# Myriad Calculator — Calculator + Worksheets > Advanced calculator with worksheets, history, and customization for iPhone and iPad. (iPhone/iPad app by Chad Lechner.) - Source: https://appshunter.io/ios/app/myriad-calculator/id1333315853 (this page in markdown: same URL + `.md`) - Developer: [Chad Lechner](https://appshunter.io/developer/1333315852) - Category: Utilities, Productivity - Price: Free with in-app purchases - Rating: 5.00/5 from 4 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 10.3 · 34 MB - Languages: American English - Released: 2018-02-07 - Data updated: 2026-06-01 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/myriad-calculator/id1333315853/reviews.md ## What is Myriad Calculator? Myriad is a modern calculator for iPhone and iPad that offers 34 predesigned worksheets. Need to calculate the tip at a restaurant? There's a worksheet for that. Converting milliliters to teaspoons? There's a worksheet for that too. Buying a new home? Yep, there's a worksheet that tells you the monthly payment on the loan. 33 worksheets are unlocked with in-app purchases, while the Restaurant Bill worksheet, general-purpose calculator, and all other features are completely free. In addition, Myriad has many useful features that other calculators leave out: • Myriad keeps a running math expression that shows everything you've entered. • A history list records each calculation you make so you can check for mistakes or copy past answers. You can easily delete, reuse, and reorder items. • Myriad includes sales tax buttons to add or subtract sales tax from a total. • A dedicated undo button lets you easily correct mistakes. • Tap "round" to round off numbers to a set decimal place. • Myriad includes keyboard shortcuts, perfect for iPad Pro. • Myriad automatically switches between light and dark themes and uses bolder, darker text when it’s bright out. • Choose between nine daytime colors and nine nighttime colors. • Myriad supports system-wide accessibility technologies, including Darken Colors and Smart Invert. • I even wrote a full user manual that you can read inside the app! Myriad is great for math and science problems too: • Enter extremely large or small numbers using exponential notation. • Calculate exponentials, logarithms, and factorials from the button pad in both portrait and landscape orientations. • Use the Trigonometry worksheet to convert angles and compute trig functions, the Quadratics worksheet to solve quadratic/parabolic equations, and the Exponentials worksheet to compute multiple exponentials and logarithms at once. Plus, it works on your wrist too: Use the Apple Watch app to make quick calculations from your wrist and impress your friends. It handles percentages and sales tax, and even includes a handy worksheet for figuring the tip and splitting payment when eating out. ## Key features - Running math expression display - Calculation history list - 34 predesigned worksheets - Sales tax buttons - Undo button - Light/dark theme switching - Apple Watch app ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Exponents/Logarithms Worksheet | $0.29 | one-time | | Gear Ratio Worksheets | $0.29 | one-time | | Length Units Worksheet | $0.29 | one-time | | Mass Units Worksheet | $0.29 | one-time | | Price Comparison Worksheet | $0.29 | one-time | | Temperature Units Worksheets | $0.29 | one-time | | Volume Units Worksheet | $0.29 | one-time | | Wage Estimation Worksheet | $0.29 | one-time | | Trigonometry Worksheet | $0.29 | one-time | | Mortgage Worksheet | $0.29 | one-time | | Quadratics/Parabolas Worksheet | $0.29 | one-time | ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/myriad-calculator/id1333315853/reviews.md ### 5/5 — Love it! *2021-10-07* I hate forgetting the answer or having to screenshot answers so this app is perfect! ## Frequently asked questions about Myriad Calculator ### What is Myriad Calculator? Myriad Calculator is a versatile calculator application for iPhone and iPad. It offers a general-purpose calculator, a running expression history, and 34 specialized worksheets for tasks like calculating tips, loan payments, and currency conversions. ### Does Myriad Calculator have ads? No, Myriad Calculator does not contain advertisements. The app is free to download and use, with optional in-app purchases for additional worksheets. ### How many worksheets are included with Myriad Calculator? Myriad Calculator comes with 34 predesigned worksheets. The Restaurant Bill worksheet, general-purpose calculator, and other core features are free, while 33 additional worksheets are available through in-app purchases. ### What devices does Myriad Calculator support? Myriad Calculator is designed for Apple devices, including iPhone, iPad, and Apple Watch. It also supports iPod touch. ### Can I see my previous calculations in Myriad Calculator? Yes, Myriad Calculator maintains a history list that records every calculation you make. You can easily review, delete, reuse, or reorder past calculations. ### How does Myriad Calculator handle sales tax? Myriad Calculator includes dedicated sales tax buttons that allow you to easily add or subtract sales tax from a total amount, simplifying retail calculations. ### Is Myriad Calculator suitable for complex math problems? Yes, Myriad Calculator supports exponential notation for very large or small numbers and includes buttons for calculating exponentials, logarithms, and factorials. Specialized worksheets for trigonometry and quadratics are also available. ### How often is Myriad Calculator updated? The latest version of Myriad Calculator is 1.3.2, which was released on April 19, 2018. The app was initially released on February 7, 2018. ## Version history (last 5 releases) ### 1.3.2 — 2018-04-19 This app has been updated by Apple to display the Apple Watch app icon. ~~~ Version 1.3.2 ~~~ Accessibility Improvements/Bug Fixes: The Last Calculation Widget now responds to Smart Invert Colors by not inverting the three buttons. When adding or subtracting sales tax when VoiceOver is on, the result is read out in English (“tax is [answer]”), and not in Yoda-speak ([answer] tax is). When the app is opened and VoiceOver is on, the number readout gets focus. ~~~ Version 1.3.1 ~~~ Bug Fixes: I fixed a bug where the tax cap amount on the tax settings screen would revert to black or light gray when the night theme is on and the tax cap is changed. I fixed a bug where using the undo button when a calculation includes added or subtracted tax would generate an incorrect answer. I fixed a bug where changing the screen brightness from 0% or 100% to a value in between after launching the app would not change from night/outdoor theming back to day/indoor theming. I fixed a bug—I think, the bug was difficult to reproduce—where buttons on the button pad sometimes wouldn’t change color when switching between day and night themes (and possibly indoor/outdoor themes). ~~~ Version 1.3 ~~~ Light Side, Dark Side: Myriad now has automatic indoor, outdoor, and night themes. Text gets darker and bolder in bright light, and the entire interface changes to a dark background at night. Customize the night theme with 9 dedicated colors. You can even use the night theme all the time if you like. Plus, you can now change the app icon to match the daytime color. Read All About It: I’ve improved the in-app user manual. It has a redesigned table of contents, a new section that discusses accessibility features, and now uses a custom page-size for excellent pagination and narrower margins for comfortable reading on small screens. Minor Changes: When attempting to scroll past the scientific buttons, the divider lines now stay in place on iPhone and stretch to the right on iPad. Bug Fixes: The math expression now scrolls properly, and furthermore will no longer scroll vertically or diagonally. When you perform square, cube, or factorial after wrapping the expression in parens/brackets, an extra set of parens/brackets are no longer added. The app no longer crashes when you press the undo button when entering a number in exponential notation that has a negative order of magnitude with one digit (E −1 to E −9). (Whew!) I fixed some bugs where parts of the math expression would be inserted at the wrong place. I fixed a bug where using the undo button could crash the app in certain cases (and in the process rewrote the offending section of code altogether). On the Trigonometry worksheet, the Secant and Cosecant cells were mislabeled (The actual Secant was labeled Cosecant and vice versa.) The caption above the large readout wasn’t responding to the Darken Colors accessibility setting. I fixed that. The app icon on iPad Pro (12.9″) wasn’t right. That’s fixed too. :) ### 1.3.1 — 2018-04-19 ~~~ Version 1.3.1 ~~~ Bug Fixes: I fixed a bug where the tax cap amount on the tax settings screen would revert to black or light gray when the night theme is on and the tax cap is changed. I fixed a bug where using the undo button when a calculation includes added or subtracted tax would generate an incorrect answer. I fixed a bug where changing the screen brightness from 0% or 100% to a value in between after launching the app would not change from night/outdoor theming back to day/indoor theming. I fixed a bug—I think, the bug was difficult to reproduce—where buttons on the button pad sometimes wouldn’t change color when switching between day and night themes (and possibly indoor/outdoor themes). ~~~ Version 1.3 ~~~ Light Side, Dark Side: Myriad now has automatic indoor, outdoor, and night themes. Text gets darker and bolder in bright light, and the entire interface changes to a dark background at night. Customize the night theme with 9 dedicated colors. You can even use the night theme all the time if you like. Plus, you can now change the app icon to match the daytime color. Read All About It: I’ve improved the in-app user manual. It has a redesigned table of contents, a new section that discusses accessibility features, and now uses a custom page-size for excellent pagination and narrower margins for comfortable reading on small screens. Minor Changes: When attempting to scroll past the scientific buttons, the divider lines now stay in place on iPhone and stretch to the right on iPad. Bug Fixes: The math expression now scrolls properly, and furthermore will no longer scroll vertically or diagonally. When you perform square, cube, or factorial after wrapping the expression in parens/brackets, an extra set of parens/brackets are no longer added. The app no longer crashes when you press the undo button when entering a number in exponential notation that has a negative order of magnitude with one digit (E −1 to E −9). (Whew!) I fixed some bugs where parts of the math expression would be inserted at the wrong place. I fixed a bug where using the undo button could crash the app in certain cases (and in the process rewrote the offending section of code altogether). On the Trigonometry worksheet, the Secant and Cosecant cells were mislabeled (The actual Secant was labeled Cosecant and vice versa.) The caption above the large readout wasn’t responding to the Darken Colors accessibility setting. I fixed that. The app icon on iPad Pro (12.9″) wasn’t right. That’s fixed too. :) ### 1.3 — 2018-04-17 Light Side, Dark Side: Myriad now has automatic indoor, outdoor, and night themes. Text gets darker and bolder in bright light, and the entire interface changes to a dark background at night. Customize the night theme with 9 dedicated colors. You can even use the night theme all the time if you like. Plus, you can now change the app icon to match the daytime color. Read All About It: I’ve improved the in-app user manual. It has a redesigned table of contents, a new section that discusses accessibility features, and now uses a custom page-size for excellent pagination and narrower margins for comfortable reading on small screens. Minor Changes: When attempting to scroll past the scientific buttons, the divider lines now stay in place on iPhone and stretch to the right on iPad. Bug Fixes: The math expression now scrolls properly, and furthermore will no longer scroll vertically or diagonally. When you perform square, cube, or factorial after wrapping the expression in parens/brackets, an extra set of parens/brackets are no longer added. The app no longer crashes when you press the undo button when entering a number in exponential notation that has a negative order of magnitude with one digit (E −1 to E −9). (Whew!) I fixed some bugs where parts of the math expression would be inserted at the wrong place. I fixed a bug where using the undo button could crash the app in certain cases (and in the process rewrote the offending section of code altogether). On the Trigonometry worksheet, the Secant and Cosecant cells were mislabeled (The actual Secant was labeled Cosecant and vice versa.) The caption above the large readout wasn’t responding to the Darken Colors accessibility setting. I fixed that. The app icon on iPad Pro (12.9″) wasn’t right. That’s fixed too. :) ### 1.2.1 — 2018-03-07 Bug Fixes: Fixed a bug on the Pressure Units worksheet :) ### 1.2 — 2018-03-05 New Features: I’ve added a burgundy theme to Myriad. Worksheets, the button pad, math expression, and history list now respond to Darken Colors in the system accessibility settings. Minor Changes: There’s now a link to the Facebook Page in the Help screen. The toolbar above the history list is now taller in landscape orientation on iPhone Plus models, consistent with other apps. Bug Fixes: I fixed a bug in the Digital Photo Sizing worksheet. Fine lines now render consistently on iPhone X and Plus models I also fixed some bugs for users upgrading from earlier versions. :) ## Apps similar to Myriad Calculator | App | Rating | Price | Category | | --- | --- | --- | --- | | [CalcApp - Simple Calculator](https://appshunter.io/ios/app/calcapp-simple-calculator/id1211638570) | 4.6 (19) | Free | Utilities | | [SUM Calculator](https://appshunter.io/ios/app/sum-calculator/id1543390836) | — | Free | Utilities | | [malc](https://appshunter.io/ios/app/malc/id721874689) | — | $1.99 | Utilities | | [Cuspart: Calculator+](https://appshunter.io/ios/app/cuspart-calculator-plus/id1572084996) | — | Free | Utilities | | [Instant Calculator](https://appshunter.io/ios/app/instant-calculator/id1632328821) | 5.0 (2) | Free | Utilities | | [UniCount scientific calculator](https://appshunter.io/ios/app/unicount-scientific-calculator/id1034143766) | 5.0 (8) | 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 2026-06-01.*