RE24 vs Underground Pilates Studio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RE24
Experience a full-spectrum infrared sauna with guided virtual instructors for personalized workouts. Enjoy diverse fitness classes like yoga, cycling, and rowing, from 10 to 30 minutes, plus access to a functional training area.
- Full-spectrum infrared saunas
- Virtual instructor guidance
- Result-driven fitness classes
- Yoga, cycling, rowing
- 10-30 minute workout sessions
- Functional training area
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Redefine your workout with RE24. Say hello to 24/7 access, quick format, result-driven classes and various fitness concepts, all inside our innovative full-spectrum infrared saunas. Our virtual instructors provide personalized guidance so you can pull back or set PRs at a fraction of personal training costs. Yoga, cycling, rowing and more – we've everything to keep you engaged and excited. With classes ranging from quick 10-minute sessions to satisfying 30-minute workouts, fitting fitness into your day has never been easier. And guess what? You also get access to our functional training area with traditional gym equipment.
Underground Pilates Studio
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Transform Your Body and Mind with Reformer Pilates Discover a space where precision, strength, and balance come together. Our reformer Pilates workouts are designed to strengthen your core, enhance flexibility, and align your body, all while providing a tranquil escape from the everyday. Whether you're a beginner or an experienced enthusiast, our tailored classes ensure you feel supported, challenged, and empowered. With experienced instructors, intentional programming, and a serene studio atmosphere, you’ll leave each session feeling stronger, more balanced, and refreshed. Download the Underground Pilates Studio app to book your first class today. Your journey to strength and clarity starts here.
Screenshots
Verdict
RE24 and Underground Pilates Studio are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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.
RE24 ships an update every 8 months, Underground Pilates Studio every 10 months. The most recent releases landed on September 17, 2026 and September 19, 2026 respectively.
| Parameter | RE24 | Underground Pilates Studio |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 8 months — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 452 MB | 124 MB |
| Age rating | 4+ | 12+ |
| Developer | ZIFIT LA JOLLA, INC. | Sutra Fitness, Inc. |
In-app purchases
RE24
No in-app purchases
Underground Pilates Studio
No in-app purchases
Questions
Is RE24 free?
Is Underground Pilates Studio free?
Do RE24 or Underground Pilates Studio have ads?
Which is updated more often, RE24 or Underground Pilates Studio?
Other comparisons
