# Notebook Calculator vs Ukulele Chord Master

The clearest difference is update cadence: Ukulele Chord Master at every 8 months against Notebook Calculator's every 40 months. Ukulele Chord Master also leads on price ($0.99 vs $1.99). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Notebook Calculator costs $1.99 and Ukulele Chord Master $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Notebook Calculator ships an update every 40 months, Ukulele Chord Master every 8 months. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Notebook Calculator | Ukulele Chord Master |
| --- | --- | --- |
| Price | $1.99 | **$0.99** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 40 months | **Every 8 months** |
| Monetization | Paid | — |
| Size | 4 MB | 5 MB |
| Requires iOS | 15.6 | **15** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [俊 姜](https://appshunter.io/developer/974809005) | [丽俨 龚](https://appshunter.io/developer/1816613061) |

## What reviewers say

### Notebook Calculator

[App page](https://appshunter.io/ios/app/notebook-calculator/id1169182532)

This app functions as a powerful calculator with a notebook interface, allowing users to write, edit, save, and graph complex calculations. It supports a wide range of mathematical and statistical functions, including scientific and complex number calculations, with features like copy, cut, and paste for easy editing.

**Highlights:** Notebook interface for calculations, Edit, save, and graph history, Scientific and graphic calculator functions, Complex number calculations, Extensive mathematical functions, Statistical functions, File management for calculations

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

**In-app purchases:** none


### Ukulele Chord Master

[App page](https://appshunter.io/ios/app/ukulele-chord-master/id6747797770)

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

**In-app purchases:** none


## Frequently asked questions

### Is Notebook Calculator free?

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

### Is Ukulele Chord Master free?

Ukulele Chord Master costs $0.99, with no in-app purchases.

### Do Notebook Calculator or Ukulele Chord Master have ads?

Neither Notebook Calculator nor Ukulele Chord Master shows ads.

### Which is updated more often, Notebook Calculator or Ukulele Chord Master?

Notebook Calculator ships an update every 40 months, and Ukulele Chord Master every 8 months. Most recently, Notebook Calculator was updated on November 2, 2026 and Ukulele Chord Master on November 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.*