This app offers a comprehensive suite of over 40 calculators and unit converters for various needs, including finance, health, construction, and everyday math. It features standard, scientific, and specialized calculators for tasks like loan amortization, currency conversion, and material estimation.
Summarized from real user reviews of OneCalc. Based on 4.8K reviews and a 4.6/5 average, it highlights the 9 positives and 6 negatives reviewers mention most about this Productivity app.
1.6
December 26, 2025
Bug fixes and minor improvements
3 issues
Crashes when using the 'More' section
Incorrect date duration calculations
7 requests
Add more than 2 slots for conversions
Include a 'log' feature
This app provides a free, ad-supported collection of over 40 specialized calculators and unit converters. It covers a wide range of categories including finance, health, date and time, construction, shopping, and everyday math, making it a versatile tool for various calculation needs.
Key features include a standard calculator with advanced scientific functions, a unit converter for metric/imperial units, financial calculators for loans and savings, health trackers like BMI and calorie calculators, construction material estimators, and date/time duration calculators.
Yes, the app is free to download and use. However, it does contain advertisements. There are no in-app purchases mentioned in the provided description.
The app is designed for iPhone and iPad devices. It offers a comprehensive set of tools suitable for a variety of calculation tasks on these Apple mobile platforms.
Common use cases include calculating loan payments and interest, converting currencies, tracking health metrics like BMI, estimating materials for DIY projects, calculating profit margins, and finding the duration between dates or times.
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