# C vs PIDZ

The clearest difference is update cadence: PIDZ at monthly against C's every 6 months. C's advantage is iOS requirement (9.0 vs 15.0). 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.

C ships an update every 6 months, PIDZ monthly. The most recent releases landed on October 1, 2026 and August 15, 2026 respectively.

## The numbers

| Metric | C | PIDZ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Monthly** |
| Size | 13 MB | 21 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bluebird Software](https://appshunter.io/developer/1471615225) | [PIDZ Software BV](https://appshunter.io/developer/977584458) |

## What reviewers say

### C

[App page](https://appshunter.io/ios/app/c-iris/id1471615706)

**Features:** macOS Compatibility

**In-app purchases:** none


### PIDZ

[App page](https://appshunter.io/ios/app/pidz/id6747712718)

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

**In-app purchases:** none


## Frequently asked questions

### Is C free?

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

### Is PIDZ free?

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

### Do C or PIDZ have ads?

Neither C nor PIDZ shows ads.

### Which is updated more often, C or PIDZ?

C ships an update every 6 months, and PIDZ monthly. Most recently, C was updated on October 1, 2026 and PIDZ on August 15, 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.*