# KTrunk vs ZattaMemo

KTrunk and ZattaMemo are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. KTrunk sells 3 one-off in-app purchases and ZattaMemo sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

KTrunk ships an update monthly, ZattaMemo every 3 weeks. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | KTrunk | ZattaMemo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ktrunk/id1543722029/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 3 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Clemens Schuetzdeller](https://appshunter.io/developer/1543722031) | [Tatsuyoshi Sasaki](https://appshunter.io/developer/1888368184) |

## What reviewers say

### KTrunk

[App page](https://appshunter.io/ios/app/ktrunk/id1543722029)

This note-taking app allows you to save ideas with attached files and photos. You can create links between notes and files, and synchronize your data across devices. An optional in-app purchase enables note encryption for enhanced privacy.

**Highlights:** Save ideas with files and photos, Link notes to other notes and files, Synchronize across devices via iCloud, Notes saved in HTML format, Optional note encryption

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Operating Convenience | $0.99 | one-time |
| Privacy | $1.99 | one-time |
| #Tag-Proposals | $1.99 | one-time |


### ZattaMemo

[App page](https://appshunter.io/ios/app/zattamemo/id6761243555)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ZattaMemo Upgrade | $3.99 | one-time |


## Frequently asked questions

### Is KTrunk free?

KTrunk is free to download, with in-app purchases available.

### Is ZattaMemo free?

ZattaMemo is free to download, with in-app purchases available.

### Do KTrunk or ZattaMemo have ads?

Neither KTrunk nor ZattaMemo shows ads.

### Which is updated more often, KTrunk or ZattaMemo?

KTrunk ships an update monthly, and ZattaMemo every 3 weeks. Most recently, KTrunk was updated on October 14, 2026 and ZattaMemo on October 13, 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.*