# iCalcline > Modern iOS algebra calculator for expressions with variables and functions. (iPhone/iPad app by Roberto Panetta.) - Source: https://appshunter.io/ios/app/icalcline/id432947683 (this page in markdown: same URL + `.md`) - Developer: [Roberto Panetta](https://appshunter.io/developer/1438480110) - Category: Productivity, Education - Price: $0.99 - Rating: 1.00/5 from 1 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 15.6 · 1 MB - Languages: American English - Released: 2011-04-24 - Data updated: 2026-08-21 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/icalcline/id432947683/reviews.md ## What is iCalcline? iCalcline is a modern algebra calculator for iOS It can solve math expression with any level of parenthesis and functions You can use algebraic expression with numeric values and or variables constant names You can use in expression the variables and constants you created in the internal tables: 'alpha=bravo+K_1' (bravo will be taken from the variable table, K_1 from the const table and alpha will be assigned or created in the variable table) You can create, manipulate, delete and use how many variables you like inside the app. The internal iOS keyboard provides helpers to insert available functions, variables, constants, operators. Result is displayed immediatly. KEY POINTS • Evaluates mathematical expressions with parentheses, nested functions, variables and constants • Easy to use • The user simply inserts an expression and iCalcline displays the result • Variable creation and reference inside expressions are very easy using an interactive list. FEATURES • Algebra made easy and simple • Manages any nested level of parentheses using the correct precedence • Check your expression syntax in advance signaling errors • Can use an internal variable and constant table with editable values • You can manages unlimited numbers of variables and constant you like in the internal tables. • You can use in expression the variables and constants you created in the internal tables: 'alpha=bravo+K_1' (bravo will be taken from the variable table, K_1 from the const table and alpha will be assigned or created in the variable table) • Customized keyboard with Functions, variables table, constants table and frequent used symbols available to insert with a single touch • Can change on the fly calculation precision (up to 9 decimals thanks to use of long double calculation) • Variable font sizes • Select a variable or a value and inserting a function will wrap it inside the function parenthesys • Uses decimal and group separator in accordance with your local settings • Full log of executed calculations • Optional step by step solving showing all the mathematical passages in the log. • Retains values over successive re-launch • DEG° and RAD calculation for trigonometric functions • Based on a custom fast calculation engine and used also on macOS in Calcline and TS Calc (available on the Mac App Store). • Uses long double calculation (High precision with up to 9 decimal digit precision) • Works great in Portrait and Landscape mode • Works great on iPad as SlideOver FACILITIES: • A calculation area where you can insert algebraic expressions and immediatly see the result as you type • A Variable table where you can insert infinite variables with custom values, Variables can be created as result of calculations (x=1+1) will create automatically the variable x inside the table assigning the value = 2 • A constant table with constant value usable in calculations. Off course constant can't be assigned by calculation • A log with all the result , available step by step or in concise format AVAILABLE FUNCTIONS sqrt cbrt sin cos tan asin acos atan sinh cosh tanh asinh acosh atanh log log10 exp, exp2 expm1 abs ceil floor pow ## Key features - Evaluates complex algebraic expressions - Supports variables and constants - Customized keyboard for easy input - Instant result display - Unlimited variable and constant management - Step-by-step solving option - High precision calculations ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/icalcline/id432947683/reviews.md ### 1/5 — No save feature *2013-01-25* The app works exactly as advertised. I can do some fairly complex formulas. But, you can't save anything. The minute you close the app all your hard work is lost!! There needs to be a save function. And, like Excel, multiple sheets to save and work on multiple formulas/projects. ## Frequently asked questions about iCalcline ### What is iCalcline? iCalcline is a modern algebra calculator for iOS that can solve math expressions with any level of parenthesis and functions. It allows users to use algebraic expressions with numeric values and/or variable constant names. ### Can I create and use my own variables in iCalcline? Yes, you can create, manipulate, delete, and use as many variables as you like inside the app. You can also use variables and constants you created in the internal tables within your expressions. ### How does iCalcline handle complex expressions? iCalcline evaluates mathematical expressions with parentheses, nested functions, variables, and constants. It manages any nested level of parentheses using the correct precedence and checks expression syntax in advance. ### What is the calculation precision of iCalcline? iCalcline uses long double calculation for high precision, offering up to 9 decimal digit precision. You can also change the calculation precision on the fly. ### Does iCalcline support step-by-step solving? Yes, iCalcline offers an optional step-by-step solving feature that shows all the mathematical passages in the log. ### What devices does iCalcline support? iCalcline is available for iPhone, iPad, and iPod touch devices. ### How much does iCalcline cost? iCalcline is a paid app, priced at $0.99. ### Does iCalcline have ads? No, iCalcline does not contain advertisements. ## Version history (last 5 releases) ### 2.0 — 2025-07-08 Totally rewritten Totally new modern interface with a new modern layout Improved custom keyboard with all more used math symbol handy Available function list in keyboard Available variable list in keyboard Available constant list in keyboard Better management of variables and constant New calc log management Variable font sizes Works great also on iPad ### 1.2.3 — 2021-04-14 • Optimized for iOS 14 ### 1.2.2 — 2019-02-13 • Bug fix • Optimized for iOS 12 ### 1.2.1 — 2017-10-09 • Optimized for iOS 11 • Improved calc • Bug Fix ### 1.2 — 2014-09-10 - Improved interface - Improved math engine - Bug fix ## Apps similar to iCalcline | App | Rating | Price | Category | | --- | --- | --- | --- | | [The No List](https://appshunter.io/ios/app/the-no-list/id6751258334) | 5.0 (7) | Free | Productivity | | [Deckset: Your Notes to Slides](https://appshunter.io/ios/app/deckset-your-notes-to-slides/id6476942011) | 4.1 (11) | Free | Productivity | | [SwiftoDo for todo.txt](https://appshunter.io/ios/app/swiftodo-for-todotxt/id1073798440) | 4.7 (278) | Free | Productivity | | [MathDown - Markdown LaTeX Docs](https://appshunter.io/ios/app/mathdown-markdown-latex-docs/id6757225154) | — | $9.99 | Productivity | | [iA Presenter](https://appshunter.io/ios/app/ia-presenter/id6450214174) | 4.9 (8) | $19.99 | Productivity | | [Calcsmos: Calculator](https://appshunter.io/ios/app/calcsmos-calculator/id1590091618) | 4.8 (94) | Free | Productivity | ## More apps by Roberto Panetta - [Date T Calc](https://appshunter.io/ios/app/date-t-calc/id426018218) - [My Public IP](https://appshunter.io/ios/app/my-public-ip/id428836994) - [Power Cost](https://appshunter.io/ios/app/power-cost/id430317572) - [Queue Predictor](https://appshunter.io/ios/app/queue-predictor/id949282317) - [Counter 1](https://appshunter.io/ios/app/counter-1/id1125810080) All apps by Roberto Panetta: https://appshunter.io/developer/1438480110 --- *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 2026-08-21.*