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Tap the star on any currency to add it hereCustomize app language, theme and feedback.
Learn how to use EQ7 and discover its features.
EQ7 is a smart, all-in-one calculator that combines everyday math, scientific and percentage tools, currency conversion and much more in one simple, easy-to-use app.
The idea is simple: one calculator instead of many, built for speed, clarity and everyday use.
The main calculator for everyday operations: add, subtract, multiply and divide.
Example: 12 + 7 = 19.
Tap "Scientific" to use the square root, square and parentheses buttons inside the same calculator.
Example: √9 = 3, 2^3 = 8.
Quickly work out a percentage of an amount without extra steps.
Example: 15% of 200 = 30.
EQ7 remembers what you calculated in the last 24 hours so you can review or share it.
Save quick notes, organize them in folders, and edit them in a full-screen editor.
Search currencies, see live rates, convert between currencies, use a custom rate, and keep your favorites.
Change the language, the theme and the sound feedback exactly how you like.
Language: switches the whole app between the available languages.
Theme: choose Dark, Light or Violet appearance.
App Sounds: the master switch for sound and haptic feedback.
When App Sounds is ON, button sound and haptics are allowed. Turn it OFF to silence that feedback, and ON again to allow it.
Speech/TTS is separate from App Sounds and is not turned off by App Sounds.
Pick the currency you have (From) and the one you want (To), then type an amount.
Use the swap button to reverse the two currencies.
Use the star to mark a currency as a favorite, and open Favorite Currencies from the currency menu.
Convert at Custom Rate lets you enter your own exchange rate.
Live prices come from the online service; if it is unavailable, cached rates may be used.
You can install EQ7 as an app on supported devices.
Some features work offline using stored resources, but live currency rates and app updates need an internet connection.
EQ7 is fully translated. Choose your language in the top bar or in Settings, and the whole app — including this help page — updates instantly.
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