# Calculator Keyboard - Calku — user reviews > 56 indexed App Store user reviews of Calculator Keyboard by Supagarn Pattananuchart, rated 4.70/5 from 494 ratings. - Source: https://appshunter.io/ios/app/calculator-keyboard-calku/id1546065778/reviews - App overview in markdown: https://appshunter.io/ios/app/calculator-keyboard-calku/id1546065778.md - Rating breakdown: 5★ 431 · 4★ 30 · 3★ 12 · 2★ 7 · 1★ 14 ## What do users think of Calculator Keyboard? Overall sentiment: positive **Pros** - 👍 Very useful application - 🚀 Handy calculator within keyboard - 💡 Innovative idea for an app - 👍 Easy to use - 🔒 Respects user privacy - 💰 Good value for paid features - ✨ Simple and effective - 💯 Best calculator app - 👍 Works flawlessly - ✅ No bugs reported **Cons** - 🐛 Cannot delete the app - 🐛 Buggy at times - 🐛 Non-standard division/multiplication symbols - 🐛 Incorrect calculations - 🐛 Doesn't work on all apps initially - 🐛 Difficult to add keyboard - 🐛 No scientific calculator **Commonly reported bugs** - Cannot delete the app - App is buggy sometimes - Non-standard division and multiplication symbols not recognized by other apps - Incorrect calculations (e.g., 3.10 / 1000 = 0) - App only works on Apple Mail and Notes initially - Cannot get it to 'Add Keyboard' on specific devices/iOS versions - No scientific calculator available **Most requested features** - Add thousands separator for numbers - Haptic feedback on key presses - Option to hide computation in text box - History button on main page - Option for standard multiplication and division - Add scientific/accountant calculator - Add Pi, square root, etc. to calculator - Vibration on touch ## Newest reviews (12 of 56) ### 4/5 — 没有中文版 *2026-06-06* 差评 ### 4/5 — Nice one *2024-12-29* Good calculator keyboard, but require hepatic on pressing keys also pop up keys. ### 4/5 — tim *2024-07-29, version 3.4* the ### 5/5 — Hay *2023-11-24, version 3.2* Thêm cái máy tính vào bàn phím, quá tiện ### 5/5 — Mua 49K cho một tiện ích lâu dài👍 *2023-05-14, version 3.1* Chất lượng Ok, đầy đủ bàn phím Science, dễ tính toán công thức khó như: tính lãi suất,…. Dễ sử dụng. 5⭐️ ### 5/5 — Good app *2023-05-07, version 3.1* Dri kalkulator lain, bagusan ini… Tolong tambahkan fitur haptic nya, biar tambah sempurna!! ### 5/5 — History button *2023-04-16, version 3.1* Thank you for great app Please bring history button to main page ### 5/5 — تطبيق جميل جداً *2022-12-18, version 3.1* يخليك تستغني عن الخروج من المحادثة علشان تحسب على حاسبة الجهاز ### 5/5 — Free good keyboard *2022-09-13, version 3.1* Like ### 5/5 — or works fine, but *2022-08-21* it is a pity, that it doesn’t work with German keyboard, because there the decimal is a “,” and the thousand separator ist the point. I would like to buy the pro, when this feature comes. ### 5/5 — 簡單方便 *2022-06-22, version 2.7* 真的是簡單又方便 而且還有重複按鍵 而且鍵盤位置設計的很好，完全不會卡到任何東西，真的棒 ### 5/5 — so nice *2022-04-23, version 2.5* more than smart! ## Most critical reviews (10 lowest-rated) ### 1/5 — Fake *2026-05-27, version 3.9* Does not actually add a calculator to your normal keyboard ### 1/5 — Really Bad Advertisement *2025-02-21, version 3.7* Cannot use text saving at all ### 1/5 — Doesn't work *2024-05-10, version 3.2* Worthless app. I installed it and it doesn't work ### 1/5 — No purchase *2022-09-13* Free app enough ### 1/5 — Doesn’t work in iPad Pro 2021 iOS 14.6 *2021-05-31, version 2.1* Can’t get it to “Add Keyboard” on iPad Pro 2021 iOS 14.6. Instructions leave a lot to be desired. Not recommended. ### 1/5 — ? *2021-05-16* Impossible d’aller plus loin que les « Settings ». Incompréhensible ! Taking off **Developer response:** Merci pour votre commentaire. Calku est votre calculatrice à clavier, donc si vous souhaitez l'utiliser, cliquez sur le bouton Globe de votre clavier pour sélectionner Calku. Si vous avez besoin de plus d'informations, veuillez nous contacter au developer@supagarn-pa.com ### 2/5 — 打字没有震动 *2023-11-16* 打字没有震动 ### 3/5 — Super *2024-12-13* Very useful application ### 3/5 — no scientific calculator *2024-03-14, version 3.2* bug點了沒法report 買了以後也沒有科學計算機 ### 3/5 — Non standard division and multiplication *2023-03-15, version 3.1* This app seemed so promising that I bought the premium version. Unfortunately, it uses what seems to be a Unicode version of division and multiplication which isn't recognized by my math application. Bit of a deal breaker. Please add an option for standard multiplication and division. ## Most praised reviews (10 highest-rated) ### 5/5 — Best Keyboard ever *2026-05-29, version 3.9* 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! ### 5/5 — 不能计算整数➗小数 *2025-07-10* 平时挺好用的，就是为什么不能计算整数➗小数 ### 5/5 — Fix pls *2025-04-30, version 3.7* Thêm dấu phẩy phân cách hàng ngàn ở các số đầy đủ luôn nha ### 5/5 — It now works after a restart! It only works on apple mail and apple notes????? *2025-03-29, version 3.7* Update: switching to 5 stars since it now finally works on all my apps after restarting my phone! What is going on? The app only works on apple mail and notes? I might need a refund in this case! I am using it on the latest ios public build on an iPhone 15 pro max ### 5/5 — 棒 *2025-03-17, version 3.7* 超方便，超好用 ### 5/5 — pro，lifetime限免 *2024-12-14* pro，lifetime限免 ### 5/5 — I made it five stars so you can be aware ⚠️ *2024-10-08, version 3.4* I think it’s good but I can’t delete it! Please delete this on my account!!!!!! I hate having it ### 5/5 — Best calculator app ever!! *2024-08-18, version 3.4* 999999+99999=1,099,998 ### 5/5 — Very nice *2024-05-28, version 3.2* Very nice and handy Only thing I wish it had is vibration on touch. ### 5/5 — Great utility. *2024-01-13, version 3.2* 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. --- *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 2026-09-04.*