# Calculator^: Scientific — One-Hand Mode & Math History > Modern calculator with visual history, unit conversion, and pre-tax tip calculation. (iPhone/iPad app by Wenbin lei.) - Source: https://appshunter.io/ios/app/calculator-scientific/id6739860116 (this page in markdown: same URL + `.md`) - Developer: [Wenbin lei](https://appshunter.io/developer/1787331500) - Category: Utilities, Education - Price: Free with in-app purchases - Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 16.5 · 8 MB - Languages: American English, Arabic, Dutch, French (France), German (Germany), Hindi, Indonesian, Italian, Japanese, Korean and 11 more - Released: 2025-12-08 - Data updated: 2026-08-25 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/calculator-scientific/id6739860116/reviews.md ## What is Calculator^? Calculator^ is a fast, focused calculator built for the way you actually use your phone. CALCULATE COMFORTABLY WITH ONE HAND Choose a left- or right-hand keyboard, then adjust its size and position to fit your grip. FIX INPUT WITH A SWIPE Swipe across the display to delete digits or functions without reaching for a tiny backspace key. SAVE RESULTS. REUSE THEM IN ONE TAP. Pin useful answers in a visual result shelf, then bring them back into any calculation whenever you need them. MAKE ANY RESULT BIG Long-press an answer for a clean full-screen display. Tap once when you want to customize its text, color, font, or size. MORE TOOLS, LESS CLUTTER • Standard and scientific keyboards • On-device calculation history • Five carefully designed themes • Interface available in 21 languages • Optional digit grouping • iPhone and iPad layouts • No account required Your expressions, saved results, and calculation history stay on your device. Remove Ads is an optional one-time purchase—not a subscription—and can be restored on devices using the same Apple Account. ## Key features - Visual history calculator (RESULT SHELF™) - Unit converter - Tip calculator (pre-tax) - Distraction-free design - Precise and efficient ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Remove Ads | $7.99 | one-time | ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/calculator-scientific/id6739860116/reviews.md ### 5/5 — The best calculator *2025-12-16* Fantastic calculator with a beautiful UI and smart features. I really like how it shows the previous result (“Before”) and the current result clearly—makes longer calculations much easier. The quick formatting (million/thousand) and the simplified number view are super convenient. Smooth performance and very well designed. ## Frequently asked questions about Calculator^ ### What makes Falculator's calculator different? Falculator replaces traditional memory buttons with a visual history area called RESULT SHELF™, making it easier to track and recall previous calculations without memorization. ### How does the tip calculator in Falculator work? The tip calculator in Falculator allows you to base tips on the pre-tax amount of your bill, ensuring you only tip on the cost of your food and drinks, not the taxes. ### Does Falculator have ads? Yes, Falculator contains advertisements. It is a free app with optional in-app purchases. ### What devices is Falculator available on? Falculator is currently supported on iPhone devices. ### How often is Falculator updated? The latest version, 1.4, was released on January 4, 2026, indicating recent development activity. Updates are important for adding new features and ensuring stability. ### What is the age rating for Falculator? Falculator has an age rating of 4+, making it suitable for a wide range of users. ### Can I convert units with Falculator? Yes, Falculator includes a unit converter, described as the best available, to help you convert between various units of measurement. ### What do users like about Falculator? Based on its 5.0-star rating from 2 reviews, users likely appreciate its intuitive design, the innovative RESULT SHELF™ feature, and its precise calculations. ## Version history (last 5 releases) ### 1.6 — 2026-08-23 • Long-press any result for a clean, full-screen Big Display; tap to customize its text, color, font, and size • Expanded the interface to 21 languages • Added an obvious X so the quick tour can be dismissed immediately • Improved saved-result cards and long-expression trailing-edge visibility • Refined one-hand controls, date display, and swipe-delete feedback Your calculation history, saved results, settings, and purchases remain on device through the update. ### 1.5 — 2026-08-11 Calculator^ is now a focused standalone calculator: • Adjustable left- and right-hand keyboards • Swipe across the display to delete input • Save useful results and reuse them with one tap • Refreshed iPhone and iPad layouts • Standard and scientific modes • Reliable on-device history • Five themes • Restored one-time Remove Ads purchase Existing supported calculation history and purchases are preserved during the update. ### 1.4 — 2026-01-04 Add 4 themes - All specially designed. ### 1.3 — 2025-12-31 • Unit Converter: Now remembers your last used conversion for each category • Tip Calculator: Clearer "Bill (Pre-Tax)" labels • Improved error messages - more friendly, less technical • Performance improvements and bug fixes ### 1.1 — 2025-12-10 • Improved stability and performance • Fixed localization issues ## Apps similar to Calculator^ | App | Rating | Price | Category | | --- | --- | --- | --- | | [Plusly Calculator](https://appshunter.io/ios/app/plusly-calculator/id1576071621) | 5.0 (1) | Free | Utilities | | [Calvance Calculator](https://appshunter.io/ios/app/calvance-calculator/id6739774242) | 4.0 (6) | Free | Utilities | | [Girl Math Calculator](https://appshunter.io/ios/app/girl-math-calculator/id6740057936) | 1.0 (1) | Free | Utilities | | [NeoCalcs Lite - Calculator](https://appshunter.io/ios/app/neocalcs-lite-calculator/id855293368) | — | Free | Utilities | | [KuCalc](https://appshunter.io/ios/app/kucalc/id6445941447) | — | Free | Utilities | | [Halcyon Calc Lite](https://appshunter.io/ios/app/halcyon-calc-lite/id408004888) | 4.7 (15) | Free | Utilities | --- *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 2026-08-25.*