Comparison

Simple Zones vs Stromno

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

Head to head
About

Simple Zones

Track your workouts in real-time using heart rate zone training. Get instant feedback on your performance to optimize intensity and achieve your fitness goals. Supports Apple Watch and Bluetooth heart rate monitors.

Highlights
  • Real-time heart rate zone visualization
  • Apple Watch and Bluetooth HRM support
  • Customizable zone models
  • Apple Health integration
  • Workout data syncing
  • Activity ring tracking
Features
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SWEAT SMARTER WITH HEART RATE ZONE TRAINING FOR A BETTER, STRONGER YOU! Visualize how hard you’re working with REAL-TIME ZONE TRAINING using your Apple Watch or connected Bluetooth Heart Rate Monitor No matter your workout activity, you can use Zone Training to get instant feedback on your performance and start crushing your fitness goals. With just a quick glance at the eye-catching zones on your phone or wrist during your workout, you’ll know whether you should pump the brakes on the intensity or crank it up a notch. We use your beats per minute (bpm) and percent of max heart rate to show you which zone you’re in, so you can take the guesswork out of your fitness routine and start maximizing your results today. The Zones App has five branded zone models to choose from, inspired by some of your favorite fitness brands: • Peloton* • NordicTrack* (also supports iFit ActivePulse*!) • Echelon • Orange Zones • Heart Health** * Peloton, NordicTrack, ActivePulse, and Echelon are trademarks owned by those respective companies. ** Inspired by the American Heart Association exercise & fitness guidelines for maintaining a Healthy Heart. BENEFITS OF HEART RATE ZONE TRAINING - Reduced Risk of Fatigue & Overtraining - Better, More Restorative Recovery - Maximum Fat Burn and Weight Loss - Increased Speed and Endurance - Enhanced Performance PRIVACY We value your privacy and never share or sell any user information. APPLE HEALTH INTEGRATION - We read Heart Rate from your Apple Watch via Apple Health - We (optionally) save your workout data to Apple Health - All workouts count towards your Apple activity rings - Sync workouts to Strava, TrainingPeaks, or your favorite workout app through Apple Health importing APPLE WATCH REQUIREMENTS The minimum requirement for the Apple Watch is a series 3 or later. BLUETOOTH HEART RATE MONITOR SUPPORT Connect any standard Bluetooth heart rate monitor, armband, or chest strap. Use your OTBeat, Polar, Wahoo, or Garmin HRM. Terms of Service: https://www.workoutcompanions.app/terms-of-use Privacy Policy: https://www.workoutcompanions.app/privacy-policy

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
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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

Simple Zones4 screens

Verdict

The call

The clearest difference is price: Simple Zones at Free against Stromno's $4.99. Simple Zones also leads on rating (4.0 vs 3.1) and update cadence (monthly vs every 3 months). Stromno's advantage is in-app purchases (none vs 2) and iOS requirement (13.0 vs 15.4). On review sentiment, 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

Simple Zones is free to download; Stromno costs $4.99 up front. Simple Zones sells 2 one-off in-app purchases. Stromno asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Simple Zones holds the better App Store score, 4.0 against 3.1. Both are backed by a comparable volume of ratings — 50 and 24 respectively. Written reviews complicate that: 55% of Simple Zones's written reviews are positive against 57% of Stromno's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Simple Zones ships an update monthly, Stromno every 3 months. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

Scorecard6 real differences · 4 level
Simple Zones versus Stromno: the parameters behind the verdict, then further details
ParameterSimple ZonesStromno
PriceFree — better$4.99
Rating4.0 (50 ratings) — better3.1 (24 ratings)
Positive reviews54.8% of reviews57.1% of reviews — better
Number of ratings50 — better24
Update frequencyMonthly — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPod, Apple WatchiPhone, iPod, Apple Watch
Requires iOS15.413.0 — better
Further details — not scored
Size18 MB1 MB
Age rating4+4+
DeveloperBred Ventures IncYaroslav Hryniuk

Customer experience

Simple Zones

All ratings50 ratings
Positive72.0%
Neutral8.0%
Negative20.0%
Written reviews31 reviews
Positive54.8%
Neutral9.7%
Negative35.5%

Stromno

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

In-app purchases

2 purchases

Simple Zones

One-time2
  • Zones Pro$4.99
  • Zones Pro$9.99
None

Stromno

No in-app purchases

Questions

Is Simple Zones free?
Simple Zones 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, Simple Zones or Stromno?
Simple Zones is rated higher. Simple Zones averages 4.0 out of 5 from 50 ratings, while Stromno averages 3.1 from 24 ratings.
Do Simple Zones or Stromno have ads?
Neither Simple Zones nor Stromno shows ads.
Which is updated more often, Simple Zones or Stromno?
Simple Zones ships an update monthly, and Stromno every 3 months. Most recently, Simple Zones was updated on October 24, 2026 and Stromno on October 29, 2026.

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