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Best Micro Calculator Apps

250+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated September 2026

Looking for free micro calculator apps? 20 of our 250+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Micro Calculator Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1MacroFactor - Macro TrackerMacroFactor - Macro TrackerFree4.8★ (23K)NoYesSep 2026
2MacrosFirst - Macro TrackerMacrosFirst - Macro TrackerFree4.9★ (22K)YesYesSep 2026
3Cronometer: Calorie CounterCronometer: Calorie CounterFree4.8★ (98K)YesYesSep 2026
4Macro Calculator By FitturMacro Calculator By FitturFree4.7★ (4.1K)NoNoSep 2026
5Micro CalculatorMicro CalculatorFree5.0★ (1)NoNoMay 2026
6Macros - Calorie CounterMacros - Calorie CounterFree4.7★ (977)YesYesSep 2026
7‎Calorie Counter: Food Tracker‎Calorie Counter: Food TrackerFree4.4★ (3.7K)NoYesSep 2026
8Calculator‰Calculator‰Free4.9★ (409K)YesNoSep 2026

Top Picks for Micro Calculator

MacroFactor - Macro Tracker#1

MacroFactor - Macro Tracker by Stronger By Science Technologies LLC

Calorie Counter & Food Log
Editor's Choice
💪 Health & Fitness
4.8😊(23K ratings)
FreeIn-App Purchases
#12in Health & Fitness
MacroFactor - Macro Tracker screenshot 1
MacroFactor - Macro Tracker screenshot 2
MacroFactor - Macro Tracker screenshot 3
MacroFactor - Macro Tracker screenshot 4
MacroFactor - Macro Tracker screenshot 5
MacroFactor - Macro Tracker screenshot 6

This app uses a dynamic algorithm to adapt your calorie and macro targets based on your metabolism and progress. It offers tools for quick food logging, a verified database, and personalized coaching to help you achieve sustainable diet goals without stress or rigidity.

What We Love

  • 🚀 Easy to use
  • 🔍 Detailed analytics and data
  • 🤖 Intelligent algorithm adjustments
  • 👍 Flexible and customizable
  • 💯 Comprehensive food database
  • 🧠 Science-backed approach
  • 🔢 Accurate macro tracking
  • 📈 Helpful weight trend visualization
  • 🙌 Adherence-neutral design
  • ⏱️ Efficient food logging

Room to Improve

  • 🔍 Limited food database for some regions
  • 🤔 Steep learning curve for some users
  • 💰 Subscription-based model
  • 🤖 Occasional inaccuracies in AI-generated entries
  • 🔀 Convoluted navigation in some areas
MacrosFirst - Macro Tracker#2

MacrosFirst - Macro Tracker by MacrosFirst, Inc.

Calorie Counter, Nutrition Log
Strong Contender
💪 Health & Fitness
4.9😊(22K ratings)
FreeAdsIn-App Purchases
MacrosFirst - Macro Tracker screenshot 1
MacrosFirst - Macro Tracker screenshot 2
MacrosFirst - Macro Tracker screenshot 3
MacrosFirst - Macro Tracker screenshot 4
MacrosFirst - Macro Tracker screenshot 5
MacrosFirst - Macro Tracker screenshot 6

This app helps users track their food intake, calories, and macronutrients to achieve health and fitness goals. It offers features like custom goal setting, automatic serving size calculation, and quick food logging via barcode scanning or label analysis. Users can also monitor progress, share meals, and even convert alcohol calories into macro equivalents.

What We Love

  • 👍 Easy to use
  • 🚀 Intuitive interface
  • 💯 Accurate macro tracking
  • 🔍 Extensive food database
  • 🔓 Free features without paywall
  • 🤖 Helpful AI/barcode scanning
  • 🗓️ Ability to plan meals in advance
  • 🤝 Good customer support

Room to Improve

  • 🐛 Occasional bugs and glitches
  • 📚 Limited food database for some users
  • 🔢 Difficulty adjusting serving sizes
  • 🔍 Inaccurate nutrition info for some items
  • 🔧 Lacking certain customization options
Cronometer: Calorie Counter#3

Cronometer: Calorie Counter by Cronometer Software Inc

Nutrition, macro, diet tracker
Worth Considering
💪 Health & Fitness
4.8😊(98K ratings)
FreeAdsIn-App Purchases
#18in Health & Fitness
Cronometer: Calorie Counter screenshot 1
Cronometer: Calorie Counter screenshot 2
Cronometer: Calorie Counter screenshot 3
Cronometer: Calorie Counter screenshot 4
Cronometer: Calorie Counter screenshot 5
Cronometer: Calorie Counter screenshot 6

Track your diet and exercise with an extensive food database and detailed nutrient breakdowns. Monitor progress towards health goals, integrate with fitness devices, and gain insights into sleep patterns. Offers premium features for enhanced tracking and an ad-free experience.

What We Love

  • 👍 Excellent functionality
  • 👍 Best tracker out there
  • 👍 Logging food is super simple
  • 👍 Easy to set up and use
  • 👍 Comprehensive micronutrient tracking
  • 👍 Customizable targets and tracking
  • 👍 Barcode scanning is great
  • 👍 Syncs well with other apps/devices
  • 👍 Helpful for weight loss and nutrition goals
  • 👍 Detailed nutrient breakdown and analysis

Room to Improve

  • 🔒 Doesn't allow hiding email
  • 🐛 Widgets don't update properly
  • 🐛 Recipes don't always import correctly
  • 🐛 Slow performance and glitches
  • 🐛 Inaccurate calorie and nutrient data for some items
  • 🐛 Difficult to delete the app

More Micro Calculator apps to explore

FAQ about Micro Calculator

What are the best micro calculator apps for iPhone?
MacroFactor - Macro Tracker tops our micro calculator apps ranking as of September 2026, with a 4.8-star average from 23K App Store ratings, and it's free to download.
Yes — 20 of the top micro calculator apps we rank are free to download, including MacroFactor - Macro Tracker and MacrosFirst - Macro Tracker.
MacroFactor - Macro Tracker has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 250+ micro calculator apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
MacroFactor is a macro and calorie tracking app that uses a dynamic algorithm to personalize your nutrition targets. It adapts to your metabolism and progress, providing weekly coaching adjustments to help you achieve sustainable diet goals without stress.
Key features include a science-backed macro plan, a dynamic nutrition coach algorithm that adapts to your metabolism, a fast macro tracker with barcode scanning and custom foods, a verified food database for accuracy, and detailed breakdowns of macros and micronutrients.