# TOTP Authenticator vs Otpkey Authenticator

The clearest difference is rating: TOTP Authenticator at 4.8 against Otpkey Authenticator's 1.0. TOTP Authenticator also leads on update cadence (every 9 days vs every 2 months) and ratings volume (167 vs 2). Otpkey Authenticator's advantage is in-app purchases (none vs 4) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

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

TOTP Authenticator holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: TOTP Authenticator has 167 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 65% of TOTP Authenticator's written reviews are positive against 50% of Otpkey Authenticator's.

TOTP Authenticator ships an update every 9 days, Otpkey Authenticator every 2 months. The most recent releases landed on September 30, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | TOTP Authenticator | Otpkey Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (167 ratings)](https://appshunter.io/ios/app/totp-authenticator/id1625641322/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/otpkey-authenticator/id6444123920/reviews) |
| Number of ratings | **167** | 2 |
| Positive reviews | **65.3% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 24 MB | 22 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod, Mac, Apple Watch | iPhone, iPad, iPod, Mac, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Sparrow Code LTD](https://appshunter.io/developer/1617623165) | [Certchip Corp](https://appshunter.io/developer/1652474819) |

## 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 |


### Otpkey Authenticator

[App page](https://appshunter.io/ios/app/otpkey-authenticator/id6444123920)

Enhance your online security with multi-factor authentication. This app generates one-time passwords for various services, even offline, and supports standard TOTP/HOTP protocols. It offers features like QR code scanning, auto-hiding codes, and biometric authentication.

**Highlights:** Multi-factor authentication, Offline OTP generation, QR code scanning and export, Biometric authentication support, Clipboard code copying, Widget and Watch App support

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is TOTP Authenticator free?

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

### Is Otpkey Authenticator free?

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

### Which has better reviews, TOTP Authenticator or Otpkey Authenticator?

TOTP Authenticator is rated higher. TOTP Authenticator averages 4.8 out of 5 from 167 ratings, while Otpkey Authenticator averages 1.0 from 2 ratings.

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

Neither TOTP Authenticator nor Otpkey Authenticator shows ads.

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

TOTP Authenticator ships an update every 9 days, and Otpkey Authenticator every 2 months. Most recently, TOTP Authenticator was updated on September 30, 2026 and Otpkey Authenticator on October 2, 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.*