Out of 0+ health calculators apps on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
This app helps you manage your health by calculating key metrics like BMI, daily calorie needs, and target heart rate zones. It also assists with pregnancy planning and hydration goals based on your personal data.
Easily log your meals and track your progress towards custom nutrition goals. This app offers fast food logging, detailed insights into your eating habits, and seamless integration with Apple Health. Monitor calories, macros, and more to achieve your health and fitness objectives.
What We Love
🚀 Easy to use
🔒 Privacy-focused
👍 Intuitive interface
👍 Seamless Apple ecosystem integration
Room to Improve
🐛 Limited food database, especially for non-US items
This clinical calculator and decision support tool offers over 200 medical calculators and tools for diagnosis, treatment, and prognosis. It adapts to your practice and provides detailed references, integrating with PubMed and Read by QxMD.
What are the best health calculators apps for iPhone?
Health calculator: weight, BMI tops our health calculators apps ranking as of July 2026, with a 4.6-star average from 47 App Store ratings, and it's free to download.
Are there free health calculators apps for iPhone?
Yes — 19 of the top health calculators apps we rank are free to download, including Health calculator: weight, BMI and Nutrition Tracker: Foodnoms.
Does Health calculator: weight, BMI have ads or in-app purchases?
Health calculator: weight, BMI shows ads and has no in-app purchases, according to its App Store listing as of July 2026.
What health metrics can Health calculator measure?
Health calculator can measure your BMI, daily calorie requirements for weight gain or loss, target heart rate training zones, blood volume, daily water intake, ideal weight, pregnancy due date, ovulation period, and blood donation eligibility.
How does Health calculator personalize calculations?
The app uses your personal data, including height, weight, age, and gender, to provide accurate and personalized health calculations.