Pump Fit vs NutrientOS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pump Fit
This app guides you through tempo training with precise 4-phase rep structures and audio cues. Create custom workouts, track your progress, and build muscle with enhanced time under tension. It works offline and allows sharing routines with friends.
- 4-phase tempo training with timers
- Custom workout creation and editing
- Extensive exercise library
- Workout history and weight tracking
- Offline functionality
- Workout sharing and community features
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Pump is a tempo training app focused on time under tension for better muscle gains. Follow precise 4-phase tempos for each lift (eccentric-pause-concentric-pause) with visual countdowns and audio cues. Perfect your form and maximize time under tension. FEATURES: Tempo Training - 4-number tempo format (e.g., 3-1-2-1) - Visual countdown timer - Audio cues on phase changes Custom Workouts - Create and edit workouts - Add exercises from the library - Superset support for compound movements - Drag to reorder exercises Exercise Library - Browse exercises with tempo presets - Create custom exercises - Share exercises globally Workout History - Track your progress - View past workout completions - Weight tracking per set Offline Support - Works without internet - Perfect for gym basements - Syncs when back online Share Workouts - Export workouts via link - Friends can import your routines - Build your fitness community Pump is rebuilt from the ground up based on Train Centric, a popular tempo training app with hundreds of 5-star reviews.
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
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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
Screenshots
Verdict
The clearest difference is in-app purchases: Pump Fit at none against NutrientOS's 2. Pump Fit also leads on update cadence (every 5 days vs fortnightly) and ratings volume (13 vs 1). NutrientOS's advantage is iOS requirement (15.0 vs 18.0). On price, rating, review sentiment 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
Both are free to download. NutrientOS sells 2 in-app purchases, starting at $7.99 per month. Pump Fit asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Pump Fit against 5.0 for NutrientOS. That said, the two scores are not equally well evidenced: Pump Fit has 13 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
Pump Fit ships an update every 5 days, NutrientOS fortnightly. The most recent releases landed on September 13, 2026 and September 19, 2026 respectively.
| Parameter | Pump Fit | NutrientOS |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (13 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 13 — better | 1 |
| Update frequency | Every 5 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 37 MB | 22 MB |
| Age rating | 4+ | 17+ |
| Developer | Sam Bender | Jeremiyah Escobedo |
Customer experience
Pump Fit
NutrientOS
In-app purchases
Pump Fit
No in-app purchases
NutrientOS
- Atlas Pro Monthly$7.991 Month
- Atlas Premium Monthly$12.991 Month









