Description

This multi-function app is a scientific calculator packaged with currency converter and unit converter. It is powerful and user-friendly for school, work and for everyday use.
== Feature Highlights ==
• History Manager: review calculation/conversion history, reuse/share/insert/copy expression and result, and delete individual/all records. See below for details.
• iPad Landscape Mode: display functions and numeric keys side by side for higher efficiency, or display history records and numeric keys side by side. See below for details.
• Full editing options: Undo, Redo, Select, Select All, Cut, Copy, Paste, and Cancel
• Full expression display in multiple lines: review and easily check entry errors
• Caret support, easier to edit an entry
• Instant detection and identification of invalid entries
• Unique and playful button sound and haptic effects, both mutable (note: haptic effects are only available on iPhone 7 & plus and later iPhone models)
• Aesthetic in user interface, easy and simple to use

== Scientific Calculator ==
• +, −, ×, ÷, (), +/-, %, delete, clear-all
• (Inverse) trigonometric functions: sin, cos, tan, asin, acos, atan (radian & degree)
• (Inverse) hyperbolic functions: sinh, cosh, tanh, asinh, acosh, atanh
• Constants: e, π
• Scientific notation E: enter numbers in the format of scientific notation, such as, 1.8E6 or 2.21E-10
• Roots: square root, cubic root
• Power & exponential functions: x^2, x^3, x^y, 2^x, 3^x, 10^x, e^x
• Logarithmic functions: ln, log2, log10
• Absolute value: |x|

== Currency Converter ==
• +, −, ×, ÷, (), +/-, %, delete, clear-all
• Converts back-and-forth and does calculation as well
• Supports daily updates for 37 major world currencies (AED, AUD, BGN, BRL, CAD, CHF, CNY, CZK, DKK, EUR, GBP, HKD, HUF, IDR, ILS, INR, ISK, JPY, KRW, LKR, MXN, MYR, NOK, NZD, PEN, PHP, PLN, RON, RUB, SAR, SEK, SGD, THB, TRY, TWD, USD, ZAR)
• Supports offline conversion. When there is no internet connection, last downloaded rates are available for conversion.
• Daily updates from three trusted sources: the U.S. Federal Reserve, European Central Bank, Bank of Canada

== Unit Converter ==
• +, −, ×, ÷, (), +/-, %, delete, clear-all
• Converts back-and-forth and does calculation as well
• Supports 13 common categories: Area, Data, Energy, Force, Frequency, Length, Pressure, Speed, Temperature, Time, Volume, Weight, Others
• 181 units of measurement, 3,207 conversions
• Supports both British Imperial and U.S. Customary
• Supports unit measurements in both Mainland China & Taiwan

== In-app Purchases ==
We offer the following two in-app purchases to access additional features. Your purchase and generous support can greatly help us to continue developing this app. Thank you!

>> History Manager - USD$0.99, limited free trial:
• One time purchase is for both iPhone & iPad
• Review calculation/conversion history
• Copy or share expression and result
• Reuse expression
• Insert expression or result at the caret (cursor) with detection of error/invalid input
• Delete individual or all records
• History records are listed in alternate colors for easy browsing, each is marked with its date of creation. Long expressions are compressed or expanded automatically.
• Calculator, Currency and Unit converters all support History

>> iPad Landscape Mode - USD$0.99, limited free trial:
• When using Calculator, iPad Landscape displays functions and numeric keys side by side, for higher efficiency. Calculation history and numeric keys may also be displayed side by side, allowing you to watch recordkeeping of calculation simultaneously.
• When using Currency & Unit converters, iPad Landscape displays conversion history and numeric keys side by side, allowing you to watch recordkeeping of conversion simultaneously.

== Support ==
• Website: https://www.theequally.com
• Contact us: [email protected]

== Credits ==
UX designer: Cheryl S. Yee
UI designer: Cheryl S. Yee

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In-Apps

Unlock History: £0.99
Unlock iPad Landscape: £0.99

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4.5 out of 5

2 ratings in United Kingdom

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