# Aquafi vs Radiotherapy Tools

The clearest difference is price: Aquafi at Free against Radiotherapy Tools's $17.99. Aquafi also leads on in-app purchases (none vs 1) and iOS requirement (15.5 vs 17). Radiotherapy Tools's advantage is update cadence (every 2 weeks vs every 5 months). On ads and device support there is nothing between them.

Aquafi is free to download; Radiotherapy Tools costs $17.99 up front. Radiotherapy Tools sells 1 in-app purchase, starting at $29.99 per year. Aquafi asks for nothing beyond the download.

Aquafi ships an update every 5 months, Radiotherapy Tools every 2 weeks. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Aquafi | Radiotherapy Tools |
| --- | --- | --- |
| Price | **Free** | $17.99 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Size | 1 MB | 29 MB |
| Requires iOS | **15.5** | 17 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Aquafi Mobile Ltd](https://appshunter.io/developer/584180581) | [Yavuz Erol](https://appshunter.io/developer/1797117198) |

## What reviewers say

### Aquafi

[App page](https://appshunter.io/ios/app/aquafi/id584181779)

**Features:** macOS Compatibility

**In-app purchases:** none


### Radiotherapy Tools

[App page](https://appshunter.io/ios/app/radiotherapy-tools/id6742157886)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan | $29.99 | per year |


## Frequently asked questions

### Is Aquafi free?

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

### Is Radiotherapy Tools free?

Radiotherapy Tools costs $17.99, and also offers in-app purchases.

### Do Aquafi or Radiotherapy Tools have ads?

Neither Aquafi nor Radiotherapy Tools shows ads.

### Which is updated more often, Aquafi or Radiotherapy Tools?

Aquafi ships an update every 5 months, and Radiotherapy Tools every 2 weeks. Most recently, Aquafi was updated on October 29, 2026 and Radiotherapy Tools on October 30, 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.*