# eMutterPass vs CK

The clearest difference is update cadence: CK at every 3 weeks against eMutterPass's every 3 months. 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.

eMutterPass ships an update every 3 months, CK every 3 weeks. The most recent releases landed on September 29, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | eMutterPass | CK |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 34 MB | 93 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Universitätsspital Zürich](https://appshunter.io/developer/886112115) | [Nia Health GmbH](https://appshunter.io/developer/1493690951) |

## What reviewers say

### eMutterPass

[App page](https://appshunter.io/ios/app/emutterpass/id1161718099)

This app provides pregnant individuals with a digital version of their maternity pass. It stores all pregnancy-related data, including ultrasound images, and is updated after each clinic visit. Access useful informational brochures and keep all essential pregnancy information conveniently on your smartphone.

**Highlights:** Digital maternity pass, Stores pregnancy data, Includes ultrasound images, Informational brochures, Updated after clinic visits

**Features:** macOS Compatibility

**In-app purchases:** none


### CK

[App page](https://appshunter.io/ios/app/ck-care/id6758330744)

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

**In-app purchases:** none


## Frequently asked questions

### Is eMutterPass free?

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

### Is CK free?

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

### Do eMutterPass or CK have ads?

Neither eMutterPass nor CK shows ads.

### Which is updated more often, eMutterPass or CK?

eMutterPass ships an update every 3 months, and CK every 3 weeks. Most recently, eMutterPass was updated on September 29, 2026 and CK on October 16, 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.*