# PebbleBits vs Fastener Dimensions

The clearest difference is price: PebbleBits at Free against Fastener Dimensions's $4.99. PebbleBits also leads on rating (2.3 vs 1.0) and review sentiment (29% vs 0%). On ads, in-app purchases and device support there is nothing between them.

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

PebbleBits holds the better App Store score, 2.3 against 1.0. Both are backed by a comparable volume of ratings — 7 and 2 respectively. Written reviews point the same way: 29% of PebbleBits's written reviews are positive against 0% of Fastener Dimensions's.

PebbleBits ships an update monthly, Fastener Dimensions every 6 months. The most recent releases landed on August 24, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | PebbleBits | Fastener Dimensions |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[2.3 (7 ratings)](https://appshunter.io/ios/app/pebblebits/id915120213/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/fastener-dimensions/id6476143105/reviews) |
| Number of ratings | **7** | 2 |
| Positive reviews | **28.6% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 months |
| Monetization | **Free** | Paid |
| Size | 2 MB | 62 MB |
| Requires iOS | **7.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Max Bäumle](https://appshunter.io/developer/392544441) | [Ajay Gorasiya](https://appshunter.io/developer/1455174866) |

## What reviewers say

### PebbleBits

[App page](https://appshunter.io/ios/app/pebblebits/id915120213)

Create personalized firmware for your Pebble smartwatch. This utility allows users to customize their device's software to suit specific needs and preferences.

**Highlights:** Custom firmware generation, Pebble smartwatch support, Personalized device software

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

**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 PebbleBits free?

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

### Is Fastener Dimensions free?

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

### Which has better reviews, PebbleBits or Fastener Dimensions?

PebbleBits is rated higher. PebbleBits averages 2.3 out of 5 from 7 ratings, while Fastener Dimensions averages 1.0 from 2 ratings.

### Do PebbleBits or Fastener Dimensions have ads?

Neither PebbleBits nor Fastener Dimensions shows ads.

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

PebbleBits ships an update monthly, and Fastener Dimensions every 6 months. Most recently, PebbleBits was updated on August 24, 2026 and Fastener Dimensions on June 1, 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.*