# Rio: Food Intolerance App — Histamine, FODMAP & More

> Histamine, FODMAP & More (iPhone/iPad app by Anastasiia Kirzhanova.)

- Source: https://appshunter.io/ios/app/rio-food-intolerance-app/id6791933098 (this page in markdown: same URL + `.md`)
- Developer: [Anastasiia Kirzhanova](https://appshunter.io/developer/6786693106)
- Category: Health & Fitness, Food & Drink
- Price: Free
- Age rating: 17+
- Requires: iOS 18.0 · 13 MB
- Languages: American English
- Released: 2026-08-27
- Data updated: 2026-09-13
- User reviews in markdown: https://appshunter.io/ios/app/rio-food-intolerance-app/id6791933098/reviews.md

## What is Rio?

Find the foods that work for your body, in one list matched to everything you react to.

Seven main triggers across 500+ whole foods, with levels based on published research: Histamine, FODMAPs, Lactose, Gluten, Salicylates, Oxalates and Sulfur.

HOW IT WORKS
• Set your triggers and decide how strict to be with each one: avoid, limit, watch or eat freely.
• Know which chemicals are in whole foods and which of them work for you.
• See iron, magnesium and 20+ nutrients in the foods you tolerate.
• Match any food to how your body really reacts.
• Look back on how your food list changed each month.

Free to download and use.

Rio is a lifestyle and educational app, not a medical device. It doesn't diagnose, treat, cure, or prevent any illness, and it's never a substitute for professional medical advice. If you suspect a food intolerance or plan major changes to your diet, talk to a qualified healthcare professional first.


## Version history (last 5 releases)

### 1.0.4 — 2026-09-10

Bug fixes and overall improvements.

### 1.0.3 — 2026-09-03

Comfort tolerance levels can now be set for specific food groups: nightshades, nuts, caffeine-containing foods and more.

### 1.0.2 — 2026-08-30

Bug fixes and small improvements.

### 1.0.1 — 2026-08-28

Bug fixes.

### 1.0 — 2026-08-27

No release notes.

## More apps by Anastasiia Kirzhanova

- [Leben in Deutschland — Done!](https://appshunter.io/ios/app/leben-in-deutschland-done/id6786692650)

All apps by Anastasiia Kirzhanova: https://appshunter.io/developer/6786693106

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-13.*