# BLECarVoltage vs Fastener Dimensions

The clearest difference is price: BLECarVoltage at Free against Fastener Dimensions's $4.99. BLECarVoltage also leads on iOS requirement (9.0 vs 12.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

BLECarVoltage is free to download; Fastener Dimensions costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BLECarVoltage ships an update every 4 months, Fastener Dimensions every 6 months. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | BLECarVoltage | Fastener Dimensions |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | — | **[2.3 (3 ratings)](https://appshunter.io/ios/app/fastener-dimensions/id6476143105/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 6 months |
| Monetization | — | Paid |
| Size | 55 MB | 62 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Longfellow Chen](https://appshunter.io/developer/1025308037) | [Ajay Gorasiya](https://appshunter.io/developer/1455174866) |

## What reviewers say

### BLECarVoltage

[App page](https://appshunter.io/ios/app/blecarvoltage/id1269971537)

**Features:** macOS Compatibility

**In-app purchases:** none


### Fastener Dimensions

[App page](https://appshunter.io/ios/app/fastener-dimensions/id6476143105)

This app provides a comprehensive guide to various types of fasteners, including bolts, nuts, pins, and washers. Explore diverse options and dimensions to meet specific project requirements and enhance your understanding of these essential components.

**Highlights:** Dimensions of bolts, nuts, pins, and washers, Variety of bolt types (e.g., countersunk, hex head flange), Range of nut types (e.g., hex, wing), Intricacies of pin types (e.g., clevis, cylindrical, tapered), Choices of washer types (e.g., plain, spring), Guide for project requirements

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BLECarVoltage free?

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

### Is Fastener Dimensions free?

Fastener Dimensions costs $4.99, with no in-app purchases.

### Do BLECarVoltage or Fastener Dimensions have ads?

Neither BLECarVoltage nor Fastener Dimensions shows ads.

### Which is updated more often, BLECarVoltage or Fastener Dimensions?

BLECarVoltage ships an update every 4 months, and Fastener Dimensions every 6 months. Most recently, BLECarVoltage was updated on October 10, 2026 and Fastener Dimensions on October 24, 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.*