# Basic Calc Plus vs Rotary calculator

The clearest difference is update cadence: Rotary calculator at every 2 weeks against Basic Calc Plus's every 17 months. Rotary calculator also leads on device support (3 vs 1) and iOS requirement (15.8.3 vs 17.6). On price, ads 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.

Basic Calc Plus ships an update every 17 months, Rotary calculator every 2 weeks. The most recent releases landed on October 3, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Basic Calc Plus | Rotary calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 17 months | **Every 2 weeks** |
| Size | 5 MB | 35 MB |
| Requires iOS | 17.6 | **15.8.3** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Osamu Ishigami](https://appshunter.io/developer/901265058) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### Basic Calc Plus

[App page](https://appshunter.io/ios/app/basic-calc-plus/id926102502)

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

**In-app purchases:** none


### Rotary calculator

[App page](https://appshunter.io/ios/app/rotary-calculator/id6499560600)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Basic Calc Plus free?

Basic Calc Plus is free to download, with no in-app purchases.

### Is Rotary calculator free?

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

### Do Basic Calc Plus or Rotary calculator have ads?

Both Basic Calc Plus and Rotary calculator show ads.

### Which is updated more often, Basic Calc Plus or Rotary calculator?

Basic Calc Plus ships an update every 17 months, and Rotary calculator every 2 weeks. Most recently, Basic Calc Plus was updated on October 3, 2026 and Rotary calculator on October 1, 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.*