# Radioactivity Conversion vs MiTrak

The clearest difference is review sentiment: MiTrak at 100% against Radioactivity Conversion's 0%. MiTrak also leads on price (Free vs $2.99) and rating (5.0 vs 3.0). Radioactivity Conversion's advantage is iOS requirement (13 vs 15). On ratings volume, ads, in-app purchases and device support there is nothing between them.

MiTrak is free to download; Radioactivity Conversion costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

MiTrak holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 0% of Radioactivity Conversion's written reviews are positive against 100% of MiTrak's.

Radioactivity Conversion ships an update every 28 months, MiTrak every 10 months. The most recent releases landed on June 12, 2026 and June 3, 2026 respectively.

## The numbers

| Metric | Radioactivity Conversion | MiTrak |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/radioactivity-conversion/id561349846/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mitrak/id1177638301/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 28 months | **Every 10 months** |
| Monetization | Paid | **Free** |
| Size | 1 MB | 34 MB |
| Requires iOS | **13** | 15 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [Direct Communication Solutions](https://appshunter.io/developer/1125265460) |

## What reviewers say

### Radioactivity Conversion

[App page](https://appshunter.io/ios/app/radioactivity-conversion/id561349846)

Easily convert between various units related to radioactive decay. Understand the process of emitting radioactive particles and the properties of elements exhibiting radioactivity.

**Highlights:** Radioactive decay unit conversion, Information on radioactive decay process, Details on radioactive particles, Explanation of half-life, Properties of radioactive elements

**Features:** macOS Compatibility

**In-app purchases:** none


### MiTrak

[App page](https://appshunter.io/ios/app/mitrak/id1177638301)

Transform your smartphone into a tracking device for real-time location monitoring and movement history. Optimize staff whereabouts and streamline related processes with customizable settings for efficient data collection and battery management.

**Highlights:** Smartphone tracking device, Real-time location monitoring, Movement history tracking, Customizable user modes, Power saving settings, SOS message functionality, Remote control capabilities

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

**In-app purchases:** none


## Frequently asked questions

### Is Radioactivity Conversion free?

Radioactivity Conversion costs $2.99, with no in-app purchases.

### Is MiTrak free?

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

### Which has better reviews, Radioactivity Conversion or MiTrak?

MiTrak is rated higher. Radioactivity Conversion averages 3.0 out of 5 from 2 ratings, while MiTrak averages 5.0 from 1 ratings.

### Do Radioactivity Conversion or MiTrak have ads?

Neither Radioactivity Conversion nor MiTrak shows ads.

### Which is updated more often, Radioactivity Conversion or MiTrak?

Radioactivity Conversion ships an update every 28 months, and MiTrak every 10 months. Most recently, Radioactivity Conversion was updated on June 12, 2026 and MiTrak on June 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.*