# Compatible vs AB Compatibility

The clearest difference is price: AB Compatibility at Free against Compatible's $1.99. AB Compatibility also leads on update cadence (every 5 weeks vs every 15 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

AB Compatibility is free to download; Compatible costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Compatible ships an update every 15 months, AB Compatibility every 5 weeks. The most recent releases landed on October 24, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Compatible | AB Compatibility |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 5 weeks** |
| Monetization | Paid | — |
| Size | 16 MB | 42 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Olga Blinova](https://appshunter.io/developer/370630372) | [Alexander Berkovich](https://appshunter.io/developer/1460157188) |

## What reviewers say

### Compatible

[App page](https://appshunter.io/ios/app/compatible-food/id1295683398)

This app provides a visual guide to food compatibility based on Herbert M. Shelton's separate food method. It helps users understand which food combinations are best, valid, or incompatible.

**Highlights:** Search food by product, Visual compatibility indicators (green, yellow, red), Based on Herbert M. Shelton's method, Data sourced from 'Food Combining Made Easy', Proper food combining guidance

**Features:** Vision Pro support

**In-app purchases:** none


### AB Compatibility

[App page](https://appshunter.io/ios/app/ab-compatibility/id1642034607)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Compatible free?

Compatible costs $1.99, with no in-app purchases.

### Is AB Compatibility free?

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

### Do Compatible or AB Compatibility have ads?

Neither Compatible nor AB Compatibility shows ads.

### Which is updated more often, Compatible or AB Compatibility?

Compatible ships an update every 15 months, and AB Compatibility every 5 weeks. Most recently, Compatible was updated on October 24, 2026 and AB Compatibility on October 6, 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.*