# Decisive Driver vs Building Code Calculator

The clearest difference is iOS requirement: Decisive Driver at 13.0 against Building Code Calculator's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Decisive Driver ships an update every 3 months, Building Code Calculator every 2 months. The most recent releases landed on September 16, 2026 and May 17, 2026 respectively.

## The numbers

| Metric | Decisive Driver | Building Code Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 74 MB | 1 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [GoRoadie Limited](https://appshunter.io/developer/1548955082) | [Oklahoma State University](https://appshunter.io/developer/393442180) |

## What reviewers say

### Decisive Driver

[App page](https://appshunter.io/ios/app/decisive-driver/id6741766959)

**In-app purchases:** none


### Building Code Calculator

[App page](https://appshunter.io/ios/app/building-code-calculator/id6747673691)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Decisive Driver free?

Decisive Driver is free to download, with no in-app purchases.

### Is Building Code Calculator free?

Building Code Calculator is free to download, with no in-app purchases.

### Do Decisive Driver or Building Code Calculator have ads?

Neither Decisive Driver nor Building Code Calculator shows ads.

### Which is updated more often, Decisive Driver or Building Code Calculator?

Decisive Driver ships an update every 3 months, and Building Code Calculator every 2 months. Most recently, Decisive Driver was updated on September 16, 2026 and Building Code Calculator on May 17, 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.*