# ATFA Toolbox vs GST Calculator

The clearest difference is in-app purchases: ATFA Toolbox at none against GST Calculator's 3. ATFA Toolbox also leads on iOS requirement (16.4 vs 18.6). GST Calculator's advantage is update cadence (daily vs every 2 weeks). On price, ads and device support there is nothing between them.

Both are free to download. GST Calculator sells 3 in-app purchases, starting at $4.99 per 7 days. ATFA Toolbox asks for nothing beyond the download.

ATFA Toolbox ships an update every 2 weeks, GST Calculator daily. The most recent releases landed on November 7, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | ATFA Toolbox | GST Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | Free | — |
| Size | 41 MB | 16 MB |
| Requires iOS | **16.4** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [AUSTRALIAN TIMBER FLOORING ASSOCIATION LIMITED](https://appshunter.io/developer/1520000494) | [RICKHIL PUNEET PRAKASH](https://appshunter.io/developer/1810186230) |

## What reviewers say

### ATFA Toolbox

[App page](https://appshunter.io/ios/app/atfa-toolbox/id1520000492)

This app provides timber flooring professionals with essential on-site tools like an EMC calculator and job cost estimator. It also offers access to membership details and a library of technical information sheets, with personalized recommendations based on membership type.

**Highlights:** EMC calculator for timber moisture content, Job cost estimate builder and exporter, View membership level and renewal date, Access recommended and full info sheets, Pin frequently used information sheets, Share info sheets via private links

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

**In-app purchases:** none


### GST Calculator

[App page](https://appshunter.io/ios/app/gst-calculator-gstpro/id6811202985)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access | $4.99 | per 7 days |
| Monthly Access | $8.99 | per month |
| Annual Access | $34.99 | per year |


## Frequently asked questions

### Is ATFA Toolbox free?

ATFA Toolbox is free to download, with no in-app purchases.

### Is GST Calculator free?

GST Calculator is free to download, with in-app purchases available.

### Do ATFA Toolbox or GST Calculator have ads?

Neither ATFA Toolbox nor GST Calculator shows ads.

### Which is updated more often, ATFA Toolbox or GST Calculator?

ATFA Toolbox ships an update every 2 weeks, and GST Calculator daily. Most recently, ATFA Toolbox was updated on November 7, 2026 and GST Calculator on November 6, 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.*