OTP Authenticator vs OETH
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OTP Authenticator
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Swiss SafeLab OTP Authenticator is a free strong one-time password app fully compliant to the mOTP specification (http://motp.sourceforge.net/). mOTP is based on time synchronized one-time-passwords. Swiss SafeLab OTP Authenticator Features: - MUI Support (English, German, Swiss German, French, Italian, Spanish) - multiple accounts with individual mOTP Secret and bookmark - supports bookmarks - define mOTP Secret by - manual mOTP Secret input - shaking the device - random seed input - supports 4 digit PIN (as by specification) - supports alphanumeric PIN - permanently hide mOTP Secret after profile creation - displays current epoch time, local time and local time zone - copy-to-clipboard support - option to generate new mOTPs without the requirement of entering PIN again Swiss SafeLab OTP Authenticator is supported by our pure software-based two factor authentication solution Swiss SafeLab M.ID Suite (https://www.swiss-safelab.com/mid/).
OETH
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OETH. New Authentication for All. The OETH App, in conjunction with the OETH Identity, simplifies strong authentication for enterprises, enhancing the passwordless SSO experience. Key features: - Scan QR code to enable passwordless authentication. - Passwordless authentication methods support biometric or patternlock. - Activate passwordless authentication by scanning a QR code or receiving a push notification. - Authentication is certified by FIDO Alliance. * To activate OETH Identity, please contact OETH customer support. * We recommend installing mobile antivirus software to enhance the security of your device. To ensure the safety of your data, please do not use jailbroken (rooted/JB) or similarly modified mobile devices.
Screenshots
Verdict
The clearest difference is iOS requirement: OTP Authenticator at 7.0 against OETH's 13.0. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
OTP Authenticator ships an update every 5 months, OETH every 3 months. The most recent releases landed on September 20, 2026 and October 6, 2026 respectively.
| Parameter | OTP Authenticator | OETH |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 7.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 16 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Swiss SafeLab GmbH | WebComm Technology Co., Ltd. |
In-app purchases
OTP Authenticator
No in-app purchases
OETH
No in-app purchases









