# NuklidCalc vs MiVaulty

The clearest difference is update cadence: MiVaulty at every 3 months against NuklidCalc's every 12 months. NuklidCalc's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). 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.

NuklidCalc ships an update every 12 months, MiVaulty every 3 months. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | NuklidCalc | MiVaulty |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 3 months** |
| Size | 15 MB | 4 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Bundesamt für Gesundheit BAG](https://appshunter.io/developer/557143322) | [Ram Steenhaut](https://appshunter.io/developer/1818109693) |

## What reviewers say

### NuklidCalc

[App page](https://appshunter.io/ios/app/nuklidcalc/id6463144495)

**Features:** macOS Compatibility

**In-app purchases:** none


### MiVaulty

[App page](https://appshunter.io/ios/app/mivaulty/id6761763448)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NuklidCalc free?

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

### Is MiVaulty free?

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

### Do NuklidCalc or MiVaulty have ads?

Neither NuklidCalc nor MiVaulty shows ads.

### Which is updated more often, NuklidCalc or MiVaulty?

NuklidCalc ships an update every 12 months, and MiVaulty every 3 months. Most recently, NuklidCalc was updated on October 30, 2026 and MiVaulty on October 31, 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.*