Keylet vs Authenticator App
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Keylet
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Keylet is the privacy-first authenticator that fills your 2FA codes right above the keyboard โ without opening the app, and without ever showing a code on screen. From the makers of Authenticator+ โ and switching is effortless. Import your accounts in seconds, straight from Authenticator+, Google Authenticator, Authy, Microsoft, 1Password and more โ 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 โข AutoFill, done right โ tap a verification-code field and Keylet offers the right code. It fills it; it never displays it. Nothing to shoulder-surf. โข Import in seconds โ from Authenticator+, Google Authenticator, Authy, Microsoft, 1Password, a backup file, or a screenshot. No second device required. โข Multiple vaults โ keep work and personal completely separate, each encrypted on its own. โข Encrypted sharing โ hand a code to someone you trust over end-to-end encryption, with a self-destructing expiry. โข Backed up, safely โ automatic daily encrypted backups on your device, plus password-protected export. No cloud needed. โข Yours to organise โ biometric lock per account, categories, recovery keys and home-screen widgets. โข 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
Authenticator App
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Authenticator App: 2FA, MFA generates secure one-time codes for any account โ instantly, offline, and protected by your Face ID or Touch ID. Add any account manually in seconds and get a fresh 6-digit TOTP or HOTP code every 30 seconds. No SMS. No internet connection required. No third party ever sees your codes. WHAT THE APP DOES โข Generates TOTP & HOTP codes (RFC 6238 / RFC 4226) for any service that supports two-factor authentication โข Works with Google, Microsoft, Apple ID, Amazon, GitHub, Dropbox, Slack, Facebook, and thousands more โข Add accounts via QR code or manual key entry โข Stores all accounts in one organised list with custom names for easy navigation โข Refreshes codes automatically every 30 seconds with a visible countdown timer โข Locks the app behind Face ID or Touch ID so only you can access your codes โข Runs fully offline โ codes are generated on-device, never sent to a server BACKUP & RESTORE Encrypted backup saves all your accounts to the cloud. If you switch or lose your phone, restore every account to a new device in one tap. Backup is end-to-end encrypted โ your keys never leave your device. SWITCHING FROM ANOTHER APP Add your existing accounts manually using the secret keys from each service. Takes a few minutes and keeps access to every account intact. PRIVACY AND SECURITY Authenticator: 2FA Auth, MFA complies with stringent privacy standards, ensuring that your data remains safe and confidential. For more information, please review our Privacy Policy at https://authgreen.com/privacy SUBSCRIPTION AND TERMS Authenticator App: 2FA, MFA is a subscription-based app with a free trial period. Subscribe for unlimited access with no commitment, and you can cancel anytime. Manage your subscription and disable auto-renewal in iTunes' Account Settings after purchase. Read our Terms of Service at https://authgreen.com/termsofuse
Screenshots
Verdict
Keylet and Authenticator App are too close to call on the numbers: across 5 compared parameters โ price, ads, in-app purchases and device support among them โ neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Keylet sells 3 in-app purchases, starting at $2.99 per month and Authenticator App sells 2 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.
| Parameter | Keylet | Authenticator App |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days | โ |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, Apple Watch โ better | iPhone |
| Requires iOS | 16.4 | 16.0 โ better |
| Further details โ not scored | ||
| Size | 108 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Studio Fifteen | Essa Studio |
In-app purchases
Keylet
- Keylet Pro โ Monthly$2.991 Month
- Keylet Pro โ Yearly$12.991 Year
- Keylet Pro โ Lifetime$44.99
Authenticator App
- Auth Premium Weekly3 Days trial$6.997 Days
- Auth Premium Annually$49.991 Year





