# GELSEN vs Action Calculator

The clearest difference is device support: Action Calculator at 3 against GELSEN's 1. Action Calculator also leads on iOS requirement (15.5 vs 17). On price, update cadence, 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.

GELSEN ships an update every 3 days, Action Calculator every 5 days. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | GELSEN | Action Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 5 days |
| Size | 181 MB | 72 MB |
| Requires iOS | 17 | **15.5** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Conntac GmbH](https://appshunter.io/developer/1305865392) | [MEHMET DOGAN](https://appshunter.io/developer/6797559359) |

## What reviewers say

### GELSEN

[App page](https://appshunter.io/ios/app/gelsen-net/id6767538552)

**In-app purchases:** none


### Action Calculator

[App page](https://appshunter.io/ios/app/action-calculator/id6797559357)

**In-app purchases:** none


## Frequently asked questions

### Is GELSEN free?

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

### Is Action Calculator free?

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

### Do GELSEN or Action Calculator have ads?

Neither GELSEN nor Action Calculator shows ads.

### Which is updated more often, GELSEN or Action Calculator?

GELSEN ships an update every 3 days, and Action Calculator every 5 days. Most recently, GELSEN was updated on October 24, 2026 and Action Calculator on October 21, 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.*