Selfloops Spark vs SPINPower® Crank Connect
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
SPINPower® Crank Connect
This application connects to a specific type of fitness crank to calibrate it, update its firmware, and manage its settings. It displays essential information like serial number, battery level, and ANT+ ID for each connected device.
- Crank calibration
- Firmware updates
- Device naming
- Serial number display
- Battery level monitoring
- ANT+ ID display
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The SPINPower® Crank Connect app allows you to calibrate the SPINPower® Studio crank and SPINPower® Performance crank as well as update firmware. Every individual crank in a club can be named for easy maintenance referencing. The app will display the serial number, name, ANT+ ID and the battery level of the crank. 1. Calibrates the crank 2. Updates the firmware on the crank 3. Allows the user to name the crank 4. Shows the serial number, name and ANT+ ID of the crank 5. Shows the battery level of the crank
Screenshots
Verdict
The clearest difference is in-app purchases: SPINPower® Crank Connect at none against Selfloops Spark's 1. SPINPower® Crank Connect also leads on review sentiment (57% vs 26%). Selfloops Spark's advantage is update cadence (every 2 weeks vs every 3 months). On price, rating, ratings volume and ads 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
Both are free to download. Selfloops Spark sells 1 in-app purchase, starting at $99.99 per year. SPINPower® Crank Connect asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 2.7 for Selfloops Spark against 2.7 for SPINPower® Crank Connect. Both are backed by a comparable volume of ratings — 13 and 12 respectively. Written reviews are what separate them: 26% of Selfloops Spark's written reviews are positive against 57% of SPINPower® Crank Connect's.
Selfloops Spark ships an update every 2 weeks, SPINPower® Crank Connect every 3 months. Both last shipped on October 24, 2026.
| Parameter | Selfloops Spark | SPINPower® Crank Connect |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (13 ratings) — better | 2.7 (12 ratings) |
| Positive reviews | 25.9% of reviews | 57.1% of reviews — better |
| Number of ratings | 13 — better | 12 |
| Update frequency | Every 2 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Requires iOS | 18.0 | 17.6 — better |
| Further details — not scored | ||
| Size | 44 MB | 10 MB |
| Age rating | 17+ | 4+ |
| Developer | SelfLoops | Mad Dogg Athletics, Inc. |
Customer experience
Selfloops Spark
SPINPower® Crank Connect
In-app purchases
Selfloops Spark
- Athlete Premium$99.991 Year
SPINPower® Crank Connect
No in-app purchases
Questions
Is Selfloops Spark free?
Is SPINPower® Crank Connect free?
Which has better reviews, Selfloops Spark or SPINPower® Crank Connect?
Do Selfloops Spark or SPINPower® Crank Connect have ads?
Which is updated more often, Selfloops Spark or SPINPower® Crank Connect?
Other comparisons
