# Hague Screw Thread Calculator vs Chippy Tools

The clearest difference is rating: Chippy Tools at 4.5 against Hague Screw Thread Calculator's 4.0. Chippy Tools also leads on update cadence (every 8 days vs every 2 months) and ratings volume (905 vs 5). Hague Screw Thread Calculator's advantage is in-app purchases (none vs 10) and review sentiment (82% vs 55%). On price, ads and device support there is nothing between them.

Both are free to download. Chippy Tools sells 9 in-app purchases, starting at $2.99 per 7 days. Hague Screw Thread Calculator asks for nothing beyond the download.

Chippy Tools holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: Chippy Tools has 905 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 82% of Hague Screw Thread Calculator's written reviews are positive against 55% of Chippy Tools's, so the app with the better star average is not the one people write more warmly about.

Hague Screw Thread Calculator ships an update every 2 months, Chippy Tools every 8 days. The most recent releases landed on October 16, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Hague Screw Thread Calculator | Chippy Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (5 ratings)](https://appshunter.io/ios/app/hague-screw-thread-calculator/id853369162/reviews) | **[4.5 (905 ratings)](https://appshunter.io/ios/app/chippy-tools-construction/id1579138717/reviews)** |
| Number of ratings | 5 | **905** |
| Positive reviews | **82.4% of reviews** | 55.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 8 days** |
| Monetization | **Free** | Freemium |
| Size | 6 MB | 46 MB |
| Requires iOS | **14.4** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hague Fasteners Ltd](https://appshunter.io/developer/853369165) | [Peth Pty Ltd](https://appshunter.io/developer/662891650) |

## What reviewers say

### Hague Screw Thread Calculator

[App page](https://appshunter.io/ios/app/hague-screw-thread-calculator/id853369162)

This engineering tool provides instant access to critical dimensions for various screw thread standards, including Unified, Whitworth, and ISO Metric. It also allows for the creation and calculation of custom thread sizes and pitches, eliminating the need for physical reference books.

**Highlights:** Unified screw thread data, Whitworth screw thread data, ISO Metric screw thread data, Custom thread calculator, Critical nominal dimensions

**Features:** macOS Compatibility

**In-app purchases:** none


### Chippy Tools

[App page](https://appshunter.io/ios/app/chippy-tools-construction/id1579138717)

This app simplifies complex calculations for construction professionals. It offers a variety of tools for tasks like spacing, measurements, and material estimation, helping to reduce errors and save time on job sites. Available on iPhone and iPad, it aims to be an essential tool for tradespeople.

**Highlights:** Baluster spacing calculator, Flat run attached baluster calculator, Square calculator, Concrete calculator, Stair calculator, Supports millimeters, feet, and inches

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chippy Tools Pro - Weekly | $2.99 | per 7 days |
| Chippy Tools Pro - Weekly | $3.99 | per 7 days |
| Chippy Tools Pro - Quarterly | $4.99 | per 3 months |
| Chippy Tools Pro - Monthly | $5.99 | per month |
| Chippy Tools Pro - Monthly | $5.99 | per month |
| Chippy Tools Pro - Annual | $19.99 | per year |
| Chippy Tools Pro - Annual | $19.99 | per year |
| Chippy Tools Pro - Annual | $19.99 | per year |
| One Time Purchase | $85.00 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Quick and efficient
- 💡 Useful construction tools
- 🙌 Great for DIY projects

**What reviewers complain about**

- 🤔 Confusing interface
- 💰 Expensive subscription
- 🐛 Inaccurate calculations
- 🔒 Difficult to cancel subscription

**Reported bugs**

- Square check feature not working
- Measurements disappear after partial use

**Requested features**

- Add more construction-related calculators
- Improve stair and rafter tools
- Include material quantity estimations
- Add support for metric and imperial units


## Frequently asked questions

### Is Hague Screw Thread Calculator free?

Hague Screw Thread Calculator is free to download, with no in-app purchases.

### Is Chippy Tools free?

Chippy Tools is free to download, with in-app purchases available.

### Which has better reviews, Hague Screw Thread Calculator or Chippy Tools?

Chippy Tools is rated higher. Hague Screw Thread Calculator averages 4.0 out of 5 from 5 ratings, while Chippy Tools averages 4.5 from 905 ratings.

### Do Hague Screw Thread Calculator or Chippy Tools have ads?

Neither Hague Screw Thread Calculator nor Chippy Tools shows ads.

### Which is updated more often, Hague Screw Thread Calculator or Chippy Tools?

Hague Screw Thread Calculator ships an update every 2 months, and Chippy Tools every 8 days. Most recently, Hague Screw Thread Calculator was updated on October 16, 2026 and Chippy Tools on October 20, 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.*