# Certificall vs K

The clearest difference is update cadence: Certificall at every 3 weeks against K's every 2 months. K's advantage is iOS requirement (12.0 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.

Certificall ships an update every 3 weeks, K every 2 months. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Certificall | K |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 38 MB | 52 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Certificall](https://appshunter.io/developer/1682032051) | [karamoguo keita](https://appshunter.io/developer/1605831201) |

## What reviewers say

### Certificall

[App page](https://appshunter.io/ios/app/certificall-preuve-numerique/id6447635443)

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

**In-app purchases:** none


### K

[App page](https://appshunter.io/ios/app/k-ra/id6505098683)

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

**In-app purchases:** none


## Frequently asked questions

### Is Certificall free?

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

### Is K free?

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

### Do Certificall or K have ads?

Neither Certificall nor K shows ads.

### Which is updated more often, Certificall or K?

Certificall ships an update every 3 weeks, and K every 2 months. Most recently, Certificall was updated on November 3, 2026 and K on November 8, 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.*