# T vs Thalassa

The clearest difference is update cadence: T at every 3 days against Thalassa's every 3 weeks. 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.

T ships an update every 3 days, Thalassa every 3 weeks. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | T | Thalassa |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Size | 37 MB | 5 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Bitpoi S.r.l.](https://appshunter.io/developer/1886906417) | [CMCC Foundation](https://appshunter.io/developer/533102421) |

## What reviewers say

### T

[App page](https://appshunter.io/ios/app/t-meteo/id6760934108)

**Features:** macOS Compatibility, 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 T free?

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

### Is Thalassa free?

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

### Do T or Thalassa have ads?

Neither T nor Thalassa shows ads.

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

T ships an update every 3 days, and Thalassa every 3 weeks. Most recently, T was updated on October 28, 2026 and Thalassa on October 31, 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.*