# TOTP Authenticator vs LinOTP Authenticator

The clearest difference is in-app purchases: LinOTP Authenticator at none against TOTP Authenticator's 4. LinOTP Authenticator also leads on iOS requirement (13.0 vs 15.0). TOTP Authenticator's advantage is update cadence (every 9 days vs every 8 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. LinOTP Authenticator asks for nothing beyond the download.

TOTP Authenticator ships an update every 9 days, LinOTP Authenticator every 8 months. The most recent releases landed on September 30, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | TOTP Authenticator | LinOTP Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (167 ratings)](https://appshunter.io/ios/app/totp-authenticator/id1625641322/reviews)** | — |
| Number of ratings | **167** | — |
| Positive reviews | 65.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 8 months |
| Monetization | Free with in-app purchases | — |
| Size | 24 MB | 24 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod, Mac, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sparrow Code LTD](https://appshunter.io/developer/1617623165) | [KeyIdentity GmbH](https://appshunter.io/developer/571941070) |

## What reviewers say

### 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 |


### LinOTP Authenticator

[App page](https://appshunter.io/ios/app/linotp-authenticator/id6450118468)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TOTP Authenticator free?

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

### Is LinOTP Authenticator free?

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

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

Neither TOTP Authenticator nor LinOTP Authenticator shows ads.

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

TOTP Authenticator ships an update every 9 days, and LinOTP Authenticator every 8 months. Most recently, TOTP Authenticator was updated on September 30, 2026 and LinOTP Authenticator on September 27, 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.*