# Calculator PanecalST — Allow you to modify formulas. > Advanced calculator for editing, reusing, and checking formulas with history. (iPhone/iPad app by Noriyasu Kutsuzawa.) - Source: https://appshunter.io/ios/app/calculator-panecalst/id702821889 (this page in markdown: same URL + `.md`) - Developer: [Noriyasu Kutsuzawa](https://appshunter.io/developer/668500806) - Category: Utilities, Productivity - Price: Free - Rating: 4.80/5 from 94 App Store ratings · 33 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 33 MB - Languages: Russian, American English, Indonesian, European Spanish, German (Germany), European Portuguese, Chinese (Traditional, Taiwan), Chinese (Simplified, China), French (France), Japanese - Released: 2013-09-16 - Data updated: 2026-08-26 - Monetization: ad-supported - User reviews in markdown: https://appshunter.io/ios/app/calculator-panecalst/id702821889/reviews.md ## What is Calculator PanecalST? This is calculator app that allows you to display and modify formulas. It allows you to enter formulas while checking them, which prevents you from typing incorrectly or making calculation errors. It is also possible to reuse past formulas to change only certain values to calculate them. The cursor indicates on the display, and you can tap or press the arrow keys to quickly navigate to where you want to edit. It has a powerful, flexible and intuitive user interface with support for swiping to scroll through formulas and long-tap to copy and paste. [ Features ] - Easy operation for editing formulas - Re-calculation by using history - Four arithmetic operations, root, percentages, time, tax and parentheses calculations - Memory, M+, M-, MR, MC - Scroll up/down lines - Cut, copy and paste - Expressions history and answer history - Grouping separator and decimal point - Various settings (Long tap MENU key) [ What do you use "Calculator" for ] - General calculator - Tax and VAT - Sales, profit and cost - Split a payments at restaurant - Long formulas calculation - Formula include parenthesis - Elapsed time, time addition and subtraction, production time, costing from time [ Four arithmetic operations ] 1 + 2 - 3 × 4 ÷ 5 = 0.6 　 [ Time calculation ] 16:15 - 12:45 = 3:30:00 1.5 × (16:15 - 12:45) = 5:15:00 Press [H:M:S] key for changing value after calculation. =5.25 [ Root calculation (Long press)] √( 2 × 2) = 2 　 [ Percentage calculation ] 500 + 20% = 600 500 - 20% = 400 500 × 20% = 100 100 ÷ 500% = 20 　 [ Tax calculation ] 500 Tax+ = 525 525 Tax- = 500 　 [ Parenthesis calculation ] ( 1 + 2 ) × ( 3 + 4 ) = 21 ( 1 + 2 ) ( 3 + 4 ) ( 5 + 6 ) = 231 　 [ Grouping separator and decimal point ] 123,456,789.1 + 0.02 = 123,456,789.12 123.456.789,1 + 0,02 = 123.456.789,12 (Depends on setting) 　 [ Display ] Calculator indicates long expressions on the display. If you may mistake to input expressions, you can correct this expressions easily and quickly using by back space key, arrow keys and C(clear) key. [ Re-play and history functions ] Calculator has "Re-play function". It indicates expressions that you inputted in the recently using by △(re-play)key. If you long-press re-play key, expressions history table is available. [ Last answer and history functions ] Last answer is that indicates the last calculation result by using Ans key. If you long-press Ans key, a last answer history table is available. [ Percent calculator ] If you would like to calculate “20% more $50”, you can input 50+20% and get a result. [ Tax calculator ] This calculator can store tax rate in the setting. And you can get price including / excluding tax easily and quickly using by Tax+/Tax- keys. [ Disclaimer ] Please note in advance that Appsys is not responsible for any damage or lost profits caused by the use of this software, or any claims from third parties. ## Key features - Edit formulas as you type - Reuse past calculations - Navigate and edit with cursor - Cut, copy, and paste expressions - Time and tax calculations - History of expressions and answers ## Recent user reviews (10 of 33) All indexed reviews: https://appshunter.io/ios/app/calculator-panecalst/id702821889/reviews.md ### 5/5 — Best Calculator *2026-06-13* This calculation is the best ever been created bc it also keeps records on the screen for as long as you want if you don’t push the AC green button. ### 5/5 — １００点 *2026-04-11* 凄く良いです。 他は使えないです。 ### 1/5 — 钛差啦 *2026-04-06* 收费也是真行 ### 5/5 — 使いやすい *2025-10-19* 言うこと無し ### 1/5 — 入れてはダメ！ *2025-10-09* ウイルスのようなアプリです。 開くと「ストレージがいっぱいです」と警告が出て慌てさせてくれます。 実は別のアプリ（ウイルスか？）へ導くという悪質なアプリです。 ### 5/5 — これ本当に無料！良すぎる。 *2025-08-28* 最低限のものが、全て揃っていてしかも、LINE等する時に計算履歴が全て残る為、一々計算せずに1度で済む。 暫く使用し、使い慣れた時に有料版にする予定です。 ### 4/5 — AC *2025-07-23* ACの位置と0が近くて誤って全て消してしまうという地味な不便さがなければパーフェクトなくらい使いやすいのに ### 1/5 — %不能计算 *2025-02-27* 比如4%按等号，得出一串字母 ### 4/5 — 計算履歴、訂正が出来るのはいいが… *2025-01-28* ACを誤タップして全て消えたことが何度かある。 本当に消すかどうか確認の画面があれば、ほぼ完璧なアプリだと思いました。 ### 4/5 — 広告の音声がうるさくなった！ *2025-01-26* お世話になっております。もう5年以上ご利用させて頂いております。非常に使いやすく、愛用していましたが、先日のアップデート以降、広告から音声が出るようになり、ビックリしました。なんとかなりませんか？このままだと多分、アンイストールすると思われます。ご検討よろしくお願いします。 **Developer response:** ご不便をおかけしております。広告音声が出ないように修正いたします。しばらくお待ちいただけますと幸いです。 ## Frequently asked questions about Calculator PanecalST ### Does Calculator PanecalST have ads? Yes, Calculator PanecalST contains advertisements. This is how the app remains free for users to download and utilize its advanced features. ### How does Calculator PanecalST handle formula editing? Calculator PanecalST allows you to see and modify formulas as you enter them. A cursor indicates your position, and you can use arrow keys or swipe gestures to navigate and correct mistakes quickly. ### Can I reuse previous calculations in Calculator PanecalST? Yes, Calculator PanecalST features a 'Re-play function' that lets you access past expressions. You can then modify specific values in these historical formulas to perform new calculations. ### What types of calculations does Calculator PanecalST support? Calculator PanecalST supports four basic arithmetic operations, roots, percentages, time, tax, and parentheses calculations. It also includes memory functions (M+, M-, MR, MC). ### How often is Calculator PanecalST updated? Calculator PanecalST was last updated on March 4, 2025, indicating active development and support. Updates typically include bug fixes and feature enhancements. ### What devices is Calculator PanecalST available on? Calculator PanecalST is available for iPhone, iPad, and iPod touch devices, making it accessible to a wide range of Apple users. ### What is the age rating for Calculator PanecalST? Calculator PanecalST has an age rating of 4+, meaning it is suitable for users of all ages. The app's functionality is straightforward and does not contain mature content. ### How does Calculator PanecalST compare to other calculators? Calculator PanecalST stands out with its ability to display and edit entire formulas, unlike basic calculators. Its intuitive UI for editing and reusing past calculations offers a significant advantage for complex tasks. ## Version history (last 5 releases) ### 6.3.7 — 2026-06-19 - Fix minor bugs. ### 6.3.6 — 2026-05-12 - Updated libraries. ### 6.3.5 — 2025-03-04 - Updated libraries. ### 6.3.4 — 2025-02-04 - Fixed a minor problem. ### 6.3.3 — 2025-01-20 - Updated libraries. ## Apps similar to Calculator PanecalST | App | Rating | Price | Category | | --- | --- | --- | --- | | [Simple Calculator.](https://appshunter.io/ios/app/simple-calculator/id1324926551) | 4.6 (1,599) | Free | Utilities | | [Calculator Max](https://appshunter.io/ios/app/calculator-max/id364905554) | 4.3 (1,766) | Free | Utilities | | [Calculator-Math Toolbox](https://appshunter.io/ios/app/calculator-math-toolbox/id1561702545) | 4.7 (342) | Free | Utilities | | [DayCalc - Note Calculator](https://appshunter.io/ios/app/daycalc-note-calculator/id661506264) | 4.7 (126) | Free | Utilities | | [BCalc - a daily calculator](https://appshunter.io/ios/app/bcalc-a-daily-calculator/id667240643) | 4.7 (244) | Free | Utilities | | [SwiftSum: Simple Calculator](https://appshunter.io/ios/app/swiftsum-simple-calculator/id1610829871) | 4.6 (66) | Free | Utilities | ## More apps by Noriyasu Kutsuzawa - [Panecal Scientific Calculator](https://appshunter.io/ios/app/panecal-scientific-calculator/id668500803) - [Panecal Plus Sci. Calculator](https://appshunter.io/ios/app/panecal-plus-sci-calculator/id672649451) - [Calculator PanecalST Plus](https://appshunter.io/ios/app/calculator-panecalst-plus/id702784955) - [Figure calculator ShapeInfo](https://appshunter.io/ios/app/figure-calculator-shapeinfo/id914310828) - [ShapeInfo Plus](https://appshunter.io/ios/app/shapeinfo-plus/id983851989) All apps by Noriyasu Kutsuzawa: https://appshunter.io/developer/668500806 --- *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 2026-08-26.*