# COSMO Regler vs CELSEO

The clearest difference is update cadence: CELSEO at every 2 weeks against COSMO Regler's every 8 months. CELSEO also leads on device support (3 vs 1). COSMO Regler's advantage is iOS requirement (13.0 vs 15.6). 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.

COSMO Regler ships an update every 8 months, CELSEO every 2 weeks. The most recent releases landed on September 6, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | COSMO Regler | CELSEO |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 13 MB | 4 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [COSMO GmbH](https://appshunter.io/developer/977173823) | [Wolfgang Bezold](https://appshunter.io/developer/1497211310) |

## What reviewers say

### COSMO Regler

[App page](https://appshunter.io/ios/app/cosmo-regler-trainer/id977173824)

**Features:** macOS Compatibility

**In-app purchases:** none


### CELSEO

[App page](https://appshunter.io/ios/app/celseo/id1497561319)

This app provides CELSEO members with up-to-date figures and cooperation information. Access is restricted to members with secure login protocols.

**Highlights:** Member-exclusive access, Latest figures and information, Secure login, Cooperation data

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

**In-app purchases:** none


## Frequently asked questions

### Is COSMO Regler free?

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

### Is CELSEO free?

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

### Do COSMO Regler or CELSEO have ads?

Neither COSMO Regler nor CELSEO shows ads.

### Which is updated more often, COSMO Regler or CELSEO?

COSMO Regler ships an update every 8 months, and CELSEO every 2 weeks. Most recently, COSMO Regler was updated on September 6, 2026 and CELSEO on September 22, 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.*