# This is Calculator — user reviews

> 9 indexed App Store user reviews of This is Calculator by Cheolchan Um, rated 4.36/5 from 14 ratings.

- Source: https://appshunter.io/ios/app/this-is-calculator/id1617020830/reviews
- App overview in markdown: https://appshunter.io/ios/app/this-is-calculator/id1617020830.md
- Rating breakdown: 5★ 9 · 4★ 3 · 3★ 1 · 2★ 0 · 1★ 1

## Most critical reviews (9 lowest-rated)

### 4/5 — My favorite but one little problem

*2024-02-14*

Love this - it’s simple, looks clean, with no ads. There is one little bug; a leading . (point) is ignored. So if you type in 5x.4 for instance it turns into 5x4. Easy to work around, instead type in 5x0.4. But it should be fixed.

### 4/5 — Thank you!

*2023-09-27*

Screw Apple for not having this type of basic app included and allowing the options being either overpriced apps or free apps with infuriating ads. My deep appreciation to the dev’s for a third reasonable option

### 4/5 — Great app, annoying clicking noise

*2023-08-07*

Great, simple app, but there is no way to mute the keyboard clicking noise.

**Developer response:** Thank you for your review. Mute will be available in the new version.

### 4/5 — History and sound

*2023-05-31*

There is no way to turn these off, no settings.

**Developer response:** Thank you for your feedback. I will keep that in mind and upload soon!

### 5/5 — The ONE calculator app for basic on the fly math

*2024-02-13*

This app is really a gem! 

Obviously it does what we want it to do! Add, subtract, multiply and divide. 
Still glad I learned math from Mrs Brommel back in, the mid sixties, she was tough. But now, quick, arithmetic without the developer knowing what color underwear I use. By-the-way, SuperMan underroo’s to be exact. 
Thank you Cheolchan Um!

### 5/5 — Great little calculator - and no ads!

*2024-01-07*

I love the sleek look, the button sounds and the ability to turn them off. Thank you for providing a smart personal app for basic daily use. It is great!!

### 5/5 — Best and simple no ad calculator with no tracking!

*2023-12-27*

Very simple and keeps calculation tab on left of keypad.  No pop up ads to wait through!  Thank you very much!

### 5/5 — Calculator

*2023-05-31*

This is the one I love. Get to see all the bills I paid until I remove for next month bills. If I get a notice that I have not paid one I can look back at my calculations and see if I missed it. Great job. Wish all apps were as simple and easy to use as this app.

**Developer response:** Thank you! I am so happy to hear that my app did something good for you!

### 5/5 — Love this calculator

*2023-03-04*

Simple, uncomplicated, and keeps a history. No adds. Free. 

I like this so much I’d probably pay a small fee for it. Try it

**Developer response:** Thank you for your comments!

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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 2026-06-05.*