Limited
Only has a limited number of currencies.
App is okay
More currency options needed.
No UK unit
No UK volume unit used here in Canada or others….
Response from developer
Thank you for the feedback, UK volume units have now been added.

This utility app offers a comprehensive solution for unit and currency conversions, featuring live currency updates and a built-in calculator. It supports a wide range of units across multiple categories and is available on various Apple platforms.
1.5
July 17, 2026
Updates to Volume conversions
IO Converter & Calculator is a multiplatform utility app designed for unit and currency conversions. It offers live currency updates and includes calculator functionality for iPhone and iPad users. The app is available on iPhone, iPad, Apple Watch, and Mac.
IO Converter & Calculator supports over 120 different units across 13 essential categories. This wide range allows for diverse conversion needs to be met within a single application.
No, IO Converter & Calculator is ad-free. Users can enjoy a seamless conversion experience without any advertisements interrupting their workflow.
IO Converter & Calculator is available on iPhone, iPad, Apple Watch, and Mac. This broad compatibility ensures users can access its features across their Apple ecosystem.
The latest version of IO Converter & Calculator is 1.4, last updated on August 22, 2024. Updates typically address bug fixes and feature enhancements to improve user experience.
IO Converter & Calculator is a paid application, priced at $0.99. This one-time purchase grants access to all its conversion and calculation features.
IO Converter & Calculator has an age rating of 4+. This indicates it is suitable for users of all ages and does not contain any mature content.
Yes, IO Converter & Calculator provides live currency updates for accurate exchange rate conversions. This feature is essential for travelers and those dealing with international finances.