# SIGMA CIDIU vs APP

The clearest difference is update cadence: SIGMA CIDIU at every 2 months against APP's every 5 months. SIGMA CIDIU also leads on iOS requirement (11.0 vs 13.0). 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.

SIGMA CIDIU ships an update every 2 months, APP every 5 months. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | SIGMA CIDIU | APP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 5 months |
| Size | 21 MB | 50 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ID&A S.r.l.](https://appshunter.io/developer/1446283055) | [Micronova Srl](https://appshunter.io/developer/1338789037) |

## What reviewers say

### SIGMA CIDIU

[App page](https://appshunter.io/ios/app/sigma-cidiu/id1544746166)

**Features:** macOS Compatibility

**In-app purchases:** none


### APP

[App page](https://appshunter.io/ios/app/app-o-bioen/id1636702464)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SIGMA CIDIU free?

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

### Is APP free?

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

### Do SIGMA CIDIU or APP have ads?

Neither SIGMA CIDIU nor APP shows ads.

### Which is updated more often, SIGMA CIDIU or APP?

SIGMA CIDIU ships an update every 2 months, and APP every 5 months. Most recently, SIGMA CIDIU was updated on November 7, 2026 and APP on October 30, 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.*