Health Data Server vs Stromno
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Health Data Server
Stream real-time health data from your Apple Watch to your overlay. Display heart rate, calories, and more with customizable animations and sounds. Save workout data to Apple Health.
- Stream heart rate from Apple Watch
- Display calories burned
- Customizable overlay appearance
- Heartbeat animation and sound
- Save workout data to Apple Health
- Access extensive HealthKit data
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The watch app requires watchOS 8+ This app was built to get heart rate, calories, and more from your watch into a stream overlay. It does this by sending the data to HDS Cloud (or an IP address/port you specify). A website hosted at hds.dev can be used as a browser source in OBS to show the data. This app can save workout data to Apple Health Features: - Show your heart rate on stream with just an Apple Watch. No extra heart rate monitors required. - The app will only affect your Activity Rings if calories are enabled - Heart rate color ranges. Know where your heart rate is at a glance. - The overlay app comes with a plethora of customization options. Make your overlay look however you want. - The overlay comes with a heart beat animation that matches your real heart rate - The overlay can also play sounds to go along with the heart beat animation - Even more data for advanced users: - Motion - Every single HKQuantityTypeIdentifier available in HealthKit (so pretty much anything) Go to https://github.com/Rexios80/hds_overlay for information on how to set up the overlay.
Stromno
Broadcast your real-time heart rate from your Apple Watch to live streams on platforms like Twitch and YouTube. Easily set up a customizable widget or overlay for your stream with a simple login code.
- Heart rate streaming from Apple Watch
- Live stream integration (Twitch, YouTube)
- Customizable widget/overlay designs
- Easy 1-minute setup
- OBS, Twitch Studio, XSplit, Streamlabs OBS compatible
- Integrates with Apple Health
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Stromno app allows you easily broadcast your heart rate data from Apple Watch and show it on live stream. Login with a short code and BPM value will be shown in your personal widget/overlay. Stromno was created for live streamers to show real-time heart rate on Twitch, YouTube. It is easy to set up Stromno heart rate widget in 1 minute. You can customize the widget and get a unique URL for OBS(Twitch Studio, XSplit, Streamlabs OBS) on the website. Multiple designs available to fit your stream layout. The App integrates with Apple Health app. Visit stromno.com to create an account, get login code, design your widget/overlay. How to use: - get the Apple Watch app - create an account on stromno.com - get a short login code on the site Dashboard - open the Watch app, login, start streaming - change the widget on the website - copy your heart rate widget URL and use it as a Browser source (in OBS, Twitch Studio, XSplit, Streamlabs OBS) - enjoy more fun and interactivity on your live stream on Twitch or YouTube
Screenshots
Verdict
The clearest difference is rating: Health Data Server at 3.9 against Stromno's 3.1. Health Data Server also leads on update cadence (weekly vs every 3 months) and review sentiment (82% vs 57%). Stromno's advantage is in-app purchases (none vs 6). On price, ratings volume, ads and device support 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
Health Data Server costs $4.99 and Stromno $4.99 up front. Health Data Server sells 6 in-app purchases, starting at $2.99 per month. Stromno asks for nothing beyond the download.
Health Data Server holds the better App Store score, 3.9 against 3.1. Both are backed by a comparable volume of ratings — 41 and 24 respectively. Written reviews point the same way: 82% of Health Data Server's written reviews are positive against 57% of Stromno's.
Health Data Server ships an update weekly, Stromno every 3 months. The most recent releases landed on September 24, 2026 and September 23, 2026 respectively.
| Parameter | Health Data Server | Stromno |
|---|---|---|
| Price | $4.99 | $4.99 |
| Rating | 3.9 (41 ratings) — better | 3.1 (24 ratings) |
| Positive reviews | 81.8% of reviews — better | 57.1% of reviews |
| Number of ratings | 41 — better | 24 |
| Update frequency | Weekly — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPod, Mac, Apple Watch — better | iPhone, iPod, Apple Watch |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 27 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Aaron DeLory | Yaroslav Hryniuk |
Customer experience
Health Data Server
Stromno
In-app purchases
Health Data Server
- HDS Cloud Monthly7 Days trial$2.991 Month
- HDS Cloud Yearly$29.991 Year
- Small Tip$0.99
- Medium Tip$2.99
- Large Tip$4.99
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- Make Up the Difference$49.99
Stromno
No in-app purchases
