PhysiqueOS vs Onus Strength
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PhysiqueOS
This fitness tracker is designed for weightlifters and data-driven athletes. It offers detailed metrics, habit tracking, and AI insights to optimize training and recovery. Visualize progress, identify patterns, and stay consistent with evidence-based optimization.
- Track weight, sets, reps, RPE, and volume
- Measure sleep, energy, mood, and recovery
- Build progress trends
- AI-powered adaptive reminders
- Visualize training and lifestyle intersections
- Streak-based motivation
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PhysiqueOS is the fitness tracker built for lifters who value data, science, and results. Designed for evidence-based athletes and optimization-focused gym-goers, PhysiqueOS combines habit tracking, detailed metrics, and AI insights to help you train smarter — not just harder. Built for the Data-Driven Lifter - Track your weight, sets, reps, RPE, and volume - Measure performance across sleep, energy, mood, and recovery - Build trends over time that actually explain your progress Evidence-Based Optimization - Get weekly insights that align with principles of progressive overload, fatigue management, and recovery - AI-powered reminders adapt to your behavior — no more generic push notifications Analytics That Work for You - Visualize how your training, recovery, and lifestyle intersect - Spot patterns, plateaus, and surges in performance - Log in seconds, analyze over weeks and months Consistency Engineered - Streak-based motivation tied to habit loops - Personalized check-ins to reinforce behavior - Track more than workouts — track effort Whether you're cutting, bulking, or maintaining — PhysiqueOS acts as your personal performance dashboard. Get granular with your training. Stay consistent without burnout. Make progress that actually makes sense. PhysiqueOS: built by lifters, for lifters — with the science to back it up.
Onus Strength
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Onus: own your workout tracker. No subscriptions. No recurring fees. Pay once, lift forever. Tired of paying yearly just to log your sets? Onus is a complete strength training tracker built for lifters who are done renting their apps. Real Apple Watch Integration Track your workout from your iPhone, your Apple Watch, or both at once — fully synced in real time. Leave your phone in your bag and go watch-only. Leave the watch at home and use just your phone. Or run both together and switch seamlessly mid-workout. Even without your phone nearby, the Watch app starts, logs, and finishes a full workout on its own — including live heart rate and calories, a Now Playing music screen, and a watch face complication for one-tap access. Fast, focused, and lightweight No bloated media slowing things down. Onus is built to open instantly and stay out of your way — with quick links to trusted exercise tutorials whenever you need a refresher on form. A massive exercise library Browse 1,200+ built-in exercises with muscle group and equipment info, plus instructional lookups via YouTube and other trusted sources — or add your own custom exercises for movements or gym equipment that aren't in the catalog. Everything you need to train • Log sets, reps, and weight with a fast, intuitive interface, including live +/- adjusters and a custom keypad • Automatic personal record detection, celebrated with a trophy animation and marked everywhere your best lifts appear • Group exercises into supersets and circuits with round-by-round rest control • Built-in rest timers that keep counting even in the background • Build and reuse custom routines and multi-workout programs, or start from one of Onus's preloaded programs • Track your progress over time with clear history, weekly summaries, and trend graphs for 1RM, top set, volume, and max reps • Export your workout history to CSV, or share programs and workouts with training partners via file import/export • Automatic private iCloud backup, recoverable if you lose or replace your device Built to last, not to bill No subscriptions. No paywalls hiding basic features. No "premium tier" games. Pay once, and Onus is yours — including future iOS compatibility updates. Private by design Onus doesn't collect, transmit, or sell your data. No account, no ads, no tracking — everything lives on your device (and your own private iCloud, only if you choose to back up). If you've ever felt like your fitness app was working against your wallet more than your workout, Onus was built for you.
Screenshots
Verdict
The clearest difference is in-app purchases: PhysiqueOS at none against Onus Strength's 1. PhysiqueOS also leads on iOS requirement (15.1 vs 17.0). On price, ads 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. Onus Strength sells 1 one-off in-app purchase. PhysiqueOS asks for nothing beyond the download.
| Parameter | PhysiqueOS | Onus Strength |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Daily | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, Apple Watch |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 39 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Mark Tretyak | Nathaniel Faiad |
In-app purchases
PhysiqueOS
No in-app purchases
Onus Strength
- Full Unlock$19.99









