StrengthIQ vs NutrientOS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
StrengthIQ
Log barbell lifts and pull-ups with detailed set tracking. View exercise history and trends with suggested loads and estimated 1RM calculations. Workout data is stored locally on your device for privacy.
- Log barbell lifts and pull-ups
- Track weight, reps, and set styles
- Suggested loads and estimated 1RM
- Dedicated pull-up tracking
- Privacy-focused local data storage
- Exercise-specific accent colors
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StrengthIQ is a focused strength-training log for iPhone. Pick an exercise, log sets in seconds, and review history when you want to see how you’re trending. Barbell lifts (seven exercises) Log weight (lb), reps, optional percentage of 1RM, and optional set style (regular, eccentric, drop set, max unbroken, pause, cluster). Suggested loads follow NSCA-style rounding to 5 lb when you use % of 1RM, with full manual control. Estimated 1RM uses the Epley formula from your logged sets (rounded to the nearest 5 lb) and updates from your most recent calendar-day session for each lift. You can also set manual 1RM overrides in Settings. Pull-ups Dedicated flow without 1RM / NSCA load UI: log reps over time, choose a variant (standard/strict, chin-up, wide, close, commando, weighted, chest-to-bar), note eccentric emphasis, and add weight when you use it. Exercises included Deadlift, bench press, squat, Pendlay row, hip thrust, pull-up, hang clean, barbell overhead press—each with its own accent color for quick scanning. Privacy Workout data is stored on your device only. There is no cloud sync and no account in v1. Uninstalling may remove app data; use device backups if you need to keep records. Note StrengthIQ is built with a dark UI and navigation patterns aligned with IntervalIQ (IntervalTimer), if you use both apps side by side.
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: StrengthIQ at none against NutrientOS's 2. StrengthIQ also leads on update cadence (every 6 days vs fortnightly). NutrientOS's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, rating, ratings volume 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. StrengthIQ asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for StrengthIQ against 5.0 for NutrientOS. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
StrengthIQ ships an update every 6 days, NutrientOS fortnightly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | StrengthIQ | NutrientOS |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (2 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 6 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 22 MB |
| Age rating | 4+ | 17+ |
| Developer | MICHAEL ANTHONY ROBERTS | Jeremiyah Escobedo |
Customer experience
StrengthIQ
NutrientOS
In-app purchases
StrengthIQ
No in-app purchases
NutrientOS
- Atlas Pro Monthly$7.991 Month
- Atlas Premium Monthly$12.991 Month









