Rubato Groups vs Power4 Pilates
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rubato Groups
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This is an alpha version of our Bio-metrical music recommendation. It works with Garmin smartwatches, and provides insights and musical recommendations, reflecting the effect of the music on your body. The app is based on solid scientific evidence, that correlates specific musical attributes such as Tempo, key, Complexity and Frequency, to Bio-markers such as Heart rate, Stress levels and respiratory rates. Over all, the app gives the researcher a way to measure the well-known effect of music on subjects, while optimizing well-being and managing tress levels.
Power4 Pilates
Book fitness classes and join waitlists with ease. Track your favorite instructors and view your upcoming schedule. Integrates with Apple HealthKit to encourage activity.
- Book classes
- Join waitlists
- Track favorite instructors
- View upcoming classes
- Apple HealthKit integration
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Welcome to the Power4 Pilates App! We're so excited you've joined us on your fitness journey! It's time to get started. Download our app today to start booking classes! Great app features: -Easily book classes & join waitlists -Check to see when your favorite instructor is teaching -View your upcoming classes APPLE HEALTHKIT We also use HealthKit to allow users to share their activity and workout data with the app. This data is used to incentivise users to stay active.
Screenshots
Verdict
The clearest difference is update cadence: Rubato Groups at fortnightly against Power4 Pilates's every 12 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.
Rubato Groups ships an update fortnightly, Power4 Pilates every 12 months. The most recent releases landed on September 7, 2026 and October 7, 2026 respectively.
| Parameter | Rubato Groups | Power4 Pilates |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.2 (41 ratings) — better |
| Number of ratings | — | 41 — better |
| Update frequency | Fortnightly — better | Every 12 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 68 MB | 103 MB |
| Age rating | 4+ | 17+ |
| Developer | Rubato Inc. | Power4 Pilates LLC |
In-app purchases
Rubato Groups
No in-app purchases
Power4 Pilates
No in-app purchases
Questions
Is Rubato Groups free?
Is Power4 Pilates free?
Do Rubato Groups or Power4 Pilates have ads?
Which is updated more often, Rubato Groups or Power4 Pilates?
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