Comparison

Stromno vs CadioWatch

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

About

CadioWatch

Monitor your heart rate and blood oxygen levels with this companion app for Apple Watch. Easily share your health data charts with doctors, trainers, or family. View your historical health metrics with an intuitive interface.

Highlights
  • Heart rate monitoring
  • Oxygen saturation tracking
  • Data sharing via QR code
  • Historical health data viewing
  • Intuitive app design
Features
Read full description

Introducing CardioWatch for Apple Watch - the ultimate heart health companion! With our advanced heart rate and oxygen saturation monitoring technology, you can now track your beats per minute and oxygen level, and easily share your data with others. Simply scan the QR code generated by the app to share your heart rate and oxygen saturation chart with your doctor, personal trainer, or loved ones. Our intuitive app design also makes it easy to view your heart rate and oxygen saturation history. Download CardioWatch today and take control of your heart and lung health!

Screenshots

CadioWatch3 screens

Verdict

The call

The clearest difference is price: CadioWatch at Free against Stromno's $4.99. CadioWatch also leads on review sentiment (100% vs 57%) and rating (5.0 vs 3.1). Stromno's advantage is ratings volume (24 vs 4) and iOS requirement (13.0 vs 16.0). On ads, in-app purchases, monetization model 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

CostPrice · In-app purchases · Ads · Monetization

CadioWatch is free to download; Stromno costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

CadioWatch holds the better App Store score, 5.0 against 3.1. That said, the two scores are not equally well evidenced: Stromno has 24 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 57% of Stromno's written reviews are positive against 100% of CadioWatch's.

UpkeepUpdate frequency

Stromno ships an update every 3 months, CadioWatch every 5 days. The most recent releases landed on September 23, 2026 and June 8, 2026 respectively.

Scorecard6 real differences · 4 level
Stromno versus CadioWatch: the parameters behind the verdict, then further details
ParameterStromnoCadioWatch
Price$4.99Free — better
Rating3.1 (24 ratings)5.0 (4 ratings) — better
Positive reviews57.1% of reviews100.0% of reviews — better
Number of ratings24 — better4
Update frequencyEvery 3 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPod, Apple WatchiPhone, iPad, Apple Watch
Requires iOS13.0 — better16.0
Further details — not scored
Size1 MB8 MB
Age rating4+4+
DeveloperYaroslav HryniukOAXON INC.

Customer experience

Stromno

All ratings24 ratings
Positive54.2%
Neutral0.0%
Negative45.8%
Written reviews28 reviews
Positive57.1%
Neutral0.0%
Negative42.9%

CadioWatch

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Stromno

No in-app purchases

None

CadioWatch

No in-app purchases

Questions

Is Stromno free?
Stromno costs $4.99, with no in-app purchases.
Is CadioWatch free?
CadioWatch is free to download, with no in-app purchases.
Which has better reviews, Stromno or CadioWatch?
CadioWatch is rated higher. Stromno averages 3.1 out of 5 from 24 ratings, while CadioWatch averages 5.0 from 4 ratings.
Do Stromno or CadioWatch have ads?
Neither Stromno nor CadioWatch shows ads.
Which is updated more often, Stromno or CadioWatch?
Stromno ships an update every 3 months, and CadioWatch every 5 days. Most recently, Stromno was updated on September 23, 2026 and CadioWatch on June 8, 2026.

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