# Thalassa vs SkyRewind

The clearest difference is update cadence: SkyRewind at daily against Thalassa's every 3 weeks. SkyRewind also leads on iOS requirement (15.0 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.

Thalassa ships an update every 3 weeks, SkyRewind daily. The most recent releases landed on September 19, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Thalassa | SkyRewind |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Daily** |
| Size | 5 MB | 4 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CMCC Foundation](https://appshunter.io/developer/533102421) | [Giuseppe Nesca](https://appshunter.io/developer/6777173893) |

## What reviewers say

### Thalassa

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

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

**In-app purchases:** none


### SkyRewind

[App page](https://appshunter.io/ios/app/skyrewind/id6808961368)

**In-app purchases:** none


## Frequently asked questions

### Is Thalassa free?

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

### Is SkyRewind free?

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

### Do Thalassa or SkyRewind have ads?

Neither Thalassa nor SkyRewind shows ads.

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

Thalassa ships an update every 3 weeks, and SkyRewind daily. Most recently, Thalassa was updated on September 19, 2026 and SkyRewind on October 1, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*