# Calculator Plus Basic & PEMDAS — With History & Tax Calculation > Customizable calculator with PEMDAS mode, themes, and calculation history. (iPhone/iPad app by Paul Flowers.) - Source: https://appshunter.io/ios/app/calculator-plus-basic-and-pemdas/id6758761367 (this page in markdown: same URL + `.md`) - Developer: [Paul Flowers](https://appshunter.io/developer/1874852072) - Category: Utilities, Education - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 89 MB - Languages: American English - Released: 2026-04-21 - Data updated: 2026-08-20 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/calculator-plus-basic-and-pemdas/id6758761367/reviews.md ## What is Calculator Plus Basic & PEMDAS? Combining powerful calculations with fully customisable design — so your calculator looks and works just how you want it to! Built For Speed & Simplicity: Clean, simple, intuitive layout Instant, responsive calculations Large easy to read buttons and numbers Switch between standard and order of operations (PEMDAS) modes effortlessly Make It Yours: Over 50 color themes available, with more added regularly High-contrast colour themes for visually impaired users Favorite your top themes for quick switching Request your very own color theme Choose round or square buttons Smart Features That Matter: Full calculation history with US format date & timestamps - store up to a year of results Adjustable decimal precision Copy & paste from the display or calculation history Retro LCD or modern display Customisable haptic feedback intensity Sound effects on or off Optimized layouts for both iPhone and iPad Sales Tax calculations Currency conversions Unlock Premium Your Way: Watch a short ad to unlock any premium theme for 7 days Or upgrade to Premium with a one-time purchase and: Unlock all themes forever on your iPhone and iPad No subscription Reasons to Love it: No clutter, no confusion — just an intuitive, great looking calculator Personalisation without limits Try all premium themes before you buy ## Key features - PEMDAS order of operations mode - Over 50 customizable color themes - Full calculation history - Adjustable decimal precision - Copy and paste functionality - Sales tax calculations ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | More Beans Calculator | $4.99 | one-time | ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/calculator-plus-basic-and-pemdas/id6758761367/reviews.md ### 5/5 — Love the options *2026-06-18* I really like the multiple color options, the maths options and the versatility of sizing. ## Frequently asked questions about Calculator Plus Basic & PEMDAS ### Does Calculator Plus have ads? Yes, Calculator Plus contains advertisements. You can watch a short ad to unlock premium themes for 7 days. ### How much does Calculator Plus cost? Calculator Plus is free to download and use. You can unlock all premium themes forever with a one-time purchase. ### What is PEMDAS mode in Calculator Plus? PEMDAS mode in Calculator Plus allows you to perform calculations following the order of operations (Parentheses, Exponents, Multiplication, Division, Addition, Subtraction), ensuring accurate results for complex equations. ### Can I customize the look of Calculator Plus? Yes, Calculator Plus offers over 50 color themes, high-contrast options for visually impaired users, and choices for round or square buttons, allowing for extensive personalization. ### How long is the calculation history stored in Calculator Plus? Calculator Plus stores up to a year of calculation history, complete with US format date and timestamps, making it easy to review past computations. ### What devices is Calculator Plus available on? Calculator Plus is optimized for both iPhone and iPad, offering tailored layouts for each device. ### How often is Calculator Plus updated? The latest version, 1.1.8, was released on July 6, 2026, indicating active development and regular updates for new features and improvements. ### What is the age rating for Calculator Plus? Calculator Plus has an age rating of 4+, making it suitable for a wide range of users. ## Version history (last 5 releases) ### 1.1.9 — 2026-08-17 Currency converter. Tip calculator. 6 new color themes. 14 day free trail of Premium. Long press to delete a custom tax rate. Tax formatting bug fix. Onboarding screens. Layout bug fix for iPhone SE. ### 1.1.8 — 2026-07-06 Bug fix where custom tax amount didn't persist. Ability to add a note to an entry in the history screen. 2 New color themes. ### 1.1.7 — 2026-06-24 UI tweaks ### 1.1.6 — 2026-06-15 Layout tweaks. New sound effects. ### 1.1.5 — 2026-06-14 Sales Tax calculations Layout fix for iPad --- *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 2026-08-20.*