# SigmaAPP vs Criterium

The clearest difference is update cadence: SigmaAPP at every 2 months against Criterium's every 7 months. Criterium's advantage is iOS requirement (11.0 vs 15.6). 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.

SigmaAPP ships an update every 2 months, Criterium every 7 months. The most recent releases landed on October 11, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | SigmaAPP | Criterium |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Size | 62 MB | 46 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | +4 | 4+ |
| Developer | [Dzigne Sistemas e Tecnologia LTDA ME](https://appshunter.io/developer/650792218) | [Union Data Soluções em TI](https://appshunter.io/developer/1143603022) |

## What reviewers say

### SigmaAPP

[App page](https://appshunter.io/ios/app/sigmaapp/id1449513233)

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

**In-app purchases:** none


### Criterium

[App page](https://appshunter.io/ios/app/criterium/id1531939090)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SigmaAPP free?

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

### Is Criterium free?

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

### Do SigmaAPP or Criterium have ads?

Neither SigmaAPP nor Criterium shows ads.

### Which is updated more often, SigmaAPP or Criterium?

SigmaAPP ships an update every 2 months, and Criterium every 7 months. Most recently, SigmaAPP was updated on October 11, 2026 and Criterium on October 2, 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.*