# Donnerberg vs Pump Iron

The clearest difference is update cadence: Pump Iron at every 2 days against Donnerberg's every 2 months. Donnerberg's advantage is iOS requirement (14.0 vs 26.2). On price, ads, in-app purchases and device support there is nothing between them.

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

Donnerberg ships an update every 2 months, Pump Iron every 2 days. The most recent releases landed on October 16, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Donnerberg | Pump Iron |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Size | 7 MB | 3 MB |
| Requires iOS | **14.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Margita Grbic](https://appshunter.io/developer/1641488870) | [HECTOR SHERLOCK E STANLEY](https://appshunter.io/developer/1800456642) |

## What reviewers say

### Donnerberg

[App page](https://appshunter.io/ios/app/donnerberg/id6740983836)

**Features:** macOS Compatibility

**In-app purchases:** none


### Pump Iron

[App page](https://appshunter.io/ios/app/pump-iron/id6759263960)

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

**In-app purchases:** none


## Frequently asked questions

### Is Donnerberg free?

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

### Is Pump Iron free?

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

### Do Donnerberg or Pump Iron have ads?

Neither Donnerberg nor Pump Iron shows ads.

### Which is updated more often, Donnerberg or Pump Iron?

Donnerberg ships an update every 2 months, and Pump Iron every 2 days. Most recently, Donnerberg was updated on October 16, 2026 and Pump Iron on October 6, 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.*