# Half vs DecayMate

The clearest difference is update cadence: DecayMate at every 5 weeks against Half's every 11 months. Half's advantage is device support (3 vs 1) and iOS requirement (6.0 vs 26.0). On price, 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.

Half ships an update every 11 months, DecayMate every 5 weeks. The most recent releases landed on November 1, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Half | DecayMate |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/half-life-hero/id888601153/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 5 weeks** |
| Monetization | Free | — |
| Size | 59 MB | 1 MB |
| Requires iOS | **6.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Australian Nuclear Science and Technology Organisation](https://appshunter.io/developer/733689061) | [Ludovico Pestarino](https://appshunter.io/developer/1856700574) |

## What reviewers say

### Half

[App page](https://appshunter.io/ios/app/half-life-hero/id888601153)

This educational game simulates the process of producing nuclear medicines and industrial isotopes. Players manage a reactor to create essential materials for hospitals and research, learning about their societal benefits and decay rates.

**Highlights:** Teaches nuclear medicine and isotopes, Simulates isotope production process, Supports science education, Features six common isotopes, Mobile and web app, Sound on/off option

**In-app purchases:** none


### DecayMate

[App page](https://appshunter.io/ios/app/decaymate/id6755844272)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Half free?

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

### Is DecayMate free?

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

### Do Half or DecayMate have ads?

Neither Half nor DecayMate shows ads.

### Which is updated more often, Half or DecayMate?

Half ships an update every 11 months, and DecayMate every 5 weeks. Most recently, Half was updated on November 1, 2026 and DecayMate on November 9, 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.*