Comparison

Selfloops Spark vs Pulse Studio HR

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

Pulse Studio HR

Features
Read full description

Pulse Studio supports your gym's group classes. The room TV shows effort in five zones, estimated calories and points. Use the app to get ready for class and review your results. Your gym needs to have Pulse Studio. During class, the heart rate monitor sends your heart rate to the room TV. IN YOUR LANGUAGE Choose Português or English in You → Account settings. Your language follows your account in the app and web dashboard. In the same section, choose light, dark or system appearance. Appearance is saved on your device. FOR MEMBERS • Reserve a heart rate monitor for the week's classes and follow the waitlist. • Check in with the TV's QR code or in the app and enter the monitor number. • Review points, estimated calories, heart rate, time in each zone and your position in each class. Share your results if you wish. • In PULSE Fight, follow rounds and recovery between them. • See your history, ranking and, when enabled by your gym, challenges and achievements. • In Group, post workout photos, like and comment. • Train solo: your phone reads a compatible heart rate monitor over Bluetooth and shows your zone, estimated calories and workout time. • Choose whether your name appears in the ranking. • In My progress, generate your progress report as PDF, Excel or JSON, for 30 days, 3, 6, 12 months or dates you choose, and share it. FOR INSTRUCTORS • Start and finish classes, check members in and add guests without accounts. • Follow the group's heart rate, percentage of maximum heart rate, zone and estimated calories live. • In personal trainer mode, follow up to 2 members on a phone or 4 on a tablet, subject to your network limit. • In Members, review heart rate history and positive answers to the Physical Activity Readiness Questionnaire, PAR-Q. • In Members, open a member's profile, with their photo as the cover and the period's numbers, and export the progress report. Personal trainers export their network's members. FOR GYM MANAGERS • Create your manager account with the code received by email and the number on the TV box label, without health questions. • Follow join requests, monitors with low batteries and TVs without signal. • Manage members, schedules, zones, heart rate monitors and TVs. • Grant QR access with a role and time limit, pair the TV by QR code and check whether it is online. HOW NUMBERS ARE ESTIMATED • Maximum heart rate: the Tanaka formula, 208 − 0.7 × age. If exceeded for at least 10 seconds during class, it is adjusted upwards. • Zones: Z1 from 50% to 60%, Z2 from 60% to 70%, Z3 from 70% to 80%, Z4 from 80% to 90% and Z5 from 90% of your maximum. Below 50% is rest. Your gym can change these ranges. • Calories: the equation by Keytel et al. (2005), using heart rate, sex, weight and age; counted from 50% of maximum heart rate. • Points: time in each zone multiplied by the zone's points. The default per minute is 1 in Z1, 2 in Z2, 3 in Z3 and 4 in Z4 and Z5. Your gym can change these values. • Gym mode: screens show active calories, the energy spent above rest. • The formulas help compare effort between classes; they do not measure your body precisely. PRIVACY • Heart rate and PAR-Q require your consent, which you can revoke in the app. • Only you see your solo workouts; your gym has no access. • The camera scans QR codes and takes profile and Group photos when you choose. QR images are not stored or sent. • Delete your account in You → Data and rights or at https://pulsestudio.app.br/excluir-conta • Workout data is stored in Brazil. For people aged 16 or older. At 16 or 17, registration requires declaring that a legal guardian is aware of app use and heart rate measurement. Pulse Studio is not a medical device. Numbers are estimates for following your training. It does not diagnose, treat, cure or prevent diseases or medical conditions, and does not replace assessment by a health professional. If you have concerns about your health, consult a doctor.

Screenshots

Selfloops Spark4 screens
Pulse Studio HR4 screens

Verdict

The call

The clearest difference is in-app purchases: Pulse Studio HR at none against Selfloops Spark's 1. Pulse Studio HR also leads on update cadence (every 3 days vs every 2 weeks) and iOS requirement (16.4 vs 18.0). On price, 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

Both are free to download. Selfloops Spark sells 1 in-app purchase, starting at $99.99 per year. Pulse Studio HR asks for nothing beyond the download.

UpkeepUpdate frequency

Selfloops Spark ships an update every 2 weeks, Pulse Studio HR every 3 days. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

Scorecard3 real differences · 7 level
Selfloops Spark versus Pulse Studio HR: the parameters behind the verdict, then further details
ParameterSelfloops SparkPulse Studio HR
PriceFreeFree
Rating2.7 (13 ratings) — better—
Positive reviews25.9% of reviews—
Number of ratings13 — better—
Update frequencyEvery 2 weeksEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, Apple WatchiPhone, iPad
Requires iOS18.016.4 — better
Further details — not scored
Size44 MB64 MB
Age rating17+17+
DeveloperSelfLoopsGleidson Fernandes

In-app purchases

1 purchases

Selfloops Spark

Subscriptions1
  • Athlete Premium$99.991 Year
None

Pulse Studio HR

No in-app purchases

Questions

Is Selfloops Spark free?
Selfloops Spark is free to download, with in-app purchases available.
Is Pulse Studio HR free?
Pulse Studio HR is free to download, with no in-app purchases.
Do Selfloops Spark or Pulse Studio HR have ads?
Neither Selfloops Spark nor Pulse Studio HR shows ads.
Which is updated more often, Selfloops Spark or Pulse Studio HR?
Selfloops Spark ships an update every 2 weeks, and Pulse Studio HR every 3 days. Most recently, Selfloops Spark was updated on November 3, 2026 and Pulse Studio HR on November 6, 2026.

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