# COSMO vs Beta Eta Lambda

The clearest difference is update cadence: COSMO at every 2 months against Beta Eta Lambda's every 40 months. Beta Eta Lambda's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.0). 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 ships an update every 2 months, Beta Eta Lambda every 40 months. The most recent releases landed on September 11, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | COSMO | Beta Eta Lambda |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (270 ratings)](https://appshunter.io/ios/app/cosmo-mission-control/id1580600845/reviews)** | — |
| Number of ratings | **270** | — |
| Positive reviews | 59.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 40 months |
| Monetization | Free | — |
| Size | 20 MB | 47 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [com.cosmo.smartwatch](https://appshunter.io/developer/1525824151) | [Ricardo Cumberbatch](https://appshunter.io/developer/1455104172) |

## What reviewers say

### COSMO

[App page](https://appshunter.io/ios/app/cosmo-mission-control/id1580600845)

This app allows parents to manage a child's smart watch for safety and communication. It offers GPS tracking, contact management, and customizable alerts for peace of mind. Parents can also monitor activity and set quiet times for school.

**Highlights:** GPS location tracking, Approved contact management, Geo-fence 'SafeZone' alerts, School Mode for distraction-free learning, SOS emergency alerts, Activity tracking and goals, Customizable alarms and reminders

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Reliable tracking and communication
- 👍 User-friendly app and watch design
- 🔒 Parental controls and safety features
- 💡 Helpful for giving kids independence

**What reviewers complain about**

- 🐛 Inconsistent location tracking and updates
- 🔋 Poor battery life
- 🔇 Unreliable call quality
- 🤔 Limited functionality compared to expectations

**Reported bugs**

- Activation and account setup issues
- Frequent app crashes and freezes
- Inconsistent connectivity and service disruptions
- Inability to disable watch without parental access

**Requested features**

- Improved location tracking accuracy and real-time updates
- Ability for all approved contacts to text the child
- Integrated parental portal within the app
- Additional features like video calling, night mode, and more customization


### Beta Eta Lambda

[App page](https://appshunter.io/ios/app/beta-eta-lambda/id1621690296)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is COSMO free?

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

### Is Beta Eta Lambda free?

Beta Eta Lambda is free to download, with no in-app purchases.

### Do COSMO or Beta Eta Lambda have ads?

Neither COSMO nor Beta Eta Lambda shows ads.

### Which is updated more often, COSMO or Beta Eta Lambda?

COSMO ships an update every 2 months, and Beta Eta Lambda every 40 months. Most recently, COSMO was updated on September 11, 2026 and Beta Eta Lambda on September 9, 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.*