# A/B Buddy vs Wi

The clearest difference is in-app purchases: Wi at none against A/B Buddy's 1. Wi also leads on update cadence (weekly vs every 8 months). A/B Buddy's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price and ads there is nothing between them.

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

A/B Buddy ships an update every 8 months, Wi weekly. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | A/B Buddy | Wi |
| --- | --- | --- |
| 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 | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 2 MB | 3 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Evan Miller](https://appshunter.io/developer/329911740) | [VIBE AI, MCHJ](https://appshunter.io/developer/1758067993) |

## 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 |


### Wi

[App page](https://appshunter.io/ios/app/wi-fi-3d/id6821089781)

**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 Wi free?

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

### Do A/B Buddy or Wi have ads?

Neither A/B Buddy nor Wi shows ads.

### Which is updated more often, A/B Buddy or Wi?

A/B Buddy ships an update every 8 months, and Wi weekly. Most recently, A/B Buddy was updated on October 24, 2026 and Wi on October 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.*