Comparison

Selfloops Spark vs Stromno

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

Head to head
About

Selfloops Spark

This app helps athletes and fitness enthusiasts track, analyze, and optimize their workouts. It offers personalized training plans, goal setting, and performance insights. Connect with coaches and other users for motivation and feedback.

Highlights
  • Workout tracking and analysis
  • Fitness challenges and goal setting
  • Personalized training plans
  • Heart rate monitoring
  • RPE logging
  • Data syncing with Apple Health
  • Advanced performance analytics
Features
Read full description

Take Your Sports Performance to the Next Level with SELFLOOPS SELFLOOPS is an advanced fitness and sports performance tracking app for Apple Watch and iPhone, designed for athletes, coaches, and fitness enthusiasts who want deeper insights into their training. Track, Analyze, and Optimize Your Workouts The iPhone app allows you to: - View and analyze your workouts from SELFLOOPS.COM - Join fitness challenges to stay motivated - Set and track weekly fitness goals - Sign up for group fitness classes - Follow personalized training plans created by your coach - Add workout notes and see feedback from your coach - Log your Rate of Perceived Exertion (RPE) to better understand your effort levels The Apple Watch app enables you to: - Use your Apple Watch as a heart rate monitor for SELFLOOPS Group Fitness classes - Track cardio workouts with real-time heart rate data - Monitor workouts on Concept2 rowers, BikeErgs, and SkiErgs - Connect to indoor rowers, treadmills, bikes, and trainers supporting Bluetooth FTMS, Cycling Power, and Speed & Cadence standards Seamless Data Syncing All your workouts automatically sync with Apple Health, Apple Activity, and the SELFLOOPS website, ensuring your training data is always up to date. Unlock Advanced Performance Insights with Athlete Premium Upgrade to Athlete Premium to access powerful sports performance analytics and connect to top third-party platforms, including Garmin, Wahoo Fitness, Polar, Withings, and Concept2. With Athlete Premium, you can also: - Export Apple Health data like sleep, steps, resting heart rate, HRV, and more to SELFLOOPS for deeper analysis - Get access to exclusive tools for elite-level performance tracking Ready to Elevate Your Training? Download SELFLOOPS today and start training smarter! Terms of Service: https://www.selfloops.com/tos.html

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

Screenshots

Selfloops Spark4 screens

Verdict

The call

The clearest difference is price: Selfloops Spark at Free against Stromno's $4.99. Selfloops Spark also leads on update cadence (every 2 weeks vs every 3 months). Stromno's advantage is in-app purchases (none vs 1) and review sentiment (57% vs 26%). On 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

CostPrice · In-app purchases · Ads · Monetization

Selfloops Spark is free to download; Stromno costs $4.99 up front. Selfloops Spark sells 1 in-app purchase, starting at $69.99 per year. Stromno asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Stromno holds the better App Store score, 3.1 against 2.7. Both are backed by a comparable volume of ratings — 13 and 24 respectively. Written reviews point the same way: 26% of Selfloops Spark's written reviews are positive against 57% of Stromno's.

UpkeepUpdate frequency

Selfloops Spark ships an update every 2 weeks, Stromno every 3 months. The most recent releases landed on September 26, 2026 and September 23, 2026 respectively.

Scorecard7 real differences · 3 level
Selfloops Spark versus Stromno: the parameters behind the verdict, then further details
ParameterSelfloops SparkStromno
PriceFree — better$4.99
Rating2.7 (13 ratings)3.1 (24 ratings) — better
Positive reviews25.9% of reviews57.1% of reviews — better
Number of ratings1324 — better
Update frequencyEvery 2 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, Apple WatchiPhone, iPod, Apple Watch — better
Requires iOS18.013.0 — better
Further details — not scored
Size44 MB1 MB
Age rating4+4+
DeveloperSELFLOOPS SNC DI DEL ROSSO CHRISTIAN E RIBICHINI PIEROYaroslav Hryniuk

Customer experience

Selfloops Spark

All ratings13 ratings
Positive30.8%
Neutral7.7%
Negative61.5%
Written reviews27 reviews
Positive25.9%
Neutral7.4%
Negative66.7%

Stromno

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

In-app purchases

1 purchases

Selfloops Spark

Subscriptions1
  • Athlete Premium$69.991 Year
None

Stromno

No in-app purchases

Questions

Is Selfloops Spark free?
Selfloops Spark is free to download, with in-app purchases available.
Is Stromno free?
Stromno costs $4.99, with no in-app purchases.
Which has better reviews, Selfloops Spark or Stromno?
Stromno is rated higher. Selfloops Spark averages 2.7 out of 5 from 13 ratings, while Stromno averages 3.1 from 24 ratings.
Do Selfloops Spark or Stromno have ads?
Neither Selfloops Spark nor Stromno shows ads.
Which is updated more often, Selfloops Spark or Stromno?
Selfloops Spark ships an update every 2 weeks, and Stromno every 3 months. Most recently, Selfloops Spark was updated on September 26, 2026 and Stromno on September 23, 2026.

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