SelfLoops HRV vs TopSpin360
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SelfLoops HRV
This app measures and analyzes heart rate variability (HRV) using Bluetooth heart rate monitors. It helps users track recovery, stress, and training readiness to optimize performance. Advanced metrics are provided for sports science and research applications.
- Accurate HRV measurement
- Daily recovery & readiness tracking
- Clear trend monitoring
- Intuitive interface
- Bluetooth heart rate monitor compatible
- Sports science metrics
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SELFLOOPS HRV – Recovery, Readiness & Performance SELFLOOPS HRV is a professional-grade app to measure and analyze heart rate variability (HRV)—trusted by pro athletes, coaches, and researchers to track recovery, stress, fatigue, and training readiness. Using precise beat-to-beat (R-R interval) data from Bluetooth heart rate monitors, SELFLOOPS delivers highly accurate HRV insights used in sports science and performance optimization. Why track HRV? Heart Rate Variability (HRV) measures the variation between heartbeats and is one of the most reliable indicators of: 1. Recovery status 2. Training readiness 3. Stress and fatigue 4. Nervous system balance 5. Long-term performance Track your HRV daily to understand when to push harder or recover, reduce the risk of overtraining, and improve performance over time. Advanced HRV Analysis SELFLOOPS HRV provides the key metrics used in elite sports and scientific research: 1. RMSSD 2. ln(RMSSD) (HRV Score) 3. SDNN 4. pNN50 5. AVNN Key Features 1. Accurate HRV measurement from beat-to-beat data 2. Daily recovery & readiness tracking 3. Clear trends to monitor progress over time 4. Fast, simple, and intuitive interface 5. Compatible with leading Bluetooth heart rate monitors 6. Used in endurance, strength training, cycling, running, and fitness Device Compatibility Requires a Bluetooth Low Energy (BLE) heart rate monitor. For best accuracy, use a chest strap that supports R-R interval data. Not all heart rate monitors provide this data. Connection Tips If your sensor does not connect: 1. Make sure it is not connected to another app or device 2. Do not pair it directly in iOS Settings Disclaimer SELFLOOPS HRV is not a medical app and does not provide medical advice. Consult a qualified healthcare professional for any health-related decisions.
TopSpin360
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TopSpin360 is the companion app for your TopSpin Technologies TopSpin360 helmet. Connect to your helmet using Bluetooth to see your live RFD, and track your training.
Screenshots
Verdict
The clearest difference is in-app purchases: TopSpin360 at none against SelfLoops HRV's 1. TopSpin360 also leads on iOS requirement (15.0 vs 18.0). SelfLoops HRV's advantage is update cadence (every 4 months vs every 11 months). 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
Both are free to download. SelfLoops HRV sells 1 one-off in-app purchase. TopSpin360 asks for nothing beyond the download.
SelfLoops HRV ships an update every 4 months, TopSpin360 every 11 months. The most recent releases landed on June 5, 2026 and September 5, 2026 respectively.
| Parameter | SelfLoops HRV | TopSpin360 |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 4 months — better | Every 11 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 86 MB |
| Age rating | 4+ | 4+ |
| Developer | SELFLOOPS SNC DI DEL ROSSO CHRISTIAN E RIBICHINI PIERO | TopSpin Technologies |
In-app purchases
SelfLoops HRV
- HRV premium$3.99
TopSpin360
No in-app purchases





