# Calk-AU: Aussie Calculators — Tax, pay, mortgage, super, GST

> Tax, pay, mortgage, super, GST (iPhone/iPad app by Konstantin Iakovlev.)

- Source: https://appshunter.io/ios/app/calk-au-aussie-calculators/id6776521018 (this page in markdown: same URL + `.md`)
- Developer: [Konstantin Iakovlev](https://appshunter.io/developer/1896744607)
- Category: Finance, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 95 MB
- Languages: American English
- Released: 2026-06-11
- Data updated: 2026-09-22
- User reviews in markdown: https://appshunter.io/ios/app/calk-au-aussie-calculators/id6776521018/reviews.md

## What is Calk?

Calk-AU puts 124 free Australian calculators in your pocket — tax, pay, mortgage, super, GST and far more — all built on the current 2025–26 ATO rates.

No sign-up. No paywall. And it works 100% offline: run any calculation on the train, in a meeting or out of range. When the rates or rules change, the app updates its formulas automatically — so your numbers are always current.

KNOW YOUR REAL MONEY
• Income Tax — 2025–26 brackets, Medicare levy and the low-income offset
• Pay Calculator — take-home pay after tax, super and HECS
• HECS-HELP — the new marginal repayment system
• GST — add or remove 10% in a tap
• Capital Gains, FBT, PAYG, payroll tax and more

PROPERTY & LENDING
• Mortgage repayments, offset savings and extra-repayment scenarios
• Borrowing power, LMI, stamp duty and first-home-buyer help by state
• Car, personal and comparison-rate loan tools

SUPER, BUDGET & LIFE
• Superannuation, employer contributions and pensions
• Budget planner, net worth, compound interest and FIRE
• Health, vehicle and energy calculators

MADE FOR THE APP
• Save any calculation to your history
• Favourite the tools you use most
• Share results via WhatsApp, email or SMS
• Light and dark mode

Every formula is based on official ATO, Services Australia and state-revenue rules, with clear breakdowns so you can see exactly how each number is worked out.

Calk-AU is free to use. It provides estimates for general information and isn't financial or tax advice.


## Version history (last 3 releases)

### 1.2 — 2026-08-11

• New: Remove ads — a one-time purchase that turns off all ads forever (find it in the footer)
• Or watch a short video for 24 hours ad-free
• Restore purchases works across your devices
• All 130 calculators are on current FY 2026-27 rates

### 1.1 — 2026-07-07

Updated for the 2026–27 financial year: new income-tax brackets, HECS/HELP repayment thresholds, super contribution caps, and refreshed state duty, rego and Centrelink figures. Plus performance and stability improvements.

### 1.0 — 2026-06-11

No release notes.

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| [MortgagePayAU](https://appshunter.io/ios/app/mortgagepayau/id6761395952) | — | Free | Finance |
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| [EZRemit](https://appshunter.io/ios/app/ezremit/id1532184848) | 5.0 (1) | Free | Finance |
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## More apps by Konstantin Iakovlev

- [Calk.kg](https://appshunter.io/ios/app/calkkg/id6771220038)
- [Calk NZ](https://appshunter.io/ios/app/calk-nz/id6774464665)
- [Calks.UK – UK Calculators](https://appshunter.io/ios/app/calksuk-uk-calculators/id6776149190)
- [Calk24 – Rechner & Steuer](https://appshunter.io/ios/app/calk24-rechner-and-steuer/id6778639049)
- [Calk USA](https://appshunter.io/ios/app/calk-usa/id6778818228)

All apps by Konstantin Iakovlev: https://appshunter.io/developer/1896744607

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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 2026-09-22.*