# CYBEX vs Red Calm

The clearest difference is iOS requirement: Red Calm at 12.0 against CYBEX's 15.6. 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.

CYBEX ships an update every 4 weeks, Red Calm monthly. The most recent releases landed on October 19, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | CYBEX | Red Calm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (1.2K ratings)](https://appshunter.io/ios/app/cybex/id6474168019/reviews)** | — |
| Number of ratings | **1.2K** | — |
| Positive reviews | 13.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Monthly |
| Monetization | Free | — |
| Size | 138 MB | 33 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CYBEX GmbH](https://appshunter.io/developer/1720736547) | [Shenzhen Jiechenxin Technology Co., Ltd](https://appshunter.io/developer/1450224562) |

## What reviewers say

### CYBEX

[App page](https://appshunter.io/ios/app/cybex/id6474168019)

This app enhances the safety and functionality of smart baby products. It connects to monitoring systems for alerts on child safety and well-being, and unlocks features for smart strollers. Users can also register products and join a membership program.

**Highlights:** Child monitoring system alerts, Smart stroller rocking function, Product registration, CYBEX Club membership, Installation guidance and videos

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Quick alerts
- 👍 Useful for busy parents

**What reviewers complain about**

- 🐛 Constant false alarms
- 🔋 Drains data and battery
- 👎 Incompatible with existing SensorSafe devices
- 💤 Fails to send alerts when needed
- 🔒 Logging out issues and poor account management

**Reported bugs**

- Unable to create account or log in
- Fails to connect to SensorSafe clip
- E-Priam settings not working
- Inconsistent behavior and frequent crashes

**Requested features**

- Option to disable marketing notifications
- Improved Bluetooth connectivity and compatibility
- Better temperature monitoring and adjustment
- Seamless migration from old app to new app


### Red Calm

[App page](https://appshunter.io/ios/app/red-calm/id6746784444)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CYBEX free?

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

### Is Red Calm free?

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

### Do CYBEX or Red Calm have ads?

Neither CYBEX nor Red Calm shows ads.

### Which is updated more often, CYBEX or Red Calm?

CYBEX ships an update every 4 weeks, and Red Calm monthly. Most recently, CYBEX was updated on October 19, 2026 and Red Calm on October 1, 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.*