# GST NZ Calculator — GST tax inclusive or exclusive

> GST tax inclusive or exclusive (iPhone/iPad app by Chewy Applications.)

- Source: https://appshunter.io/ios/app/gst-nz-calculator/id587311220 (this page in markdown: same URL + `.md`)
- Developer: [Chewy Applications](https://appshunter.io/developer/415417492)
- Category: Finance, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 0 MB
- Languages: American English
- Released: 2012-12-21
- Data updated: 2026-08-23
- User reviews in markdown: https://appshunter.io/ios/app/gst-nz-calculator/id587311220/reviews.md

## What is GST NZ Calculator?

GST Kiwi is a simple GST calculator for the New Zealand Goods and Services Tax. 

The fastest and most straight forward GST app on the App Store. Simply enter your value in one of three boxes, and the other values are calculated as you key in the numbers. 

GST Kiwi is useful in three specific cases: 
- 'Removing GST': When you have a price which already includes GST, and you need to know the GST component of that value, and the amount left after GST is excluded. 
- Adding GST': When you know a price excluding GST, and you need to know how much GST will be added, and what the final value is including GST. 
- 'Working backwards': When you only know the GST amount, and you need to know what the original price of the goods were, excluding and including GST. 

Why GST Kiwi is great:

COPY AND PASTE
Starting values can be paste into any field, and results can be copied and pasted into other apps.

QUICK ENTRY
The large number-pad is quick and easy.

AUTOMATIC CALCULATIONS
Results are calculated and displayed as you key in the numbers.

QUICK RESET
Tap the clear button in any of the boxes to reset the calculation.

MULTI-PURPOSE
Enter a value in any of the three input fields, and the other two fields will be calculated from that. 

UNIVERSAL APP
GST Kiwi is a Universal app, meaning you only buy it once and can install it for free on your iPhone, iPad, or Mac


## Version history (last 4 releases)

### 3.0 — 2025-07-22

v3.0 is a complete rebuild with all the old features you love, and a few key improvements:
- copy buttons for each field
- double-tap to paste in any field
- settings to customise behaviour
- dark mode

### 2.0 — 2017-05-02

This update from Apple will improve the functionality of this app. No new features are included.

- 64-bit compatibility added to allow app to function on future versions of iOS.
- Updated UI for devices with 4.7 inch and 5.5 inch screens.
- New flat UI

### 1.1 — 2013-01-29

- Changed layout for an easier-to-read order: 'Excluding GST', 'GST', then 'Including GST'.  Number entry still defaults to 'Including GST' first.
- Fixed the calculation error which gave a 17.65% rate instead of 15%.  This error came about by mixing the GST exclusive and GST inclusive amounts up in the formulas.  We're very sorry for this huge mistake; it's fixed now, and won't happen again.

### 1.0 — 2012-12-21

No release notes.

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All apps by Chewy Applications: https://appshunter.io/developer/415417492

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*