# Comtarsia Authenticator vs TOTP Authenticator

The clearest difference is in-app purchases: Comtarsia Authenticator at none against TOTP Authenticator's 4. Comtarsia Authenticator also leads on iOS requirement (12.4 vs 15.0). TOTP Authenticator's advantage is update cadence (every 11 days vs every 63 months) and device support (5 vs 3). On price and ads there is nothing between them.

Both are free to download. TOTP Authenticator sells 4 in-app purchases, starting at $5.99 per 7 days. Comtarsia Authenticator asks for nothing beyond the download.

Comtarsia Authenticator ships an update every 63 months, TOTP Authenticator every 11 days. The most recent releases landed on October 12, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Comtarsia Authenticator | TOTP Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (174 ratings)](https://appshunter.io/ios/app/totp-authenticator/id1625641322/reviews)** |
| Number of ratings | — | **174** |
| Positive reviews | — | 66.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 63 months | **Every 11 days** |
| Monetization | — | Free with in-app purchases |
| Size | 2 MB | 24 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Comtarsia IT Services GmbH](https://appshunter.io/developer/1538437597) | [Sparrow Code LTD](https://appshunter.io/developer/1617623165) |

## What reviewers say

### Comtarsia Authenticator

[App page](https://appshunter.io/ios/app/comtarsia-authenticator/id1538437355)

**Features:** macOS Compatibility

**In-app purchases:** none


### TOTP Authenticator

[App page](https://appshunter.io/ios/app/totp-authenticator/id1625641322)

This app generates time-based one-time passwords (TOTP) for enhanced account security. It supports two-factor authentication (2FA) by providing 6-digit codes required by many websites and services for login. The app includes extensive tutorials to guide users through setting up 2FA with various platforms.

**Highlights:** Generates 6-digit TOTP codes, Supports two-factor authentication (2FA), QR code scanning for setup, Manual secret key entry, Over 100 step-by-step setup tutorials, Privacy focused

**Features:** Apple Watch app

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TOTP OTP Codes (1 week) | $5.99 | per 7 days |
| TOTP OTP Codes (1 month) | $9.99 | per month |
| TOTP OTP Codes (1 year) | $59.99 | per year |
| Unlimited TOTP OTP Codes | $79.99 | one-time |


## Frequently asked questions

### Is Comtarsia Authenticator free?

Comtarsia Authenticator is free to download, with no in-app purchases.

### Is TOTP Authenticator free?

TOTP Authenticator is free to download, with in-app purchases available.

### Do Comtarsia Authenticator or TOTP Authenticator have ads?

Neither Comtarsia Authenticator nor TOTP Authenticator shows ads.

### Which is updated more often, Comtarsia Authenticator or TOTP Authenticator?

Comtarsia Authenticator ships an update every 63 months, and TOTP Authenticator every 11 days. Most recently, Comtarsia Authenticator was updated on October 12, 2026 and TOTP Authenticator on October 13, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*