4D Gym vs Harmony Pilates Studio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
4D Gym
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Download the 4D Gym app to easily book classes and manage your fitness experience - anytime, anywhere. Make a reservation, get added to a wait list, check your profile and membership status, and more – all from your device. Visit https://www.4dgyms.com/ to learn more.
Harmony Pilates Studio
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The Harmony Pilates Studio app makes it very easy for you to manage your Harmony Pilates Studio account, book into our classes and events and keep in touch with us. You can easily message us if you have a question or want to share something with us. You can also follow our public feed to see any announcements we make, promos we run, or content we share.
Screenshots
Verdict
The clearest difference is update cadence: Harmony Pilates Studio at every 3 months against 4D Gym's every 13 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
4D Gym ships an update every 13 months, Harmony Pilates Studio every 3 months. The most recent releases landed on October 25, 2026 and October 12, 2026 respectively.
| Parameter | 4D Gym | Harmony Pilates Studio |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 13 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 31 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | The Trustee for ACMO Family Trust | Momence, Inc. |
In-app purchases
4D Gym
No in-app purchases
Harmony Pilates Studio
No in-app purchases
Questions
Is 4D Gym free?
Is Harmony Pilates Studio free?
Do 4D Gym or Harmony Pilates Studio have ads?
Which is updated more often, 4D Gym or Harmony Pilates Studio?
Other comparisons
