# Calculator⁻ — user reviews > 97 indexed App Store user reviews of Calculator⁻ by UniCom Technology, rated 4.40/5 from 3,595 ratings. - Source: https://appshunter.io/ios/app/calculator/id1327796464/reviews - App overview in markdown: https://appshunter.io/ios/app/calculator/id1327796464.md - Rating breakdown: 5★ 2,589 · 4★ 422 · 3★ 227 · 2★ 96 · 1★ 261 ## What do users think of Calculator⁻? Overall sentiment: negative **Pros** - 👍 Easy to use - 🚀 Efficient calculations - 💡 Retro design - 👍 Simple and straightforward **Cons** - 🐛 Decimal point issues - 🐛 Incorrect calculations - 🐛 Broken buttons - 🔍 Confusing button layout **Commonly reported bugs** - Decimal point problem: .5 becomes 5 - Button that should be 7 shows as 9 and gives 9 when used - Percentage button does not work correctly **Most requested features** - Backspace button - Percentage button that works properly - Arrange buttons in standard calculator layout ## Newest reviews (10 of 97) ### 3/5 — Decimal point problem *2025-11-03* I found that if I multiply a number by .5 for example the number reverts to 5 not .5 so multiplying 2 by .5 gives 10 not 1. You have to use 0.5 and not .5 for it to work. **Developer response:** Thank you for your feedback. We appreciate the clarification and will consider improving the input handling in future updates. ### 3/5 — Geri tuşu *2025-09-15, version 1.13* Hatalı bir sayı yazdığınızda tekrar baştan başlamanız gerekiyor 😞 ### 1/5 — 計算出来ません。 *2025-02-18, version 1.11* 7のボタンがありません。 ### 1/5 — BEST Is Wrong. *2025-01-05* Ever since Apple updated their calculator with a stupid backspace button(???), I’ve been looking for a replacement. It’s amazing how many DON’T have a percentage button them. This calculator has one, but it doesn’t work properly. Try: 100 x 50%. You’ll get 5000. Additionally, the basic arithmetic buttons are not in standard positions like on a real calculator. This makes it confusing to use. My search continues… **Developer response:** Hello NickNameWasTaken956, Thank you for your feedback and for giving our app a try! We’re sorry to hear that the percentage button isn’t working as expected, and we appreciate you pointing it out. We’ll look into this issue and work on fixing it in a future update. We also understand your concerns about the button layout. Our goal is to make the app as user-friendly as possible, and your feedback is valuable for improving the design. Thank you again for your insights, and we hope to provide a better experience in future updates. Best regards, MAtrix Software Team ### 1/5 — ? *2024-10-28, version 1.10* ? ### 1/5 — Rubbish. *2024-10-04* Apart from asking me if I’m enjoying the app before I’ve even used it, it’s coming up with the wrong answer in the calculation I used to test it. Immediately deleted. ### 3/5 — Calculate r *2024-08-26, version 1.10* Does have decimal points! ### 1/5 — Calculator *2024-01-19, version 1.10* Easy to use ### 4/5 — Please hide audio button *2024-01-17* (Using this solely for its vintage look and feel for writing “calculator words”) The audio symbol makes it hard to screenshot anything with more than 7 characters. Otherwise, looks great! ### 5/5 — GuEl *2023-09-30, version 1.10* Guzel ## Most critical reviews (10 lowest-rated) ### 1/5 — Remove the m functions, %, and /sqrt! *2026-06-28* Very bad calculator, needs limit to be 1000 in order to be an elementary calculator, too many pop up ads, no difference between 0.2 and 2, too many problems I WONT COUNT IT ANYMORE!!!!!!!!! **Developer response:** Thank you for your feedback. We're sorry to hear that the app did not meet your expectations. We take your comments about ads, calculation limits, and display issues seriously. We will review your suggestions and continue improving the app to provide a better experience. ### 1/5 — No scientific functions! *2026-06-22, version 1.13* there is no radians, degrees, x root, x^2, !, x^y, ran, sin, cos, tan, log, in, e, π, τ, φ, integral, Σ, Π, and lots of others, add 1.2 ### 1/5 — Bad advertising hackers *2026-03-13, version 1.13* Sorry it’s bad. Covered in pop up adds ### 1/5 — Calculator reviewing expert *2026-01-05* Used to have numbers that could make hello upside down but now has number 4 as a normal number 4 not as a four that looks like a h. **Developer response:** Thank you for your feedback. We understand your observation about the number display. We’ll take this into account for future updates to improve the app experience. ### 1/5 — Brak siedem *2025-03-12, version 1.12* Brak cyfry siedem, zamiast siódemki jest dziewiatka ### 1/5 — Two number nines? *2025-03-02, version 1.11* Who does that on a calculator? ### 1/5 — Broken app *2025-02-22* The button that should be 7 shows as a 9 and also gives a 9 when used. App is unusable like this, can’t believe the recent update hasn’t been fixed or rolled back yet ### 1/5 — 計算機 *2025-02-20, version 1.11* 今見たら前のと変わっていて見にくくて使いにくいです ### 1/5 — Sıfır teknoloji *2025-02-18, version 1.11* Klavyede iki tane dokuz var yedi yok. Basınca da ikisinde de dokuz çıkıyor. ### 1/5 — Error *2025-02-18, version 1.11* Correct the error. Instead of the number 7, there is the number 9. ## Most praised reviews (10 highest-rated) ### 5/5 — Calculator *2025-05-16* Works real easy best one **Developer response:** Thank you for your kind words! We’re glad you find the calculator easy to use and helpful. Development Team ### 5/5 — 数字が6 *2025-03-05, version 1.11* 数字が6の所9になっていて修正されない ### 5/5 — Calculator *2025-02-18* This is rubbish the calculator has no number 7 ### 5/5 — BEST Is Right! *2024-12-12* Ever since Apple updated their calculator with a stupid backspace button(???), I’ve been looking for a replacement. It’s amazing how many DON’T have a percentage button them. This calculator is great! Simple and efficient. My only request would be to arrange the buttons like they are on a real calculator. For some reason, the basic math buttons are mixed up. ### 5/5 — Hopeful *2024-09-06* I have used it for one calculation but it seems about like the one that got lost, which was good enough for more me. ### 5/5 — Love it *2024-05-12, version 1.10* Works great ### 5/5 — I like this calculator *2024-02-05* This is the kind of calculator that I”ve looking for , it”s simple and easy to use for everyday calculation ### 5/5 — Çok başarılı *2023-12-15, version 1.10* Reklama takılmadan kullanabilirsiniz. ### 5/5 — The best *2023-12-01* Cherry Express gives it five stars ### 5/5 — Good *2023-11-04* I can write sheesh so I like it 5 stars --- *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 2026-08-30.*