Fy Ring vs NAVA Ring
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fy Ring
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◆ A simple and enjoyable application that records daily health data for visual understanding. Utilizing wearable smart rings, it enables effective health management. ◆ The app aims to visualize daily activities and health conditions, encouraging behavioral changes. Manage your daily lifestyle numerically, whether increasing step counts or pursuing better sleep, for a disciplined life and a healthier body. ◆ Key Features: ・Sleep (Duration/Depth) ・Stress ・Heart Rate Variability ・Step/Calories/Distance ・Heart Rate Through this app, gain a deeper understanding of your health and embark on a positive lifestyle transformation. ※ It is important to note that this app is not intended to be a medical device, and the data provided by this app is for general health and wellness purposes only. The app's information is not a substitute for professional medical advice, diagnosis, or treatment.
NAVA Ring
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LIVE YOUR MOMENT WITH NAVA Meet the smart ring that helps you live in sync with your body. NAVA tracks your most important health signals and gives you clear, personal insights to help you feel better, move smarter, and live with intention. 24/7 COMFORT NAVA Ring is lightweight, minimal, and easy to wear anywhere — while you sleep, work out, or relax. Its sleek titanium design is durable, water resistant, and built for daily life. ADVANCED SLEEP MONITORING Every night, NAVA tracks your sleep stages — light, deep, and REM — along with interruptions and duration. You’ll wake up to clear insights and practical tips to improve your sleep quality over time. DAILY READINESS SCORE Each morning, NAVA gives you a Readiness Score that reflects how recovered and balanced your body is — so you know when to push forward and when to rest. STRESS DETECTION & GUIDED RECOVERY NAVA monitors how stress affects your body. When your system shows signs of strain, the app offers calming prompts like breathwork or gentle movement to help you recover and reset. MEAL SCANNING WITH AI Snap a photo of your meal, and NAVA’s AI analyzes how it might impact your recovery, energy, and sleep. Over time, the system learns what works best for your body — and what doesn’t. LIFESYNC™ ROUTINE INTEGRATION Your body doesn’t exist in a vacuum — and neither should your data. LifeSync™ connects your habits, calendar, emotions, and lifestyle to your health patterns, helping you make smarter choices every day. DAILY ACTIVITY & RECOVERY BALANCE NAVA tracks steps, calories, movement, and inactivity to help you stay active — while still honoring your need to rest and recharge. TRENDS THAT MATTER View your personal health trends across days, weeks, and months. NAVA shows you how your behavior, environment, and habits impact your body over time. TAGS FOR HABITS & EVENTS Add tags like "coffee", "alcohol", or "late meal" to better understand how your daily choices influence your sleep, recovery, and energy levels. 1ADVICE CIRCLE Get smarter guidance, every day. NAVA's Advice Circle delivers focused tips based on your current scores in sleep, readiness, stress, and activity. Whether you're looking to improve your energy, optimize recovery, or simply feel more balanced, the Circle gives you simple, science-backed suggestions tailored to your body and routine. COMMUNITY & TEAM FEATURES Join wellness groups, share progress with friends, or track health trends across your team — with complete privacy. NAVA makes wellness a shared experience. Disclaimer: NAVA is not a medical device and is not intended to diagnose, treat, cure, or prevent any medical condition. Please consult a healthcare provider before making changes to your health routine.
Screenshots
Verdict
Fy Ring and NAVA Ring are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Neither carries in-app purchases, so what you see is what you pay.
Fy Ring ships an update fortnightly, NAVA Ring every 3 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | Fy Ring | NAVA Ring |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 77 MB | 153 MB |
| Age rating | 4+ | 4+ |
| Developer | MedVigilance Inc. | NAVA Smart Rings LTD. |
In-app purchases
Fy Ring
No in-app purchases
NAVA Ring
No in-app purchases









