Studio Companion Watch App vs The Function Lab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Studio Companion Watch App
Enhance your F45 workouts with real-time heart rate sync and workout summaries directly on your Apple Watch. Track calories, duration, and progress seamlessly with Apple Health integration.
- Live heart rate sync to LionHeart
- Real-time zones, points, and heart rate
- Logs calories, duration, and workout summaries
- Apple Health integration
- Workout tracking without extra straps
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Boost your F45 Workouts with the Studio Companion Watch App! Download now and enjoy the comfort and convenience of your Apple Watch for all your F45 Workouts! Key Features • Live heart rate sync to LionHeart displays • Real-time zones, points, and heart rate on your Apple Watch • Logs calories, duration, and workout summaries to Apple Health • Links with F45 Training App (not all features available for Apple Watch users) Why F45 Members Love It • Simple: Use your Apple Watch for workout tracking, no uncomfortable straps or armbands! • Accurate: Precise heart rate and zone tracking • Complete: 360° progress with LionHeart Apple Health Integration • Workouts from the Studio Companion Watch App are saved to Apple Health • Workouts from the Watch App contribute to filling your daily activity rings! Requirements • Apple Watch Series 3+ • A Studio Hub device is required for in-studio connectivity to LionHeart User Support • For outstanding user support for the Studio Hub and the Studio Companion Watch App, contact the Studio Hub team directly at support@studiohub.app. • Please do not contact F45 Training support for Studio Hub or Apple Watch App support questions. Bred Ventures Inc Bred Ventures Inc. makes the Studio Hub and Studio Companion Watch App. We operate independently from F45 Training, and our company and products are not officially endorsed by F45 Training. Visit studiohub.app for more information. Terms: https://www.workoutcompanions.app/terms-of-use Privacy: https://www.workoutcompanions.app/privacy-policy References to F45 Training, the F45 Training App, and LionHeart are used with permission from F45 Training.
The Function Lab
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The The Function Lab app is designed for clients of trainers who have enrolled in the The Function Lab program. The app will send push notifications and prompt clients to answer yes/no question in regards to comply with healthy habits sent by your coach. WHO CAN USE THE APP Clients can only use the app if they are working with a The Function Lab coach. If you are a The Function Lab client, please contact your coach to receive your invite and login credentials to be able to use this app. The The Function Lab app allows access to HealthKit, allowing clients to automatically pull in their activity and steps data from Apple Health to their app.
Screenshots
Verdict
Studio Companion Watch App and The Function Lab 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.
Studio Companion Watch App ships an update every 9 days, The Function Lab fortnightly. The most recent releases landed on October 13, 2026 and October 1, 2026 respectively.
| Parameter | Studio Companion Watch App | The Function Lab |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (7 ratings) — better | — |
| Positive reviews | 42.1% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 9 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 48 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | F45 Training | The Function Lab LLC |
In-app purchases
Studio Companion Watch App
No in-app purchases
The Function Lab
No in-app purchases
Questions
Is Studio Companion Watch App free?
Is The Function Lab free?
Do Studio Companion Watch App or The Function Lab have ads?
Which is updated more often, Studio Companion Watch App or The Function Lab?
Other comparisons
