# Design Pine Span App vs The Chippy Calc

The clearest difference is in-app purchases: Design Pine Span App at none against The Chippy Calc's 3. Design Pine Span App also leads on iOS requirement (11.0 vs 16.4). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. The Chippy Calc sells 3 in-app purchases, starting at $3.99 per month. Design Pine Span App asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 5, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Design Pine Span App | The Chippy Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (2 ratings)](https://appshunter.io/ios/app/the-chippy-calc-builder-tools/id6499256065/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 74 MB | 76 MB |
| Requires iOS | **11.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Silvertrees Web Development Pty Ltd](https://appshunter.io/developer/1458607245) | [Vike Digital Pty Ltd](https://appshunter.io/developer/1742926734) |

## What reviewers say

### Design Pine Span App

[App page](https://appshunter.io/ios/app/design-pine-span-app/id1559403952)

**Features:** macOS Compatibility

**In-app purchases:** none


### The Chippy Calc

[App page](https://appshunter.io/ios/app/the-chippy-calc-builder-tools/id6499256065)

This app provides carpenters, builders, and DIYers with precise, visual construction calculations. It offers specialized tools for stairs, decks, rafters, and more, with support for both metric and imperial units. All calculations can be saved and accessed offline.

**Highlights:** Visual results with scaled diagrams, Metric and imperial unit support, Offline functionality, 14+ specialized construction calculators, Stair, deck, and rafter calculations, Linear cut list optimization

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Annually | $19.99 | per year |
| Lifetime Premium Access | $79.99 | one-time |


## Frequently asked questions

### Is Design Pine Span App free?

Design Pine Span App is free to download, with no in-app purchases.

### Is The Chippy Calc free?

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

### Do Design Pine Span App or The Chippy Calc have ads?

Neither Design Pine Span App nor The Chippy Calc shows ads.

### Which is updated more often, Design Pine Span App or The Chippy Calc?

Design Pine Span App ships an update every 2 months, and The Chippy Calc every 2 months. Most recently, Design Pine Span App was updated on October 5, 2026 and The Chippy Calc on October 9, 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.*