Youdon vs VoluMax
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Youdon
Access personalized exercise programs designed by your physical therapist. Receive real-time feedback on your performance with AI posture recognition and connect with medical professionals for remote assessments and consultations.
- Personalized exercise programs
- AI posture recognition
- 1,500+ demonstration movements
- Home exercise tracking
- Connection with medical teams
- Remote assessments and consultations
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Through the Youdon APP, you can perform exercise programs tailored by your physical therapist anytime, anywhere. During your workouts, the system automatically records your exercise performance and provides real-time feedback to your dedicated therapist. *Youdon is committed to providing convenient and safe exercise programs *Helps improve or maintain musculoskeletal health *Relieves pain and discomfort and enhances quality of life Youdon Features: ・Personalized exercise programs designed exclusively for you ・Pose⁺ AI-powered exercise posture recognition and comparison ・Over 1,500 standardized demonstration movements ・Home exercise activity tracking ・Thoughtful exercise safety reminders ・Connection with professional medical teams ・Remote online assessments and evaluations ・Remote intelligent exercise recommendations ・Easy and convenient expert appointment booking ・Appointment time reminders ・Online video consultations with experts ・Subscription upgrade services available * Important Notes The assessments and health information provided by this APP are not diagnostic or therapeutic and do not replace professional medical advice. Video consultation services are by appointment only. If you require a video consultation, please complete the appointment form and wait for our staff to contact you. * If you encounter any issues or have feedback, please contact our customer service center. Youdon Customer Service Email: service@youdon.com.tw * Terms & Policies - Terms of Use: https://www.youdon.com.tw/en/terms-of-use - Privacy Policy: https://www.youdon.com.tw/en/privacy-policy - Subscription and Redemption Service Terms: https://www.youdon.com.tw/en/subscription-and-redemption-service-terms - Video Consultation Consent Form: https://www.youdon.com.tw/en/consentto-video-consultation
VoluMax
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VoluMax is a weightlifting tracker built around one idea: training for hypertrophy is about stimulating each muscle group with the right weekly volume — not just lifting heavy. Log every set with weight, reps, and RIR (Reps in Reserve), and VoluMax instantly tells you how much hypertrophy stimulus you've actually accumulated this week, broken down by muscle group. No more guessing whether your back is undertrained or your chest is overcooked. WHY VOLUMAX Most workout trackers count sets. VoluMax measures stimulus. Two sets of bench press at RIR 0 are not the same as two sets at RIR 5 — and your muscles know it. By using your RIR input, VoluMax converts every set into an "effective reps" score and an attributed contribution to each muscle worked. The result is a weekly volume picture that reflects how hard you actually trained, not just what you wrote down. KEY FEATURES • Fast in-gym set logging — weight, reps, RIR in seconds • Built-in exercise database with fractional muscle mapping (e.g. bench press splits stimulus across chest and triceps) • Live workout view: see today's effective reps per muscle as you lift • Weekly Summary: per-muscle volume, effective reps, and weekly potential % • Daily Summary: review and edit any past workout • Volume landmarks per muscle: Below MEV, At MEV, In MAV, Near MRV, Above MRV • 10 tracked muscle groups: chest, back, shoulders, triceps, biceps, quads, glutes, hamstrings, calves, core • Mobile-first dark theme designed for use under gym lighting • 100% local — no account, no cloud, no ads, no tracking HYPERTROPHY SCIENCE, BUILT IN VoluMax uses an effort-aware hypertrophy model based on published volume landmarks: • MEV (Minimum Effective Volume) — the floor where growth begins • MAV (Maximum Adaptive Volume) — the ideal hypertrophy training range • MRV (Maximum Recoverable Volume) — the ceiling before recovery suffers Each set's score factors in RIR (effort), rep range, and per-muscle diminishing returns within the day and across the week. The output is a 0-100% weekly potential bar for every muscle group, so you can see at a glance which muscles need another session and which are ready for a deload. WHO IT'S FOR • Lifters running hypertrophy-focused programs (PPL, upper/lower, full body) • Bodybuilders managing weekly set volume per muscle • Anyone using RIR-based progressive overload • Coaches and self-coached lifters who care about volume distribution • Gym-goers who want a simple weightlifting log with real analytics HOW IT WORKS 1. Tap Start Workout 2. Pick exercises from the built-in database 3. Log each set: weight, reps, RIR 4. Watch your effective reps and per-muscle volume update live 5. End the workout — your weekly summary updates automatically 6. Review the week and plan your next session around what's actually undertrained PRIVACY Your training data lives on your device. There's no sign-up, no email, no cloud sync, and no analytics SDK reading your workouts. Uninstalling the app removes the data with it.
Screenshots
Verdict
Youdon and VoluMax are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Youdon | VoluMax |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Fortnightly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 170 MB | 3 MB |
| Age rating | 12+ | 4+ |
| Developer | Meco Technology Co.,LTD | APEX FORGEWORKS LLC |
In-app purchases
Youdon
No in-app purchases
VoluMax
No in-app purchases









