G21 vs Starcore Studio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
G21
Easily plan and schedule your fitness classes directly from your mobile device. View class schedules, sign up for sessions, and access studio location information. Optimize your time and enjoy the convenience of managing your fitness activities on the go.
- View class schedules
- Sign up for classes
- Access studio location information
- Optimize time management
- Convenient mobile access
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Download the Gravity 21 App today to plan and schedule your classes! From this mobile App you can view class schedules, sign-up for classes, as well as view the studio’s location information. Optimize your time and maximize the convenience of signing up for classes from your device! Download this App today!
Starcore Studio
Easily browse and purchase class packs or membership options. View the schedule, filter by class type, and book reservations to manage your fitness routine and stay committed to your goals.
- Purchase class packs and memberships
- Browse class schedule
- Filter classes by type
- Manage class reservations
- Track upcoming classes
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Features: -Purchase Class Packs and Memberships Easily browse and purchase our class packs or membership options. -View our schedule Filter classes by type to find the perfect fit for your routine. -Manage your reservations Book your class reservations with ease. Keep track of your upcoming classes and manage your schedule to stay organized and committed to your fitness goals.
Screenshots
Verdict
The clearest difference is rating: Starcore Studio at 5.0 against G21's 3.7. Starcore Studio also leads on ads (none vs shown) and monetization model (free vs ad-supported). G21's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 16.0). On price, ratings volume, update cadence and in-app purchases 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.
Starcore Studio holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 3 respectively.
G21 ships an update monthly, Starcore Studio fortnightly. The most recent releases landed on September 30, 2026 and October 17, 2026 respectively.
| Parameter | G21 | Starcore Studio |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) | 5.0 (3 ratings) — better |
| Number of ratings | 3 | 3 |
| Update frequency | Monthly | Fortnightly — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 152 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Gravity 21 Fort Lauderdale, LLC | Creatopia Technologies, Inc |
Customer experience
G21
Starcore Studio
In-app purchases
G21
No in-app purchases
Starcore Studio
No in-app purchases
