# Kase₄ vs Calendar Notes Pro

The clearest difference is review sentiment: Calendar Notes Pro at 100% against Kase₄'s 0%. Calendar Notes Pro also leads on price (Free vs $9.99) and in-app purchases (none vs 4). Kase₄'s advantage is ads (none vs shown). On device support and iOS requirement there is nothing between them.

Calendar Notes Pro is free to download; Kase₄ costs $9.99 up front. Kase₄ sells 4 one-off in-app purchases. Calendar Notes Pro asks for nothing beyond the download.

Kase₄ ships an update every 2 months, Calendar Notes Pro daily. The most recent releases landed on October 3, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Kase₄ | Calendar Notes Pro |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/calendar-notes-pro/id6757369920/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Daily** |
| Monetization | Paid | **Ad-supported** |
| Size | 17 MB | 35 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kenneth Wong](https://appshunter.io/developer/1275992151) | [Alok Haldiya](https://appshunter.io/developer/1866422343) |

## What reviewers say

### 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 |


### Calendar Notes Pro

[App page](https://appshunter.io/ios/app/calendar-notes-pro/id6757369920)

This app integrates your calendar and notes into a single, minimalist interface. View notes directly on your calendar and enjoy instant auto-save for a stress-free organization experience. It prioritizes privacy by storing all data locally on your device.

**Highlights:** Notes displayed on calendar, Instant auto-save, Minimalist design, Tap to write notes, Fully offline functionality, Local data storage

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Kase₄ free?

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

### Is Calendar Notes Pro free?

Calendar Notes Pro is free to download, with no in-app purchases.

### Do Kase₄ or Calendar Notes Pro have ads?

Calendar Notes Pro shows ads; Kase₄ does not.

### Which is updated more often, Kase₄ or Calendar Notes Pro?

Kase₄ ships an update every 2 months, and Calendar Notes Pro daily. Most recently, Kase₄ was updated on October 3, 2026 and Calendar Notes Pro on September 23, 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.*