AppCorpus
Market US

Calculator Keyboard - Calku

by Supagarn Pattananuchart

iPhone · iPad

Active Last checked 7 Aug 2026

Quick verdict

What it is
Store information collected; independent summary not yet available.
At a glance
  • From $0.99/mo
  • Free to download
  • In-app purchases

Categories and search queries

Official categories

AppCorpus categories

Key functions

Function Availability Access Scope Evidence
Free app Yes Free Store published
In-app purchases Yes Limited free Store published

Screens

App Store

23 store screenshots

Calculator Keyboard - Calku ipad screenshot 1
Calculator Keyboard - Calku ipad screenshot 2
Calculator Keyboard - Calku ipad screenshot 3
Calculator Keyboard - Calku ipad screenshot 4

Pricing & paywalls

App Store

  • Calku PRO (1 Month) — $0.99/month
  • Calku Pro - Lifetime — $5.99

Ratings & reviews

App Store

4.7 490 ratings · App Store

  1. 5/5Calku Works Great!

    I came into this app by accident as I was not looking for a calculator, but I must say this app really works great! I have found this app comes in handy to do a quick calculation while in other apps. The app is easy to use and performs well. My thanks to the developers for a simple app that performs great. Job well done!

    Scott1155 · 7 Aug 2026

  2. 5/5Great utility.

    Makes using the keyboard much easier. Makes using calculations much easier than using the dedicated keys on a alpha numeric type keyboard on a standard keyboard layout. Very helpful when using iMessages when showing calculations to others.

    britnan159 · 7 Aug 2026

  3. 5/5History button

    Thank you for great app Please bring history button to main page

    Ali Asghari · 7 Aug 2026

  4. 5/5I made it five stars so you can be aware ⚠️

    I think it’s good but I can’t delete it! Please delete this on my account!!!!!! I hate having it

    ceazy kitty · 7 Aug 2026

  5. 5/5Best Keyboard ever

    Exactly what I needed!!! Calculator in my notes app, in my messages. Makes budgeting a breeze, only thing its missing is dollar signs and some formatting!

    Burgleyourturts · 7 Aug 2026

Privacy & accessibility

App Store

Privacy

  • Data Not Collected Developer declared

Accessibility

No accessibility labels collected yet.

Versions

App Store

  • 1.5

    • Performance improvements • Bug fixes

  • 1.6

    • Performance improvements • Bug fixes

  • 1.7

    - UI and performance improvements. - Bug fixes.

  • 1.8

    - Bug fixes.

  • 1.9

    - Bug fixes.

  • 2.0

    - Bug fixes.

  • 2.1

    - Bug fixes.

  • 2.2

    - Bug fixes.

  • 2.3

    - Bug fixes.

  • 2.4

    - Performance improvements - Bug fixes

  • 2.5

    - Bug fixes

  • 2.6

    - Bug fixes

  • 2.7

    - Bug fixes

  • 2.8

    • Performance improvements • Bug fixes

  • 2.9

    • Performance improvements • Bug fixes

  • 3.0

    • Performance improvements • Bug fixes

  • 3.1

    • Performance improvements • Bug fixes

  • 3.2

    • Performance improvements • Bug fixes

  • 3.3

    • Performance improvements • Bug fixes

  • 3.4

    • Performance improvements • Bug fixes

  • 3.6

    • Performance improvements • Bug fixes

  • 3.7

    • Performance improvements • Bug fixes

  • 3.8

    • Performance improvements • Bug fixes

  • 3.9

    • Performance improvements • Bug fixes

  • 4.0 · 26 Jul 2026

    • Performance improvements • Bug fixes

Alternatives

Availability by market

Data quality & evidence

Page completeness
Live store listing
Last verified
7 Aug 2026
Sources
App Store

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