TREMBLE Studios vs RivalByM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TREMBLE Studios
Book reformer Pilates classes with your favorite instructors and reserve your machine spots. Manage your account, billing, and view scheduled classes all in one place. Discover South Florida's premier reformer Pilates brand.
- Find instructors and locations
- Book reformer Pilates classes
- Reserve machine spots
- View scheduled classes
- Manage account and billing
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It's here! This is the official App for TREMBLE - South Florida's Premiere Reformer Pilates Brand. Everything you ever wanted and more. Find your favorite instructors and locations, book your classes, and reserve your machine spots! You can also see all of your scheduled classes here and manage your account and billing information. Find us also on instagram @makeittremble_ and on our website at www.makeittremble.com.
RivalByM
This fitness app encourages consistency by having users compete with friends based on their adherence to workout and recovery plans. Earn points for showing up, join challenges, and verify results through integrations or manual entry. It focuses on accountability and friendly competition to keep users motivated.
- Compete with friends on discipline
- Track workouts and recovery days
- Earn points for daily check-ins
- Join named challenges (e.g., 5K, Hyrox)
- Connect Apple Health for verification
- Group chat for strategy and discussion
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Rival is a fitness accountability app built around one simple idea: it's easier to stay consistent when people are watching. Instead of tracking workouts in private, Rival lets you compete with friends based on discipline and follow-through. How it works: • Set your weekly plan (workout days and recovery days) • Post a daily check-in — workout or planned recovery • Earn points for showing up • Compete in private groups where missed days are visible Both workouts and recovery days earn points — because sticking to your plan is what matters. Take on named challenges: • Pick an event — 1 Mile, 5K, 10K, Half Marathon, Murph, or Hyrox • Join a monthly cohort and race for the best time • Connect Apple Health to attach a real workout and verify your result — or enter your time by hand • Talk strategy with your cohort in built-in chat Why Rival is different: • No fake streaks • No guessing who actually trained • No motivation hacks Just proof, consistency, and friendly competition. Whether you're training hard or rebuilding a routine, Rival keeps you honest — and keeps you going.
Screenshots
Verdict
The clearest difference is ratings volume: TREMBLE Studios at 2.3K against RivalByM's 15. RivalByM's advantage is monetization model (free vs ad-supported) and device support (3 vs 1). On price, rating, review sentiment and update cadence 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.
On the App Store both sit at effectively the same score — 5.0 for TREMBLE Studios against 5.0 for RivalByM. That said, the two scores are not equally well evidenced: TREMBLE Studios has 2.3K ratings behind it against 15, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
TREMBLE Studios ships an update monthly, RivalByM every 4 weeks. The most recent releases landed on October 16, 2026 and October 1, 2026 respectively.
| Parameter | TREMBLE Studios | RivalByM |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2.3K ratings) | 5.0 (15 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2.3K — better | 15 |
| Update frequency | Monthly | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 38 MB | 68 MB |
| Age rating | 4+ | 12+ |
| Developer | Coral Tremble Gables LLC | MOISES DANIEL SAKKAL EL MANN |
Customer experience
TREMBLE Studios
RivalByM
In-app purchases
TREMBLE Studios
No in-app purchases
RivalByM
No in-app purchases









