# ParallelCalculator vs 電卓

The clearest difference is iOS requirement: ParallelCalculator at 15.1 against 電卓's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. ParallelCalculator sells 2 in-app purchases, starting at $1.99 per month and 電卓 sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | ParallelCalculator | 電卓 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | — | Every 3 days |
| Size | 38 MB | 8 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ryusei Wakita](https://appshunter.io/developer/1896649944) | [Takahiro Kimura](https://appshunter.io/developer/6775796488) |

## What reviewers say

### ParallelCalculator

[App page](https://appshunter.io/ios/app/parallelcalculator/id6769945397)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアム 月額プラン | $1.99 | per month |
| プレミアム 年額プラン | $19.99 | per year |


### 電卓

[App page](https://appshunter.io/ios/app/id6789199382)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support the Developer | $0.99 | one-time |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is ParallelCalculator free?

ParallelCalculator is free to download, with in-app purchases available.

### Is 電卓 free?

電卓 is free to download, with in-app purchases available.

### Do ParallelCalculator or 電卓 have ads?

Both ParallelCalculator and 電卓 show ads.

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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.*