# Basic Calc Plus vs Kitten's Calc

The clearest difference is ads: Kitten's Calc at none against Basic Calc Plus's shown. Kitten's Calc also leads on device support (3 vs 1) and iOS requirement (11.1 vs 17.6). Basic Calc Plus's advantage is update cadence (every 17 months vs every 44 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.

Basic Calc Plus ships an update every 17 months, Kitten's Calc every 44 months. The most recent releases landed on October 3, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Basic Calc Plus | Kitten's Calc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 17 months** | Every 44 months |
| Size | 5 MB | 31 MB |
| Requires iOS | 17.6 | **11.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Osamu Ishigami](https://appshunter.io/developer/901265058) | [Yoji Munakata](https://appshunter.io/developer/1228576175) |

## 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


### Kitten's Calc

[App page](https://appshunter.io/ios/app/kittens-calc/id1436394420)

**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 Kitten's Calc free?

Kitten's Calc is free to download, with no in-app purchases.

### Do Basic Calc Plus or Kitten's Calc have ads?

Basic Calc Plus shows ads; Kitten's Calc does not.

### Which is updated more often, Basic Calc Plus or Kitten's Calc?

Basic Calc Plus ships an update every 17 months, and Kitten's Calc every 44 months. Most recently, Basic Calc Plus was updated on October 3, 2026 and Kitten's Calc on September 30, 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.*