# Calculator PanecalST Plus vs Haiku Note

The clearest difference is price: Haiku Note at Free against Calculator PanecalST Plus's $1.99. Haiku Note also leads on update cadence (every 5 weeks vs every 4 months). Calculator PanecalST Plus's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

Haiku Note is free to download; Calculator PanecalST Plus costs $1.99 up front. Haiku Note sells 1 one-off in-app purchase. Calculator PanecalST Plus asks for nothing beyond the download.

Calculator PanecalST Plus ships an update every 4 months, Haiku Note every 5 weeks. The most recent releases landed on October 19, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Calculator PanecalST Plus | Haiku Note |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.9 (15 ratings)](https://appshunter.io/ios/app/calculator-panecalst-plus/id702784955/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 82.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Monetization | Paid | — |
| Size | 17 MB | 8 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Noriyasu Kutsuzawa](https://appshunter.io/developer/668500806) | [Mihoko Araki](https://appshunter.io/developer/1476136915) |

## What reviewers say

### Calculator PanecalST Plus

[App page](https://appshunter.io/ios/app/calculator-panecalst-plus/id702784955)

This calculator app allows you to view and edit complex formulas with ease. It prevents errors by letting you check input as you go and reuse past calculations by modifying values. Navigate and edit expressions quickly with a cursor and intuitive controls.

**Highlights:** Formula editing with cursor, Re-calculation using history, Time, tax, and percentage calculations, Cut, copy, and paste functionality, Expression and answer history, Customizable settings

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

**In-app purchases:** none


### Haiku Note

[App page](https://appshunter.io/ios/app/haiku-note/id1617431925)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $2.99 | one-time |


## Frequently asked questions

### Is Calculator PanecalST Plus free?

Calculator PanecalST Plus costs $1.99, with no in-app purchases.

### Is Haiku Note free?

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

### Do Calculator PanecalST Plus or Haiku Note have ads?

Haiku Note shows ads; Calculator PanecalST Plus does not.

### Which is updated more often, Calculator PanecalST Plus or Haiku Note?

Calculator PanecalST Plus ships an update every 4 months, and Haiku Note every 5 weeks. Most recently, Calculator PanecalST Plus was updated on October 19, 2026 and Haiku Note on October 5, 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.*