Performance Dynamics vs Underdog Boxing Gym
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Performance Dynamics
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Guiding you through your health and fitness journey! - Book classes online in just a few clicks - Create your own exercise programmes or select from a range provided by the club - Track your progress from all your workouts - Keep track of your body measurements and progress - Take part in regular fitness challenges - Contact club staff directly - Interact and get to know your fellow members - See all the latest club news, offers and events - Refer Friends to the club online - Recipes Library - Video Workout Library Apple Health App Integration Track your progress with our HealthKit app integration to import and measure your daily steps, distance or calories burnt. Also use HealthKit to import your data from a range of different wearable devices.
Underdog Boxing Gym
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Manage your membership and bookings easily. Our app will enable you to easily sign up, purchase memberships, class passes, courses and 1-to-1 coaching sessions. You can also book, cancel and reschedule your bookings on the go.
Screenshots
Verdict
The clearest difference is update cadence: Performance Dynamics at every 9 months against Underdog Boxing Gym's every 32 months. Underdog Boxing Gym's advantage is device support. On price, in-app purchases and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.
Performance Dynamics ships an update every 9 months, Underdog Boxing Gym every 32 months. The most recent releases landed on September 22, 2026 and September 19, 2026 respectively.
| Parameter | Performance Dynamics | Underdog Boxing Gym |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 months — better | Every 32 months |
| Ads | — | No |
| In-app purchases | No | No |
| Devices | — | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 55 MB | 87 MB |
| Age rating | 4+ | 4+ |
| Developer | TeamUp Sports | Treshna Enterprises |
In-app purchases
Performance Dynamics
No in-app purchases
Underdog Boxing Gym
No in-app purchases
Questions
Is Performance Dynamics free?
Is Underdog Boxing Gym free?
Which is updated more often, Performance Dynamics or Underdog Boxing Gym?
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