# Chippy Tools vs Engine Builder Pro

The clearest difference is in-app purchases: Engine Builder Pro at none against Chippy Tools's 10. Engine Builder Pro also leads on update cadence (every 2 days vs every 8 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Chippy Tools sells 9 in-app purchases, starting at $2.99 per 7 days. Engine Builder Pro asks for nothing beyond the download.

Chippy Tools ships an update every 8 days, Engine Builder Pro every 2 days. The most recent releases landed on October 30, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Chippy Tools | Engine Builder Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (907 ratings)](https://appshunter.io/ios/app/chippy-tools-construction/id1579138717/reviews)** | — |
| Number of ratings | **907** | — |
| Positive reviews | 55.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 days | **Every 2 days** |
| Monetization | Freemium | — |
| Size | 46 MB | 22 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Peth Pty Ltd](https://appshunter.io/developer/662891650) | [Gemma Beames](https://appshunter.io/developer/6811020787) |

## What reviewers say

### 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


### Engine Builder Pro

[App page](https://appshunter.io/ios/app/engine-builder-pro/id6813993112)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Chippy Tools free?

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

### Is Engine Builder Pro free?

Engine Builder Pro is free to download, with no in-app purchases.

### Do Chippy Tools or Engine Builder Pro have ads?

Neither Chippy Tools nor Engine Builder Pro shows ads.

### Which is updated more often, Chippy Tools or Engine Builder Pro?

Chippy Tools ships an update every 8 days, and Engine Builder Pro every 2 days. Most recently, Chippy Tools was updated on October 30, 2026 and Engine Builder Pro on October 5, 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.*