# Sensy vs Thalassa

The clearest difference is update cadence: Thalassa at every 3 weeks against Sensy's every 4 months. Sensy's advantage is iOS requirement (15.1 vs 17.0). 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.

Sensy ships an update every 4 months, Thalassa every 3 weeks. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Sensy | Thalassa |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Size | 28 MB | 5 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sense Square srl](https://appshunter.io/developer/1445173033) | [CMCC Foundation](https://appshunter.io/developer/533102421) |

## What reviewers say

### Sensy

[App page](https://appshunter.io/ios/app/sensy/id6447569255)

**Features:** Vision Pro support

**In-app purchases:** none


### Thalassa

[App page](https://appshunter.io/ios/app/thalassa/id6792569125)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sensy free?

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

### Is Thalassa free?

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

### Do Sensy or Thalassa have ads?

Neither Sensy nor Thalassa shows ads.

### Which is updated more often, Sensy or Thalassa?

Sensy ships an update every 4 months, and Thalassa every 3 weeks. Most recently, Sensy was updated on October 10, 2026 and Thalassa on October 6, 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.*