OTP Authenticator vs GCP Login
Price, ratings, monetisation and update history for both apps, side by side β 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/).
GCP Login
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--- GCP Login Application generates one time login passwords for Grupa Polsat in accordance with the mOTP. It allows for 2 methods of profile provisioning: 1. Manual β you need to manually rewrite Secret from mobile app to web application to map profile to domain account 2. Using QR code β after scanning the QR code from web application profile connected with specific domain account is automatically created Application in version 1.0 do not support HOTP i TOTP standards.
Screenshots
Verdict
The clearest difference is update cadence: OTP Authenticator at every 5 months against GCP Login's every 19 months. OTP Authenticator also leads on iOS requirement (7.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· 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, GCP Login every 19 months. The most recent releases landed on September 20, 2026 and October 16, 2026 respectively.
| Parameter | OTP Authenticator | GCP Login |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months β better | Every 19 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 7.0 β better | 13.0 |
| Further details β not scored | ||
| Size | 16 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Swiss SafeLab GmbH | Polkomtel Sp. z o.o. |
In-app purchases
OTP Authenticator
No in-app purchases
GCP Login
No in-app purchases
Questions
Is OTP Authenticator free?
Is GCP Login free?
Do OTP Authenticator or GCP Login have ads?
Which is updated more often, OTP Authenticator or GCP Login?
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