# OntoFit vs Runtune

The clearest difference is update cadence: Runtune at every 4 days against OntoFit's every 3 months. OntoFit's advantage is iOS requirement (9.0 vs 26.5). On price, ads, in-app purchases and device support there is nothing between them.

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

OntoFit ships an update every 3 months, Runtune every 4 days. The most recent releases landed on October 19, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | OntoFit | Runtune |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (5 ratings)](https://appshunter.io/ios/app/ontofit/id1453150726/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 28.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 125 MB | 9 MB |
| Requires iOS | **9.0** | 26.5 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [文妤 黄](https://appshunter.io/developer/1383669544) | [JANGWOO BAE](https://appshunter.io/developer/6789806121) |

## What reviewers say

### OntoFit

[App page](https://appshunter.io/ios/app/ontofit/id1453150726)

This app provides detailed body composition analysis and tracks your health metrics over time. It offers personalized insights and supports multiple family users, integrating with health platforms for comprehensive health management.

**Highlights:** 13 body composition analysis, Trend charts for tracking changes, Body shaping measurements, Support for up to 24 users, Integration with Apple Health, Personalized app theme colors

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

**In-app purchases:** none


### Runtune

[App page](https://appshunter.io/ios/app/runtune/id6789806119)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OntoFit free?

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

### Is Runtune free?

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

### Do OntoFit or Runtune have ads?

Neither OntoFit nor Runtune shows ads.

### Which is updated more often, OntoFit or Runtune?

OntoFit ships an update every 3 months, and Runtune every 4 days. Most recently, OntoFit was updated on October 19, 2026 and Runtune on October 3, 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.*