Radoff vs FitSight
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Radoff
This app monitors indoor air quality, detecting pollutants like radon, CO2, and VOCs. It provides real-time data, historical trends, and smart notifications to help you create a healthier living environment. Easily understand complex readings and receive actionable tips for improvement.
- Comprehensive indoor monitoring
- Real-time data access
- Historical data and graphs
- Smart notifications and alerts
- Easy-to-interpret readings
- Smart Home Integration
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Have you ever wondered what you're actually breathing indoors? Find out with Radoff. Indoor pollution is one of the biggest health challenges. We're well aware of the risks of smog and fine particulate matter outdoors, but we often overlook the fact that indoor air can be even more polluted. We spend most of our time indoors, where air quality can be up to 10 times worse than outdoors. Pollutants are invisible and imperceptible, but they can affect your daily well-being. Radoff lets you see what you can't see: it monitors the air quality in your spaces and transforms complex data into simple, useful information to help you live better and protect your health every day. Key Features - Quick and easy setup Activate the device in just a few steps. - Comprehensive indoor monitoring Monitor key parameters: air quality (AQI), radon (Rn), CO₂, VOCs, fine particulate matter (PM1, PM2.5, PM10), temperature, humidity, and pressure. - Real-time data, wherever you are Access environmental readings remotely. - Historical data and dynamic graphs Analyze air quality trends over time. - Smart notifications Receive alerts when conditions change and practical tips for improving the air quality in your home. - Clear, easy-to-interpret readings Understand the data instantly and maintain optimal conditions. - Smart Home Integration Compatible with Alexa via the "Radoff Assistant" skill. Breathe better, live better Radoff helps you create healthier, safer environments for you and the people you love.
FitSight
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Train Smarter with Professional-Grade Sports Science Insights Powered by your Apple Watch, FitSight transforms your Health data into a powerful sports analytics platform. Understand your training intensity, track fitness adaptation, and optimise recovery using evidence-based physiological principles. Sports Science Powered Analytics Your training intelligence is built on legitimate sports physiology: * Autonomic nervous system monitoring via HRV for precise recovery status * Evidence-based training load management using ACWR methodology to prevent injury * Sleep quality integration that recognises hormonal recovery critical for adaptation * Cardiovascular adaptation tracking through heart rate recovery analysis * Individual baselining that adapts to your unique physiology over time This isn't just fitness tracking—it's the same applied sports science principles used by elite coaches and athletes, now accessible for your training. Key Features: • Intelligent Recovery Scoring: Daily readiness scores combining HRV, sleep, heart rate recovery and training load with our bespoke weighted algorithm • Heart Rate Zone Analysis: Advanced intensity tracking where time in higher zones contributes more to physiological strain scoring • Training Load Management: ACWR-based weekly strain monitoring to perfectly balance effort and recovery • Recovery Pattern Detection: Identifies overtraining, detraining and optimal training states automatically • HealthKit Integration: Seamlessly sync data from Apple Watch, Strava, Nike and other fitness apps • Long-Term Trends: Track your fitness evolution with clear, scientifically-grounded metrics • Actionable Daily Insights: Personalised guidance answering "How hard should I train today?" based on your current physiological state WHOOP-level sports science made accessible—HRV recovery scores, sleep impact analysis and injury prevention through validated ACWR protocols, all optimised for iPhone Who It's For: Designed for athletes, coaches, and anyone who trains with purpose. Whether you're running, cycling, or gym training, FitSight helps you make informed decisions to avoid overtraining and maximise results using professional-grade sports science. Your data remains private and secure. FitSight processes your information on-device and only accesses data you explicitly grant permission to. Download FitSight today and experience the difference between guessing and knowing—turn your health data into professional training intelligence. This app requires a paid subscription to access its features. A free trial is available. Subscriptions are purchased through Apple's in-app purchase system. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Radoff at none against FitSight's 3. Radoff also leads on iOS requirement (15.6 vs 26.0). On price, update cadence, 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. FitSight sells 3 in-app purchases, starting at $4.99 per month. Radoff asks for nothing beyond the download.
Radoff ships an update every 5 weeks, FitSight every 3 weeks. The most recent releases landed on September 9, 2026 and September 25, 2026 respectively.
| Parameter | Radoff | FitSight |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | — |
| Positive reviews | 81.8% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 73 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Radoff S.p.A. | RAJA RAHEES TAHIR |
In-app purchases
Radoff
No in-app purchases
FitSight
- Monthly Subscription$4.991 Month
- Yearly Subscription7 Days trial$29.991 Year
- Lifetime Subscription$79.99









