# Fastener Dimensions vs Hedwig

The clearest difference is review sentiment: Hedwig at 60% against Fastener Dimensions's 0%. Hedwig also leads on rating (4.2 vs 2.3) and update cadence (every 2 days vs every 6 months). Fastener Dimensions's advantage is iOS requirement (12.0 vs 17.6). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Fastener Dimensions costs $4.99 and Hedwig $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Hedwig holds the better App Store score, 4.2 against 2.3. Both are backed by a comparable volume of ratings — 3 and 5 respectively. Written reviews point the same way: 0% of Fastener Dimensions's written reviews are positive against 60% of Hedwig's.

Fastener Dimensions ships an update every 6 months, Hedwig every 2 days. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Fastener Dimensions | Hedwig |
| --- | --- | --- |
| Price | $4.99 | **$1.99** |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/fastener-dimensions/id6476143105/reviews) | **[4.2 (5 ratings)](https://appshunter.io/ios/app/hedwig-block-text-messages/id6736428346/reviews)** |
| Number of ratings | 3 | **5** |
| Positive reviews | 0.0% of reviews | **60.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 days** |
| Monetization | Paid | Paid |
| Best chart rank | — | **#179** |
| Size | 62 MB | 6 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ajay Gorasiya](https://appshunter.io/developer/1455174866) | [Chris Korhonen](https://appshunter.io/developer/1366620256) |

## What reviewers say

### 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, Vision Pro support

**In-app purchases:** none


### Hedwig

[App page](https://appshunter.io/ios/app/hedwig-block-text-messages/id6736428346)

**Currently charting:** #179 Top Paid · Utilities (US App Store)

This AI-powered assistant automatically filters unwanted messages, including spam, scams, and promotional texts, to keep your inbox clean. It offers customizable options and prioritizes user privacy by processing all filtering directly on your device.

**Highlights:** AI-powered spam filtering, Customizable message filters, Phishing and scam protection, Background operation, On-device data processing, Effortless setup

**In-app purchases:** none


## Frequently asked questions

### Is Fastener Dimensions free?

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

### Is Hedwig free?

Hedwig costs $1.99, with no in-app purchases.

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

Hedwig is rated higher. Fastener Dimensions averages 2.3 out of 5 from 3 ratings, while Hedwig averages 4.2 from 5 ratings.

### Do Fastener Dimensions or Hedwig have ads?

Neither Fastener Dimensions nor Hedwig shows ads.

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

Fastener Dimensions ships an update every 6 months, and Hedwig every 2 days. Most recently, Fastener Dimensions was updated on October 30, 2026 and Hedwig on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*