# Calculator Pro basic vs Big Yellow Calculator

The clearest difference is in-app purchases: Calculator Pro basic at none against Big Yellow Calculator's 1. Calculator Pro basic also leads on update cadence (every 3 weeks vs every 2 months) and iOS requirement (8.0 vs 15.6). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Big Yellow Calculator sells 1 one-off in-app purchase. Calculator Pro basic asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Calculator Pro basic against 5.0 for Big Yellow Calculator. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Calculator Pro basic ships an update every 3 weeks, Big Yellow Calculator every 2 months. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Calculator Pro basic | Big Yellow Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/calculator-pro-basic/id1042600645/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/big-yellow-calculator/id6446835863/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 7 MB | 1 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kenichi Yoshikawa](https://appshunter.io/developer/954163256) | [山 黄](https://appshunter.io/developer/1679305097) |

## What reviewers say

### Calculator Pro basic

[App page](https://appshunter.io/ios/app/calculator-pro-basic/id1042600645)

This calculator app allows extensive customization of its appearance and button functions. Users can personalize wallpapers, button shapes, colors, and even the position of function buttons. It supports various calculation methods and display modes for a tailored user experience.

**Highlights:** Customizable button shapes, colors, and positions, Set custom wallpaper backgrounds, Multiple calculation methods and rounding modes, Adjustable decimal places and angle units, History log with display options, Supports portrait and landscape modes

**Features:** macOS Compatibility

**In-app purchases:** none


### Big Yellow Calculator

[App page](https://appshunter.io/ios/app/big-yellow-calculator/id6446835863)

This versatile calculator app offers customizable layouts, switching between standard and scientific modes. It also allows users to store up to 10 intermediate results for complex calculations, making it a functional tool for various needs.

**Highlights:** Customizable layouts, Standard and scientific modes, Store intermediate results, Up to 10 stored results, Versatile functionality

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all features | $0.99 | one-time |


## Frequently asked questions

### Is Calculator Pro basic free?

Calculator Pro basic is free to download, with no in-app purchases.

### Is Big Yellow Calculator free?

Big Yellow Calculator is free to download, with in-app purchases available.

### Which has better reviews, Calculator Pro basic or Big Yellow Calculator?

Calculator Pro basic and Big Yellow Calculator are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Calculator Pro basic or Big Yellow Calculator have ads?

Neither Calculator Pro basic nor Big Yellow Calculator shows ads.

### Which is updated more often, Calculator Pro basic or Big Yellow Calculator?

Calculator Pro basic ships an update every 3 weeks, and Big Yellow Calculator every 2 months. Most recently, Calculator Pro basic was updated on October 24, 2026 and Big Yellow Calculator on October 12, 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.*