# Bolt Length vs PCS Traverse Barcode Tracking

The clearest difference is in-app purchases: PCS Traverse Barcode Tracking at none against Bolt Length's 1. PCS Traverse Barcode Tracking also leads on ads (none vs shown) and iOS requirement (12.4 vs 14.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Bolt Length sells 1 one-off in-app purchase. PCS Traverse Barcode Tracking asks for nothing beyond the download.

Bolt Length ships an update every 20 months, PCS Traverse Barcode Tracking every 21 months. The most recent releases landed on October 8, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Bolt Length | PCS Traverse Barcode Tracking |
| --- | --- | --- |
| 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 | **No** |
| Update frequency | **Every 20 months** | Every 21 months |
| Monetization | Free with in-app purchases | — |
| Size | 6 MB | 81 MB |
| Requires iOS | 14.0 | **12.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [mitsunori oishi](https://appshunter.io/developer/905649994) | [Practical Compliance Solutions](https://appshunter.io/developer/1448885926) |

## 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 |


### PCS Traverse Barcode Tracking

[App page](https://appshunter.io/ios/app/pcs-traverse-barcode-tracking/id1448885927)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Bolt Length free?

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

### Is PCS Traverse Barcode Tracking free?

PCS Traverse Barcode Tracking is free to download, with no in-app purchases.

### Do Bolt Length or PCS Traverse Barcode Tracking have ads?

Bolt Length shows ads; PCS Traverse Barcode Tracking does not.

### Which is updated more often, Bolt Length or PCS Traverse Barcode Tracking?

Bolt Length ships an update every 20 months, and PCS Traverse Barcode Tracking every 21 months. Most recently, Bolt Length was updated on October 8, 2026 and PCS Traverse Barcode Tracking on October 19, 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.*