F3 /// Fit Flex Fly vs SPENGA 2.0
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
F3 /// Fit Flex Fly
Plan and schedule fitness classes directly from your mobile device. View class schedules, sign up for sessions, and access studio location details. Optimize your fitness routine with convenient scheduling.
- View class schedules
- Sign up for classes
- Access studio location
- Schedule from your device
- Optimize fitness time
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Download the F3 Fit Flex Fly 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!
SPENGA 2.0
Easily plan and schedule fitness classes directly from your mobile device. View class schedules, sign up for sessions, and access studio location and contact details. Optimize your fitness routine with convenient scheduling.
- View class schedules
- Sign up for classes
- Access studio location
- Contact studio information
- Mobile class planning
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Plan and Schedule your classes with us from your Mobile device. Download the SPENGA 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 and contact information. Optimize your time and maximize the convenience of signing up for classes from your device! Download this App today!
Screenshots
Verdict
The clearest difference is ratings volume: SPENGA 2.0 at 13K against F3 /// Fit Flex Fly's 1. SPENGA 2.0 also leads on monetization model (free vs ad-supported). F3 /// Fit Flex Fly's advantage is update cadence (every 3 weeks vs every 5 weeks). On price, rating, ads 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.
On the App Store both sit at effectively the same score — 5.0 for F3 /// Fit Flex Fly against 5.0 for SPENGA 2.0. That said, the two scores are not equally well evidenced: SPENGA 2.0 has 13K ratings behind it against 1, so its average is the more settled of the two.
F3 /// Fit Flex Fly ships an update every 3 weeks, SPENGA 2.0 every 5 weeks. The most recent releases landed on October 8, 2026 and October 28, 2026 respectively.
| Parameter | F3 /// Fit Flex Fly | SPENGA 2.0 |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 5.0 (13K ratings) |
| Positive reviews | — | 84.2% of reviews |
| Number of ratings | 1 | 13K — better |
| Update frequency | Every 3 weeks — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 192 MB | 72 MB |
| Age rating | 4+ | 4+ |
| Developer | Real Fitness Indy LLC dba F3 Fit Flex Fly | Geisler Young |
Customer experience
F3 /// Fit Flex Fly
SPENGA 2.0
Bugs and requests
F3 /// Fit Flex Fly
Not enough reviews yet to summarise bugs or requests.
SPENGA 2.0
Reported bugs
3 issues- Spin stats not accurately tracked
- App crashes and data sync issues
- Waitlist notifications not working
Requested features
3 requests- Ability to choose a specific bike
- Display class ranking and performance metrics
- Workout descriptions and targeting details
In-app purchases
F3 /// Fit Flex Fly
No in-app purchases
SPENGA 2.0
No in-app purchases
Questions
Is F3 /// Fit Flex Fly free?
Is SPENGA 2.0 free?
Which has better reviews, F3 /// Fit Flex Fly or SPENGA 2.0?
Do F3 /// Fit Flex Fly or SPENGA 2.0 have ads?
Which is updated more often, F3 /// Fit Flex Fly or SPENGA 2.0?
Other comparisons
