# This is Calculator — Basic calculator without ads > Ad-free basic calculator with history notes and copy-paste functionality. (iPhone/iPad app by Cheolchan Um.) - Source: https://appshunter.io/ios/app/this-is-calculator/id1617020830 (this page in markdown: same URL + `.md`) - Developer: [Cheolchan Um](https://appshunter.io/developer/1616611532) - Category: Productivity, Utilities - Price: Free - Rating: 4.36/5 from 14 App Store ratings · 9 written reviews indexed - Age rating: 4+ - Requires: iOS 15.4 · 1 MB - Languages: English, Korean - Released: 2022-04-02 - Data updated: 2026-06-05 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/this-is-calculator/id1617020830/reviews.md ## What is This is Calculator? Simple Calculator with simple layout, without ads * You can make a simple note on each result in History * You can Copy & Paste result in History ## Key features - Ad-free experience - Simple layout - History with notes - Copy and paste results - Basic calculation functions ## Recent user reviews (9 of 9) All indexed reviews: https://appshunter.io/ios/app/this-is-calculator/id1617020830/reviews.md ### 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. ### 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! ### 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 — 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! ## Frequently asked questions about This is Calculator ### Does This is Calculator have ads? No, This is Calculator is designed to be completely ad-free, providing an uninterrupted user experience for all your calculations. ### What devices does This is Calculator support? This is Calculator is available for iPhone, iPad, and iPod Touch, ensuring compatibility across various Apple devices. ### How often is This is Calculator updated? The latest version, 1.0.3, was released on August 20, 2023. While specific update frequency isn't detailed, it has received updates since its release on April 2, 2022. ### What is the age rating for This is Calculator? This is Calculator has an age rating of 4+, making it suitable for a wide range of users. ### Can I add notes to my calculations in This is Calculator? Yes, you can make simple notes on each result directly within the History feature of This is Calculator. ### How does This is Calculator handle calculation results? Results can be easily copied and pasted from the History section, and you can also add brief notes to each calculation. ### What is the user sentiment for This is Calculator based on ratings? This is Calculator has a positive user sentiment, indicated by an average rating of 4.4 stars from 14 ratings. ## Version history (last 4 releases) ### 1.0.3 — 2023-08-20 Now You can turn off the button sound! ### 1.0.2 — 2022-07-26 Minor layout fix ### 1.01 — 2022-04-16 Landscape mode for iPad ### 1.0 — 2022-04-02 No release notes. ## Apps similar to This is Calculator | App | Rating | Price | Category | | --- | --- | --- | --- | | [네이버 메모 – Naver Memo](https://appshunter.io/ios/app/naver-memo/id451086610) | 2.6 (1,346) | Free | Productivity | | [메모달력](https://appshunter.io/ios/app/id1588707980) | 5.0 (1) | Free | Productivity | | [두줄캘린더메모](https://appshunter.io/ios/app/id1618051964) | 5.0 (1) | Free | Productivity | | [Padqlo](https://appshunter.io/ios/app/padqlo/id1643772832) | 5.0 (3) | $0.99 | Productivity | | [QwikCards](https://appshunter.io/ios/app/qwikcards/id421384017) | 4.3 (7) | Free | Productivity | | [ToDo Calendar - dolfy](https://appshunter.io/ios/app/todo-calendar-dolfy/id6449158861) | 4.4 (8) | Free | Productivity | ## Related topics [cheolchan um](https://appshunter.io/ios/topics/cheolchan-um) --- *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.*