NutrientOS vs Workout Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NutrientOS
Track your nutrition, understand your meals, and build healthier habits with food logging, macro and micronutrient tracking, and workout logging. Optional AI tools offer advanced guidance and insights for personalized wellness.
- Food diary with calories, macros, and micronutrients
- Barcode and food search
- Restaurant menu browsing
- Fitness, hydration, and sleep tracking
- AI meal scan
- AI Coach for guidance
- AI recipe builder
Read full descriptionHide full description
NutrientOS is a calorie counter, macro tracker, micronutrient tracker, food scanner, workout log, and progress tracker built for people who want more than basic food logging. Track calories, protein, carbohydrates, fat, vitamins, minerals, meals, workouts, recovery, biometrics, and long-term progress in one place. Search foods, scan barcodes, create recipes, compare restaurant meals, and review detailed nutrition insights to better understand what you eat. FOOD, CALORIE, AND MACRO TRACKING • Log meals with a detailed food diary • Track calories, protein, carbohydrates, fat, and micronutrients • Search foods and scan product barcodes • Create custom foods and recipes • Save favorites and schedule recurring foods • Review recent foods for faster logging • Track serving sizes, grams, and portions DETAILED NUTRITION INSIGHTS • View vitamins, minerals, amino acids, and nutrient coverage • Review food grades and ingredient-based food-quality insights • See satiety, absorption, and food-pairing information • Identify nutrient gaps and food sources • Review daily and longer-term nutrition trends • Understand when nutrient information is estimated or unavailable RESTAURANT NUTRITION • Browse restaurant menus • Search thousands of menu items • Compare meals side by side • Sort by calories, protein, sodium, food grade, and protein density • Find options that better match your nutrition goals FITNESS, RECOVERY, AND PROGRESS • Log workouts and training sessions • Track weight and body measurements • Record water, supplements, sleep, mood, energy, and recovery • Track supported biometrics and custom health metrics • Review nutrition, training, and recovery patterns over time • Connect supported Apple Health data IMPORT AND EXPORT • Import supported MyFitnessPal data • Import supported Cronometer data • Export your personal NutrientOS data • Keep your existing nutrition history in one place NUTRIENTOS PRO AND PREMIUM NutrientOS Pro and NutrientOS Premium require an additional in-app purchase. Paid features may include: • AI Meal Scan for estimating food and nutrition from a photo • NutrientOS Coach for nutrition and fitness guidance • AI Recipe Builder • AI meal-plan generation • AI training-plan generation • Body-composition photo analysis • Weekly nutrition and progress checkups • Advanced nutrition, training, and recovery insights • Interactive charts and longer reporting ranges • Higher AI usage limits SUBSCRIPTIONS NutrientOS Pro and NutrientOS Premium are optional auto-renewable subscriptions. Payment is charged to your Apple ID account after purchase confirmation. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current billing period. You can manage or cancel your subscription in your App Store account settings. IMPORTANT INFORMATION NutrientOS is intended for informational wellness, nutrition, and fitness tracking. It does not provide medical diagnosis, medical treatment, or medical advice. AI-generated estimates and guidance may be incomplete or inaccurate and should be reviewed before use. Consult a qualified healthcare professional regarding medical concerns or major changes to your diet or exercise routine. Terms of Use: https://nutrientos.com/terms Privacy Policy: https://nutrientos.com/privacy
Workout Tracker
Read full descriptionHide full description
THYMOS is an offline-first workout tracker for serious strength training. Log your lifts fast, track real progress, and keep control of your training data. No account required. No social feed. No distractions during your workout. From barbells and dumbbells to machines, bodyweight exercises, and weighted calisthenics, THYMOS helps you record every set with less friction. WHY THYMOS? • Works offline • No account required • Fast set logging • Privacy-focused by design • No ads or social feed • Built for strength training, hypertrophy, powerlifting, and weighted calisthenics • Supports beginner, intermediate, and advanced training styles BUILT FOR REAL TRAINING THYMOS is designed around real training. Log sets, reps, weight, effort, and key workout details without fighting the app between sets. Track: • Warm-up sets • Working sets • Drop sets • Back-off sets • AMRAP sets • Failure sets • Supersets • Rest times • Bodyweight and external load The rest timer is built to support your session, not interrupt it. The plate calculator helps you load the bar faster. Bodyweight volume tracking gives a clearer picture of progress for calisthenics and weighted movements. SMART PROGRESSION GUIDANCE When your history supports it, THYMOS can suggest adding weight, repeating the current load, or returning lighter after a long break. Suggestions use completed sets, rep targets, effort, equipment, and training history across supported built-in and custom programs, plus saved templates. Nothing changes unless you tap Apply. WORKOUT PROGRAMS Choose from 26 expert-curated workout programs for different levels and goals. Choose from: • Beginner foundation programs • Upper/lower splits • Push/pull/legs programs • Dumbbell-only programs • Bodyweight training programs • Hybrid barbell and calisthenics programs • Weighted calisthenics programs Programs are built with progression, deloads, and practical training structure in mind. You can see why a program was selected, swap exercises, or change your plan when needed. EXERCISE LIBRARY THYMOS includes a comprehensive exercise library covering major muscle groups and movement patterns. • 430+ built-in exercises • Barbell, dumbbell, cable, machine, and bodyweight movements • Weighted pull-ups, weighted dips, and calisthenics variations • Form cues for each movement • Custom exercise creation WEIGHTED CALISTHENICS SUPPORT THYMOS treats weighted calisthenics as a first-class training style. Track bodyweight, external load, and total system weight for movements like weighted pull-ups and weighted dips. Follow progressions and build strength without forcing calisthenics into a generic lifting format. HONEST TRAINING ANALYTICS THYMOS focuses on useful, transparent training data. • Personal record tracking • Muscle group heatmap • Volume tracking by set type • Exercise-by-exercise progress • Clear 1RM estimates • Workout history and trends Measured data stays separate from estimated data, so your progress is easier to understand. YOUR DATA, YOUR RULES THYMOS is built for lifters who care about privacy and control. • No account required • Training data stays on your device • Optional cloud backup, when enabled • CSV and JSON export • No ads • No social feed • No likes, followers, or leaderboards WHAT THYMOS DOES NOT DO THYMOS is a training tool, not a social network. • No public feed • No follower system • No leaderboards • No streak pressure • No fake badges • No notification spam START TRAINING WITH LESS FRICTION THYMOS is for people who want a serious workout log, fast set tracking, clear progress data, and full control over their training history. Lift. Log. Own your data. A free trial is available. Monthly, annual, and lifetime options are offered through in-app purchase. Terms of Use: https://thymos.fit/terms Privacy Policy: https://thymos.fit/privacy
Screenshots
Verdict
The clearest difference is update cadence: Workout Tracker at every 3 days against NutrientOS's fortnightly. On price, ads, in-app purchases and device support 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
Both are free to download. NutrientOS sells 2 in-app purchases, starting at $7.99 per month and Workout Tracker sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
NutrientOS ships an update fortnightly, Workout Tracker every 3 days. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.
| Parameter | NutrientOS | Workout Tracker |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Fortnightly | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 22 MB | 184 MB |
| Age rating | 17+ | 4+ |
| Developer | Jeremiyah Escobedo | Atakan ER |
In-app purchases
NutrientOS
- Atlas Pro Monthly$7.991 Month
- Atlas Premium Monthly$12.991 Month
Workout Tracker
- THYMOS Pro Monthly14 Days trial$3.991 Month
- THYMOS Pro Yearly14 Days trial$29.991 Year
- THYMOS Pro Lifetime$79.99









