7 months). On price and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Keylet sells 3 in-app purchases, starting at $2.99 per month. One Time asks for nothing beyond the download.
One Time ships an update every 7 months, Keylet every 5 days. Both last shipped on September 17, 2026.
| Parameter | One Time | Keylet |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (7 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 7 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Mac, Apple Watch — better | iPhone, Apple Watch |
| Requires iOS | 10.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 2 MB | 108 MB |
| Age rating | 4+ | 4+ |
| Developer | Lateef Sanford | Studio Fifteen |
In-app purchases
One Time
No in-app purchases
Keylet
- Keylet Pro – Monthly$2.991 Month
- Keylet Pro – Yearly$12.991 Year
- Keylet Pro – Lifetime$44.99









