# CZSO vs CALLIPEDA

The clearest difference is update cadence: CALLIPEDA at every 4 days against CZSO's monthly. CZSO's advantage is iOS requirement (13.0 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.

CZSO ships an update monthly, CALLIPEDA every 4 days. The most recent releases landed on November 7, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | CZSO | CALLIPEDA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Size | 8 MB | 3 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cesky statisticky urad](https://appshunter.io/developer/805764166) | [CALLIPEDA s.r.o.](https://appshunter.io/developer/6793160460) |

## What reviewers say

### CZSO

[App page](https://appshunter.io/ios/app/czso/id1604362113)

**Features:** macOS Compatibility

**In-app purchases:** none


### CALLIPEDA

[App page](https://appshunter.io/ios/app/callipeda/id6793160457)

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

**In-app purchases:** none


## Frequently asked questions

### Is CZSO free?

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

### Is CALLIPEDA free?

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

### Do CZSO or CALLIPEDA have ads?

Neither CZSO nor CALLIPEDA shows ads.

### Which is updated more often, CZSO or CALLIPEDA?

CZSO ships an update monthly, and CALLIPEDA every 4 days. Most recently, CZSO was updated on November 7, 2026 and CALLIPEDA on October 29, 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.*