# KTrunk vs Kase₄

The clearest difference is review sentiment: KTrunk at 50% against Kase₄'s 0%. KTrunk also leads on price (Free vs $9.99). Kase₄'s advantage is iOS requirement (15.0 vs 18.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

KTrunk is free to download; Kase₄ costs $9.99 up front. KTrunk sells 3 one-off in-app purchases and Kase₄ sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

KTrunk ships an update monthly, Kase₄ every 2 months. The most recent releases landed on June 4, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | KTrunk | Kase₄ |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ktrunk/id1543722029/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 10 MB | 17 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Clemens Schuetzdeller](https://appshunter.io/developer/1543722031) | [Kenneth Wong](https://appshunter.io/developer/1275992151) |

## 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 |


### Kase₄

[App page](https://appshunter.io/ios/app/kase-your-personal-database/id1644975888)

This app allows you to create and manage your own personal databases on your device. It offers flexibility in designing structures to track anything important, with features like inter-linked data, full-text search, and various field types. Your data remains private and accessible offline.

**Highlights:** Design custom databases, Inter-linked data, Full-text search with NLP, Multiple field types, Markdown support, Passcode and biometric lock, Data visualization (Formatters), OCR for text recognition

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip: Dollar | $1.00 | one-time |
| Tip: Coffee | $2.00 | one-time |
| Tip: Coffee, CA | $4.00 | one-time |
| Tip: Caffè Mocha | $5.00 | one-time |


## Frequently asked questions

### Is KTrunk free?

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

### Is Kase₄ free?

Kase₄ costs $9.99, and also offers in-app purchases.

### Do KTrunk or Kase₄ have ads?

Neither KTrunk nor Kase₄ shows ads.

### Which is updated more often, KTrunk or Kase₄?

KTrunk ships an update monthly, and Kase₄ every 2 months. Most recently, KTrunk was updated on June 4, 2026 and Kase₄ on June 1, 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.*