# A/B Buddy vs Authman 2FA

The clearest difference is in-app purchases: Authman 2FA at none against A/B Buddy's 1. Authman 2FA also leads on update cadence (every 10 days vs every 8 months). A/B Buddy's advantage is iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. A/B Buddy sells 1 one-off in-app purchase. Authman 2FA asks for nothing beyond the download.

A/B Buddy ships an update every 8 months, Authman 2FA every 10 days. The most recent releases landed on October 7, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | A/B Buddy | Authman 2FA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/ab-buddy/id1446129030/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 2 MB | 22 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Evan Miller](https://appshunter.io/developer/329911740) | [Allstars Inc.](https://appshunter.io/developer/1318672049) |

## What reviewers say

### A/B Buddy

[App page](https://appshunter.io/ios/app/ab-buddy/id1446129030)

This app helps you design A/B experiments by calculating the precise number of participants needed for statistically valid results. It uses power analysis to determine the optimal sample size, ensuring your experiment is neither too short nor too long.

**Highlights:** Sample size calculation for A/B tests, Power analysis formula, Adjustable baseline conversion rate, Minimum Detectable Effect setting, Shareable calculation links, Privacy-focused data handling

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Features | $8.99 | one-time |


### Authman 2FA

[App page](https://appshunter.io/ios/app/authman-2fa/id6502499482)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is A/B Buddy free?

A/B Buddy is free to download, with in-app purchases available.

### Is Authman 2FA free?

Authman 2FA is free to download, with no in-app purchases.

### Do A/B Buddy or Authman 2FA have ads?

Neither A/B Buddy nor Authman 2FA shows ads.

### Which is updated more often, A/B Buddy or Authman 2FA?

A/B Buddy ships an update every 8 months, and Authman 2FA every 10 days. Most recently, A/B Buddy was updated on October 7, 2026 and Authman 2FA on September 28, 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.*