# RheumaHelper vs Ontol

The clearest difference is update cadence: Ontol at every 9 days against RheumaHelper's every 2 months. Ontol also leads on monetization model (free vs ad-supported) and iOS requirement (15.1 vs 18.0). RheumaHelper's advantage is ratings volume (130 vs 5). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Ontol holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: RheumaHelper has 130 ratings behind it against 5, so its average is the more settled of the two.

RheumaHelper ships an update every 2 months, Ontol every 9 days. The most recent releases landed on October 23, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | RheumaHelper | Ontol |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (130 ratings)](https://appshunter.io/ios/app/rheumahelper/id581905758/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/ontol/id6448972926/reviews)** |
| Number of ratings | **130** | 5 |
| Positive reviews | 58.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | Ad-supported | **Free** |
| Size | 20 MB | 53 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Modra Jagoda, spletno oblikovanje in razvoj mobilnih aplikacij d.o.o.](https://appshunter.io/developer/546792104) | [Tesser Inc.](https://appshunter.io/developer/1076266522) |

## What reviewers say

### RheumaHelper

[App page](https://appshunter.io/ios/app/rheumahelper/id581905758)

This medical tool offers rheumatologists a comprehensive set of disease activity calculators and classification criteria for daily use. It provides verified content based on published research and is designed for easy reference on mobile devices.

**Highlights:** Disease activity calculators, Classification criteria, Verified medical content, Award-winning tool, Easy mobile reference

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Ontol

[App page](https://appshunter.io/ios/app/ontol/id6448972926)

Decode complex medical reports with ease. Upload or snap a picture of your MRI, CT, or histopathology results to receive clear explanations of medical jargon and abbreviations. This tool aids understanding but should not replace professional medical advice.

**Highlights:** Medical jargon explanation, AI-powered analysis, Supports MRI, CT, histopathology, OCR and translation, Clearer understanding of reports

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RheumaHelper free?

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

### Is Ontol free?

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

### Which has better reviews, RheumaHelper or Ontol?

Ontol is rated higher. RheumaHelper averages 4.8 out of 5 from 130 ratings, while Ontol averages 5.0 from 5 ratings.

### Do RheumaHelper or Ontol have ads?

Neither RheumaHelper nor Ontol shows ads.

### Which is updated more often, RheumaHelper or Ontol?

RheumaHelper ships an update every 2 months, and Ontol every 9 days. Most recently, RheumaHelper was updated on October 23, 2026 and Ontol on October 10, 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.*