Comparison

Nutrient Logger vs Ruby Health

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

Head to head
About

Nutrient Logger

This app allows users to meticulously track their daily intake of both macronutrients and micronutrients. It provides detailed breakdowns of vitamins, minerals, carbs, and protein, helping users understand their body's nutritional status. The app also offers personalized targets and educational insights into the function of each nutrient.

Highlights
  • Detailed nutrient breakdown (macro & micro)
  • Extensive food database
  • Save reusable meals
  • Personalized nutrient targets
  • Learn about nutrient functions
Features
Read full description

Nutrient Logger is the offline-first nutrition tracker for people who want to know what's actually in their food - not just calories and macros, but the full spectrum of vitamins, minerals, and amino acids your body needs. Unlike cloud-based trackers, your food log never leaves your device - no account, no cloud, and no ads. And unlike macro-focused apps, every entry breaks down 80+ nutrients so you can spot gaps before they become deficiencies. Key Features: * Personalized From Day One Tell us how you eat - balanced, plant-based, keto or low-carb, carnivore, or pescatarian - and what you care about most, from energy to bone and joint health. Nutrient Logger moves the nutrients you're most likely to run low on to the top of your Nutrition tab, so the gaps that matter to you are the first thing you see. Change your answers anytime in settings. * Detailed Nutrient Breakdown See your daily intake of both macro and micronutrients, from protein and fiber to magnesium and vitamin B12. Choose which nutrients matter to you, reorder them, and set how many each group shows at a glance to build a Nutrition tab that fits your goals. * Barcode Scanner Scan any packaged food to instantly pull in its nutrition data. If we don't recognize a barcode, you can search manually or add it as a custom food - nothing stops you from logging. * Extensive Food Database Search from tens of thousands of foods, including whole ingredients and packaged items, to log meals with precision. Smart search understands what you mean - type "whole milk" and find it instantly, even expand common shortcuts like "OJ" or "PB". * Log Anything Scan barcodes, search our database, or add your own - and save your go-to meals for faster logging next time. * Personalized Targets Set your own calorie, macro, and micronutrient goals - or use recommended daily values based on your age and sex. Track your progress and stay balanced, with trend charts for calories, macros, and water alongside every nutrient. * Water Tracking Log water with one tap and watch an animated tracker fill toward your daily goal. See your hydration trends over 7 or 30 days (Premium). * Body Metrics & Goals (Premium) Track weight, body fat, BMI, and waist circumference - pick which ones matter to you. Set a goal and deadline and Nutrient Logger calculates the pace you need, projects your trajectory, and sets a BMR/TDEE-based calorie target to get you there. * Streaks & Achievements Build a daily logging streak and a weekly body-tracking streak, with milestone celebrations along the way. See your longest streak, total days logged, and more on your profile. * Nutrient Trend Charts (Premium) See how your intake of any nutrient changes over 7 or 30 days. Spot patterns, track consistency, and compare against your daily target. * Weekly Deficiency Insights (Premium) A weekly digest flags the nutrients you've been running low on, with foods that would help close the gap. * Apple Health Sync (Premium) Automatically write your daily calories, protein, fat, carbs, and water to Apple Health. Import weight data from Health to keep everything in one place. * CSV Export (Premium) Export your full food log with nutrient data for any date range - ideal for sharing with a doctor or dietitian. * Learn as You Log Discover what each nutrient does for your body and why it matters to your overall health. Nutrient Logger is perfect for anyone serious about nutrition-whether you’re on a specific diet, managing a deficiency, or just curious about your health. It’s time to go beyond calories and truly understand your food. * Apple Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ *

About

Ruby Health

This app offers a non-invasive way to estimate your Iron and Circulation Scores using a fingernail selfie. It helps you monitor blood health, track lifestyle factors like water intake and menstrual cycles, and identify potential signs of iron deficiency or poor circulation. The app provides insights into your well-being and encourages a healthy lifestyle.

Highlights
  • Estimate Iron Score via fingernail selfie
  • Estimate Circulation Score via fingernail selfie
  • Track water intake
  • Track menstrual cycle
  • Log mood, supplements, and medications
  • View historical data and trends
Features
Read full description

Ruby is the FIRST patented smartphone app that instantly estimates your Iron Score* and your Circulation Score*. Ruby is a wellness tool intended only for maintaining and encouraging a healthy lifestyle, which may reduce the impact of iron deficiency or iron deficiency anemia. Ruby is not intended for diagnosing, curing, managing, preventing, or treating any disease or condition. Have you experienced dizziness, fatigue, or frequent headaches? Curious about your dietary iron needs? Ruby is designed to empower you to optimize your health by monitoring your blood health effectively. You can check your iron and circulation scores, log your water intake, and track your menstrual cycle in one convenient place. 1. Download the app 2. Take a fingernail selfie 3. Get your Iron and Circulation Scores, and more! Featured in Forbes, Business Insider, Bloomberg, TechCrunch, Fast Company, Associated Press, and BBC. *What is an Iron Score? It is a non-invasive assessment that helps determine your risk of iron deficiency anemia using a simple fingernail selfie to analyze the paleness of your fingernail beds. Not getting enough iron, folate or vitamin B12 in your diet may cause: • Brittle nails • Fatigue • Physical weakness • Lightheadedness • Dizziness • Pallor (Pale or yellowish skin) • Shortness of breath • Headaches • Cold hands and feet *What is a Circulation Score? is a measure of how fast your blood is moving in your fingertips. A score lower than 50 indicates poor circulation. Consult your doctor. A score between 50 and 75 indicates that circulation is borderline and could be improved. A score over 75 is normal. The majority of women and men score between 75 - 100. You may notice increases and decreases with physical activity. Ruby: Allows you to track your mood, supplements, medications, water intake, and menstrual cycle for the day. Gives you instant Iron and Circulation Scores with a fingernail selfie Saves your history in shareable format Ruby now offers a premium subscription that includes the following features: + Unlimited Tests – You can test as often as you want to get a better idea of how diet and lifestyle changes impact your blood health. The basic (free) subscription has a limit of 3-iron score tests and 50 circulation tests per month. + Calibration – Get 50% more accurate results with your unique algorithm. It calibrates every time you upload lab tests and take a fingernail selfie. + Data insights - You have full access to past test results. See how your Iron and/or Circulation Score has changed over time and track trends such as your mood and supplement use. + Set reminders - We know life gets hectic, and we can help you tap into your health by sending you reminders on when to take your fingernail selfie. Ruby is perfect for: • Women, especially those who are pregnant or have just given birth • Parents of young children and infants • People over the age of 65 • Vegetarians & vegans • High-performance athletes • Anyone managing their nutritional intake! *Ruby has room for improvement for users with severe anemia or other severe, chronic, health conditions. If you fall into this category and would like information on our product optimizations that would work best for you, please email ruby@sanguina.com for more information. At Sanguina, we're committed to empowering people to live better lives through accessible science and technology. Before making any medical decisions, seek a doctor's advice in addition to using the app. Terms & Conditions: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Nutrient Logger4 screens
Ruby Health3 screens

Verdict

The call

Nutrient Logger and Ruby Health both sit at 4.4 stars, but that hides the real split: 81% of Nutrient Logger's written reviews are positive against 23% of Ruby Health's. Ruby Health's advantage is ads (none vs shown) and ratings volume (2K vs 125). On price, rating, update cadence and in-app purchases 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. Nutrient Logger sells 4 in-app purchases, starting at $1.99 per month and Ruby Health sells 5 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.4 for Nutrient Logger against 4.3 for Ruby Health. That said, the two scores are not equally well evidenced: Ruby Health has 2K ratings behind it against 125, so its average is the more settled of the two. Written reviews are what separate them: 81% of Nutrient Logger's written reviews are positive against 23% of Ruby Health's.

UpkeepUpdate frequency

Nutrient Logger ships an update every 10 days, Ruby Health fortnightly. The most recent releases landed on October 21, 2026 and October 22, 2026 respectively.

Scorecard4 real differences · 6 level
Nutrient Logger versus Ruby Health: the parameters behind the verdict, then further details
ParameterNutrient LoggerRuby Health
PriceFreeFree
Rating4.4 (125 ratings) — better4.3 (2K ratings)
Positive reviews80.8% of reviews — better22.7% of reviews
Number of ratings1252K — better
Update frequencyEvery 10 days — betterFortnightly
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhoneiPhone, iPod — better
Requires iOS26.015.0 — better
Further details — not scored
Size73 MB117 MB
Age rating4+4+
DeveloperJason VanceSanguina, Inc

Customer experience

Nutrient Logger

All ratings120 ratings
Positive88.3%
Neutral3.3%
Negative8.3%
Written reviews26 reviews
Positive80.8%
Neutral0.0%
Negative19.2%

Ruby Health

All ratings2,011 ratings
Positive82.9%
Neutral4.3%
Negative12.7%
Written reviews119 reviews
Positive22.7%
Neutral13.4%
Negative63.9%

Bugs and requests

Nutrient Logger

Not enough reviews yet to summarise bugs or requests.

Ruby Health

Reported bugs

3 issues
  • Camera focus problems
  • App freezing or crashing
  • Verification link issues

Requested features

3 requests
  • Bypass calibration option
  • More free tests per month
  • Compatibility improvements for newer devices

In-app purchases

4 purchases

Nutrient Logger

Subscriptions4
  • Premium Monthly - Discounted7 Days trial$1.991 Month
  • Premium Monthly$5.991 Month
  • Premium Yearly - Discounted7 Days trial$9.991 Year
Show 1 more
  • Premium Yearly$29.991 Year
5 purchases

Ruby Health

Subscriptions5
  • MyMobile Monthly Legacy7 Days trial$8.991 Month
  • Ruby Premium Monthly7 Days trial$12.991 Month
  • MyMobile Semi-Annual Legacy7 Days trial$29.996 Months
Show 2 more
  • MyMobile Annual Legacy7 Days trial$69.991 Year
  • Ruby Premium Annual7 Days trial$99.991 Year

Questions

Is Nutrient Logger free?
Nutrient Logger is free to download, with in-app purchases available.
Is Ruby Health free?
Ruby Health is free to download, with in-app purchases available.
Which has better reviews, Nutrient Logger or Ruby Health?
Nutrient Logger is rated higher. Nutrient Logger averages 4.4 out of 5 from 125 ratings, while Ruby Health averages 4.3 from 2K ratings.
Do Nutrient Logger or Ruby Health have ads?
Nutrient Logger shows ads; Ruby Health does not.
Which is updated more often, Nutrient Logger or Ruby Health?
Nutrient Logger ships an update every 10 days, and Ruby Health fortnightly. Most recently, Nutrient Logger was updated on October 21, 2026 and Ruby Health on October 22, 2026.

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