# Bolt Length vs 物理計算機

The clearest difference is in-app purchases: 物理計算機 at none against Bolt Length's 1. Bolt Length's advantage is device support. On price and iOS requirement there is nothing between them.

Both are free to download. Bolt Length sells 1 one-off in-app purchase. 物理計算機 asks for nothing beyond the download.

## The numbers

| Metric | Bolt Length | 物理計算機 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/bolt-length-nominal-length/id1042345193/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | — |
| Update frequency | Every 20 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 6 MB | 7 MB |
| Requires iOS | **14.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [mitsunori oishi](https://appshunter.io/developer/905649994) | [Risako Asai](https://appshunter.io/developer/1671273580) |

## What reviewers say

### Bolt Length

[App page](https://appshunter.io/ios/app/bolt-length-nominal-length/id1042345193)

This application helps calculate the length of metric coarse screws based on Japanese Industrial Standards. It is designed for mechanical design purposes and should be used at the user's own risk.

**Highlights:** Metric coarse screw length calculation, Conforms to Japanese Industrial Standards (JIS), Designed for mechanical design, User risk disclaimer

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hide Ads | $1.99 | one-time |


### 物理計算機

[App page](https://appshunter.io/ios/app/id6443504511)

**In-app purchases:** none


## Frequently asked questions

### Is Bolt Length free?

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

### Is 物理計算機 free?

物理計算機 is free to download, with no in-app purchases.

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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.*