Comparison

OTP Authenticator vs OETH

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

OTP Authenticator

Features
Read full description

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/).

About

OETH

Features
Read full description

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

OTP Authenticator4 screens
OETH4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

Scorecard1 real difference · 5 level
OTP Authenticator versus OETH: the parameters behind the verdict, then further details
ParameterOTP AuthenticatorOETH
PriceFreeFree
Update frequencyEvery 5 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS7.0 — better13.0
Further details — not scored
Size16 MB25 MB
Age rating4+4+
DeveloperSwiss SafeLab GmbHWebComm Technology Co., Ltd.

In-app purchases

None

OTP Authenticator

No in-app purchases

None

OETH

No in-app purchases

Questions

Is OTP Authenticator free?
OTP Authenticator is free to download, with no in-app purchases.
Is OETH free?
OETH is free to download, with no in-app purchases.
Do OTP Authenticator or OETH have ads?
Neither OTP Authenticator nor OETH shows ads.
Which is updated more often, OTP Authenticator or OETH?
OTP Authenticator ships an update every 5 months, and OETH every 3 months. Most recently, OTP Authenticator was updated on September 20, 2026 and OETH on October 6, 2026.

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