# The Chippy Calc vs BYKKO Lock

The clearest difference is in-app purchases: BYKKO Lock at none against The Chippy Calc's 3. BYKKO Lock also leads on iOS requirement (14.0 vs 16.4). On price, 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. BYKKO Lock asks for nothing beyond the download.

## The numbers

| Metric | The Chippy Calc | BYKKO Lock |
| --- | --- | --- |
| 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 | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 76 MB | 21 MB |
| Requires iOS | 16.4 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Vike Digital Pty Ltd](https://appshunter.io/developer/1742926734) | [BYKKO Pty Ltd](https://appshunter.io/developer/1783105390) |

## What reviewers say

### 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 |


### BYKKO Lock

[App page](https://appshunter.io/ios/app/bykko-lock/id6738952787)

**In-app purchases:** none


## Frequently asked questions

### Is The Chippy Calc free?

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

### Is BYKKO Lock free?

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

### Do The Chippy Calc or BYKKO Lock have ads?

Neither The Chippy Calc nor BYKKO Lock shows ads.

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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.*