# Katmer.im vs Zafer ZOne

The clearest difference is update cadence: Zafer ZOne at every 3 days against Katmer.im's every 10 days. 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.

Katmer.im ships an update every 10 days, Zafer ZOne every 3 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Katmer.im | Zafer ZOne |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/katmerim/id6749801768/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 3 days** |
| Monetization | Free | — |
| Size | 10 MB | 58 MB |
| Requires iOS | 17.6 | **16.4** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Arguman Yapay Zeka Teknolojileri Anonim Sirketi](https://appshunter.io/developer/1832189666) | [ZAFER EGITIM VE OGRETIM LIMITED SIRKETI](https://appshunter.io/developer/6808615716) |

## What reviewers say

### Katmer.im

[App page](https://appshunter.io/ios/app/katmerim/id6749801768)

Organize academic and daily tasks with smart calendar views and secure, encrypted notes. Enhance focus with a built-in Pomodoro timer and access tasks instantly via a home screen widget. Optimized for mobile academic workflows.

**Highlights:** Task management with calendar views, End-to-end encrypted note-taking, Integrated Pomodoro timer, Cloud sync with web account, Home screen widget for quick access, Optimized for academic workflows

**Features:** macOS Compatibility

**In-app purchases:** none


### Zafer ZOne

[App page](https://appshunter.io/ios/app/zafer-zone/id6808615714)

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

**In-app purchases:** none


## Frequently asked questions

### Is Katmer.im free?

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

### Is Zafer ZOne free?

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

### Do Katmer.im or Zafer ZOne have ads?

Neither Katmer.im nor Zafer ZOne shows ads.

### Which is updated more often, Katmer.im or Zafer ZOne?

Katmer.im ships an update every 10 days, and Zafer ZOne every 3 days. Most recently, Katmer.im was updated on October 30, 2026 and Zafer ZOne on October 31, 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.*