# Calculator83 vs Calculator with 12 button

The clearest difference is ads: Calculator83 at none against Calculator with 12 button's shown. Calculator83 also leads on device support (3 vs 1) and iOS requirement (15.0 vs 26.0). Calculator with 12 button's advantage is update cadence (every 2 months vs every 20 months). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Calculator83 ships an update every 20 months, Calculator with 12 button every 2 months. The most recent releases landed on October 14, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Calculator83 | Calculator with 12 button |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/calculator83/id891194491/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 20 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 10 MB | 42 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Lyker Labs LLC](https://appshunter.io/developer/891194494) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### Calculator83

[App page](https://appshunter.io/ios/app/calculator83/id891194491)

A minimalist calculator app focused on simplicity and a clean workflow. It offers both basic and scientific modes, allowing users to perform calculations without complex settings. Get started quickly with this straightforward tool.

**Highlights:** Minimalist design, Clean workflow, Basic mode, Scientific mode, Easy to use

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

**In-app purchases:** none


### Calculator with 12 button

[App page](https://appshunter.io/ios/app/calculator-with-12-button/id6754877013)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calculator83 free?

Calculator83 is free to download, with no in-app purchases.

### Is Calculator with 12 button free?

Calculator with 12 button is free to download, with no in-app purchases.

### Do Calculator83 or Calculator with 12 button have ads?

Calculator with 12 button shows ads; Calculator83 does not.

### Which is updated more often, Calculator83 or Calculator with 12 button?

Calculator83 ships an update every 20 months, and Calculator with 12 button every 2 months. Most recently, Calculator83 was updated on October 14, 2026 and Calculator with 12 button on October 25, 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.*