# PegelBS vs NuklidCalc

PegelBS and NuklidCalc are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

PegelBS ships an update every 15 months, NuklidCalc every 12 months. The most recent releases landed on October 13, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | PegelBS | NuklidCalc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 12 months** |
| Size | 6 MB | 15 MB |
| Requires iOS | **12.4** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tiefbauamt Basel-Stadt](https://appshunter.io/developer/1354137789) | [Bundesamt für Gesundheit BAG](https://appshunter.io/developer/557143322) |

## What reviewers say

### PegelBS

[App page](https://appshunter.io/ios/app/pegelbs/id1494104706)

**Features:** macOS Compatibility

**In-app purchases:** none


### NuklidCalc

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PegelBS free?

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

### Is NuklidCalc free?

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

### Do PegelBS or NuklidCalc have ads?

Neither PegelBS nor NuklidCalc shows ads.

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

PegelBS ships an update every 15 months, and NuklidCalc every 12 months. Most recently, PegelBS was updated on October 13, 2026 and NuklidCalc on October 11, 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.*