# TCE/SC vs ONSAT

The clearest difference is update cadence: ONSAT at every 2 weeks against TCE/SC's every 6 weeks. ONSAT also leads on iOS requirement (15.1 vs 17.6). 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.

TCE/SC ships an update every 6 weeks, ONSAT every 2 weeks. The most recent releases landed on September 28, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | TCE/SC | ONSAT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Size | 25 MB | 82 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tribunal de Contas do Estado de Santa Catarina](https://appshunter.io/developer/1295945170) | [SITALLCOM SISTEMAS INTELIGENTES LTDA](https://appshunter.io/developer/1526495577) |

## What reviewers say

### TCE/SC

[App page](https://appshunter.io/ios/app/tcesc/id1418343272)

**Features:** macOS Compatibility

**In-app purchases:** none


### ONSAT

[App page](https://appshunter.io/ios/app/onsat/id1538472707)

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

**In-app purchases:** none


## Frequently asked questions

### Is TCE/SC free?

TCE/SC is free to download, with no in-app purchases.

### Is ONSAT free?

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

### Do TCE/SC or ONSAT have ads?

Neither TCE/SC nor ONSAT shows ads.

### Which is updated more often, TCE/SC or ONSAT?

TCE/SC ships an update every 6 weeks, and ONSAT every 2 weeks. Most recently, TCE/SC was updated on September 28, 2026 and ONSAT on November 3, 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.*