# Kase₄: Your Personal Database — Simple. Flexible. Relational.

> Personal, flexible, relational database app for organizing any type of data. (iPhone/iPad app by Kenneth Wong.)

- Source: https://appshunter.io/ios/app/kase-your-personal-database/id1644975888 (this page in markdown: same URL + `.md`)
- Developer: [Kenneth Wong](https://appshunter.io/developer/1275992151)
- Category: Productivity, Reference
- Price: $9.99 with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 17 MB
- Languages: English
- Released: 2023-11-30
- Data updated: 2026-06-01
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/kase-your-personal-database/id1644975888/reviews.md

## What is Kase₄?

Kase exists because it should. There should be a database app that can go anywhere with you. It should be:
• Simple — Using it should be easy and intuitive,
• Flexible — Once familiar with the basics, you can design any database to track anything important to you, and
• Relational — Inter-linked data is an order of magnitude more useful. Plus, you don't want to repeat yourself.

Additionally, it should be:
• Personal — You should not need to worry about who can peek into your data, and
• Always Available — High-speed wireless network should *not* be a prerequisite for accessing your own data.

Structured data at your fingertips. Something like that didn't exist, so I started creating Kase in 2014.

Basic Concepts:
• Your Kase contains Boxes.
• Each Box stores Decks that can relate to each other.
• A Deck collects similarly structured Cards.
• And a Card is where you put data Entries.

Features:
• Pick, assign, and organize with Categories, Tags, and Marks.
• Search by name, notes, full text, or keywords: Full-text indexing with Natural Language Processing.
• Highlight any Box, Deck, Card, Entry, or Keyword.
• Deck definitions support inheritance!
• Field types include Text, Number (with Unit), Money (with Currency), Date/Time (with Time Zone), Choice, Boolean, Link, Picture, and Document.
    - complete with multi-level auto-conversion
• Write in Markdown and see rich formatted text.
• Box can be locked with a passcode, and unlocked with Face ID or Touch ID.
• Formatters (Fx) to visualize data in different ways without altering the data one bit.
    e.g. Unit Converter, NameMapper, WordScrambler, ICU Transformers...
• Side-by-Side: Compare Cards easily by displaying in columns.
• On-device Text Recognitions (OCR) for multiple languages.
• Import/Export in CSV, JSON, or KASE.
• Complete Backup & Restore.
• iPad Multitasking support: Split View, Slide Over, etc.
• Very customizable UI with custom locales


What Kase Can't Do:
- Cloud sync is not done yet (stay tuned...)


What Kase Can Do:

> From Data to Wisdom
> Data ▹ Information ▹ Knowledge ▹ Wisdom

1. Store Data — the objective truths.
2. Organize Information — to reflect circumstances and current condition.
3. Systematically retrieve Knowledge — utilized for decision-making.
4. And that hopefully enables you to grasp Wisdom, comprehend insights, and ultimately create value.


There are databases that belong to the Big Guys. The rest of them should stay personal.

By now, you should realize how valuable your data is. So why give it away? Kase keeps your data yours.


See www.wisd.com/kase for more details.

Terms of Use (EULA): https://www.wisd.com/kase/eula

## Key features

- 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

## Pricing and in-app purchases

Base price: $9.99.

**One-time purchases**

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


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/kase-your-personal-database/id1644975888/reviews.md

### 1/5 — Poor support

*2023-12-05*

I used the original free version which I find it to be very good. When the new version came up, I bought it and I couldn’t import any of the hundreds of records I had in the free version cause it doesn’t work anymore. Also the sorting function in the paid version is limited. I consider my $10 wasted as the paid version is useless to me

**Developer response:** It should not be like this at all. Both free and paid editions should be able to upgrade older versions’ backup and exports, and the new version has sorting expanded and improved, not limited. Please use Kase’s Help -> Send Feedback (or email support@wisd.com) so we can help you sort things out. Thank you!

## Frequently asked questions about Kase₄

### What is Kase₄?

Kase₄ is a personal database application designed for iOS devices. It allows users to create flexible, relational databases to track and organize any type of information privately on their device.

### How does Kase₄ handle data privacy?

Kase₄ prioritizes user privacy by keeping all data stored locally on your device. It offers passcode protection and can be unlocked with Face ID or Touch ID, ensuring your information is not shared with third parties.

### Can I access my data offline with Kase₄?

Yes, Kase₄ is designed for offline access. A high-speed wireless network is not a prerequisite for accessing your own data, making it always available.

### What types of data can I store in Kase₄?

Kase₄ supports a wide range of field types including Text, Number, Money, Date/Time, Choice, Boolean, Link, Picture, and Document. It also supports writing in Markdown for rich text formatting.

### How much does Kase₄ cost?

Kase₄ is a paid application. The current price is $9.99, offering a one-time purchase for full access to its features.

### Does Kase₄ have ads?

No, Kase₄ does not contain advertisements. As a paid application, it provides an ad-free experience for its users.

### What platforms is Kase₄ available on?

Kase₄ is available for iPhone, iPad, and iPod. It also supports iPad multitasking features like Split View and Slide Over.

### How often is Kase₄ updated?

The latest version of Kase₄ is 4.8, and it was last updated on September 25, 2025. Updates typically include new features and improvements based on user feedback and development.

## Version history (last 5 releases)

### 4.8 — 2025-09-25

- iOS 26 compatibility

### 4.7 — 2025-06-25

Enhancements

- Tightened some loose ends and ready for some big changes...

Plus many other fixes and improvements.

https://www.wisd.com/kase/releases

### 4.6 — 2025-02-28

New Features
• Money field with multi-level Currency support: Decimal-based to avoid rounding errors with Float types
• Custom Locales: localized display of dates, numbers, units, currencies, time zones, city names, languages names, lists, etc.

Enhancements
• Customizable Side Menu with collapsible sections providing easy access to the completely redesigned Units, Time Zones, Locales windows and the brand new Currencies browser
• Cards Sort mode: up to 3 non-standard sort fields displayed

Plus many other fixes and improvements.

See www.wisd.com/kase/releases/#release-4 for more details.

### 4.5 — 2024-09-07

Enhancements
• Formatters simplified and extended: new KaseFx command StringTransformer
• Secure coding for Core Data model Transformers
• Inheritance: "Remove Inheritance": a Deck can "uninherit" (or be disinherited) from its super Deck
• Import/Export: more efficient (less stupid) codes

Fixes
• CSV import with AutoFill could cause a crash. (fixed)

See www.wisd.com/kase/releases#release-4 for more details.

### 4.4.1 — 2024-08-05

- workaround for a StoreKit bug that makes subscriptions unavailable
- README file for backups

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## More apps by Kenneth Wong

- [Kase: Your Personal Database](https://appshunter.io/ios/app/kase-your-personal-database/id1481308987)
- [Kase₄ CE](https://appshunter.io/ios/app/kase-ce/id1481312655)
- [Moments₂: Count Your Blessings](https://appshunter.io/ios/app/moments-count-your-blessings/id1598683225)
- [pixelLogic₂](https://appshunter.io/ios/app/pixellogic/id1599456600)

All apps by Kenneth Wong: https://appshunter.io/developer/1275992151

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*