Comparison

Calcium vs Microgram

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Calcium

Effortlessly track your daily calcium intake with this simple and elegant app. It integrates seamlessly with Apple Health, offers automatic iCloud backups, and provides smart reminders. No login or ads are required, making it a completely free and private health companion.

Highlights
  • Seamless calcium intake tracking
  • Full Apple Health integration
  • Automatic iCloud backups
  • Smart reminders
  • Custom daily intake schedule
  • No ads or login required
Features
Read full description

Simple and elegant calcium tracker for your watch. Apple Health integration. iCloud backups. Schedule & reminders. No login. No ads. Free. ■ FEATURES • Seamless calcium intake tracking • Full Apple Health integration • Automatic, secure iCloud backups • Trusted data from the U.S. National Institutes of Health • Science-based personalization by age and gender • Sync across all your Apple devices • Effortless history review • Smart reminders to stay on track • Custom daily intake schedule • No ads, no login, no in-app purchases • 100% free ■ SAFE AND SECURE Privacy is not something you are merely entitled to, it is an absolute prerequisite. At Martspec, we believe privacy is a fundamental human right. So we built it into our products from the beginning of the design process. We do not share your data with any 3rd party. We do not use it for advertisement purposes and do not use it for profit. Your data is stored only on your Apple service (Apple Health store and iCloud). We do NOT store your data on our servers. ■ DISCLAIMER The nutritional information provided in this app is sourced from the U.S. National Institute of Health and the book “Nutrition for Health and Health Care,” 3rd Edition, by E. Whitney. This content is designed strictly for educational purposes and should NOT replace professional medical advice, diagnosis, or treatment. Your use of this application is entirely at your own discretion and risk. The app is made available to you “as is” and “as available,” without any representations or warranties of any kind. While we strive for excellence in our software development, Martspec cannot guarantee that the app will be free from errors or defects. Martspec expressly disclaims all warranties, whether express or implied, including, but not limited to, implied warranties of merchantability, fitness for a particular purpose, and non-infringement. We do not warrant that the app, or any content provided through it, will always be available, uninterrupted, timely, secure, current, accurate, complete, or error-free. You acknowledge that your exclusive remedy for any dissatisfaction or issues with the app is to discontinue its use. Martspec shall not be liable for any direct, indirect, incidental, special, consequential, or exemplary damages, including but not limited to, damages for loss of profits, goodwill, use, data, or other intangible losses resulting from the use or inability to use the app. ■ BUILD TOGETHER At the heart of everything we do is one simple goal: to help you feel and live better every day. Our mission is to expand human potential by merging cutting-edge technology, beautifully crafted design, and the insights you share directly with us. We ground our work in science—leveraging trusted research and real-world data—while it’s your feedback that guides our journey forward. This isn’t just an app; it’s a shared experience. We’re a passionate team of creators, and you’re the co-pilot. Every idea, suggestion, and request helps us build smarter features, refine your experience, and eliminate what doesn’t serve you. Together, we’re crafting a tool that evolves with you to make daily life smoother and more vibrant.

About

Microgram

This app helps you track over 50 nutrients, including macros, vitamins, and minerals, to achieve your health and fitness goals. Log meals easily through various methods like photos or voice commands. It offers personalized plans for weight management, muscle building, or overall well-being.

Highlights
  • Track 50+ nutrients
  • Log meals via photo, voice, text, barcode
  • Personalized fitness goals
  • Focus on longevity and overall health
  • Track macros, fiber, sugar, vitamins, minerals
  • Support for pregnancy and lactation
Features
Read full description

Meet Microgram - the next generation nutrient tracker. Track calories and over 50+ nutrients, including macros, fiber, vitamins, minerals, amino acids, omega-3/6, and more. Powered by reliable USDA-sourced data, Microgram makes it easy to log meals by snapping a photo, using voice commands, texting, barcode scanning, or searching manually. REACH YOUR UNIQUE GOALS Whether you want to lose weight, build muscle, gain weight, or maintain your current physique, Microgram personalizes your daily targets to help you get there efficiently. No fitness goal in mind? Microgram also helps you focus on longevity and overall health, supporting sleep, digestion, skin and hair, energy levels, inflammation, brain function, and more by ensuring you meet your essential nutrient needs. WHY TRACK MORE THAN JUST CALORIES? TRACK MACROS: Manage proteins, carbohydrates, and fats to reach weight goals, maintain energy levels, and build muscle. TRACK FIBER: Boost your digestive health and support balanced blood sugar levels and weight management by monitoring your daily fiber intake. TRACK SUGAR: Monitor your sugar intake to maintain steady energy, manage cravings, and support healthy weight management. TRACK VITAMINS & MINERALS: Invest in long-term health and achieve peak performance by preventing deficiencies and supporting vital functions like immune health, bone strength, and energy production. TRACK AMINO ACIDS: Promote muscle repair and growth by tracking essential amino acids in your diet. TRACK OMEGA-3 & 6: Reduce inflammation, maintain heart and brain health by balancing essential fatty acids. HOW IT WORKS 1. Enter your details for a personalized plan 2. Log your meals via photo, voice, text, barcode, or manual search* 3. Track over 50 nutrients to achieve fitness goals and optimize long-term health* PREGNANCY & LACTATION-FRIENDLY Microgram also supports pregnant and breastfeeding women with tailored nutrient targets designed for both mom and baby, including folate, choline, iron, calcium, omega-3, vitamin D, and other key nutrients critical for development and recovery. If you have any questions or feature requests, please email us at team@microgramapp.com. *A subscription is required for certain features. NOTE: We do not provide medical advice. Always consult a professional before making changes to your nutrition. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Microgram4 screens

Verdict

The call

The clearest difference is rating: Microgram at 4.7 against Calcium's 3.7. Microgram also leads on update cadence (every 2 weeks vs every 3 months) and ratings volume (1.1K vs 3). Calcium's advantage is review sentiment (100% vs 65%) and in-app purchases (none vs 11). On price and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Microgram sells 10 in-app purchases, starting at $9.99 per month. Calcium asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Microgram holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: Microgram has 1.1K ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 100% of Calcium's written reviews are positive against 65% of Microgram's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Calcium ships an update every 3 months, Microgram every 2 weeks. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

Scorecard8 real differences · 2 level
Calcium versus Microgram: the parameters behind the verdict, then further details
ParameterCalciumMicrogram
PriceFreeFree
Rating3.7 (3 ratings)4.7 (1.1K ratings) — better
Positive reviews100.0% of reviews — better64.9% of reviews
Number of ratings31.1K — better
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPod, Apple Watch — betteriPhone
Requires iOS13.0 — better17.0
Further details — not scored
Size7 MB207 MB
Age rating12+17+
DeveloperMartspec LLCLurra, LLC

Customer experience

Calcium

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Microgram

All ratings1,102 ratings
Positive94.0%
Neutral3.5%
Negative2.5%
Written reviews37 reviews
Positive64.9%
Neutral10.8%
Negative24.3%

Bugs and requests

Calcium

Not enough reviews yet to summarise bugs or requests.

Microgram

Reported bugs

2 issues
  • Inconsistent calorie and nutrient tracking
  • Compatibility issues with older devices

Requested features

3 requests
  • Dark mode option
  • More user-friendly food logging
  • Better integration with other health apps

In-app purchases

None

Calcium

No in-app purchases

10 purchases

Microgram

Subscriptions10
  • Microgram Monthly Access$9.991 Month
  • Microgram Monthly Access$19.991 Month
  • Microgram Yearly Access$23.901 Year
Show 7 more
  • Microgram Yearly Access2 variants$35.901 Year
  • Microgram Yearly Access$44.991 Year
  • Microgram Yearly Access3 Days trial$47.901 Year
  • Microgram Yearly Access3 Days trial$59.991 Year
  • Microgram Yearly Access$59.991 Year
  • Microgram Yearly Access$71.901 Year
  • Microgram Yearly Access3 Days trial$71.901 Year

Questions

Is Calcium free?
Calcium is free to download, with no in-app purchases.
Is Microgram free?
Microgram is free to download, with in-app purchases available.
Which has better reviews, Calcium or Microgram?
Microgram is rated higher. Calcium averages 3.7 out of 5 from 3 ratings, while Microgram averages 4.7 from 1.1K ratings.
Do Calcium or Microgram have ads?
Neither Calcium nor Microgram shows ads.
Which is updated more often, Calcium or Microgram?
Calcium ships an update every 3 months, and Microgram every 2 weeks. Most recently, Calcium was updated on October 24, 2026 and Microgram on October 30, 2026.

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