FITTR ONE vs Upio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FITTR ONE
This smart ring and companion app monitor vital health parameters like heart rate, sleep, and SpO2. It provides detailed health data, expert advice, and integrates with a large online fitness community to help users improve their well-being.
- Vital health parameter monitoring
- Detailed fitness metric tracking
- Expert advice for improvement
- Sleep stage analysis
- Heart rate and SpO2 tracking
- Stress and skin temperature monitoring
- Women's health tracking
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Introducing FITTR ONE - a cutting-edge smart ring and app that monitors every vital health parameter and helps you become fitter, healthier and happier. The Hart Ring isn’t just smart and stylish; it’s all you need for tracking every single health parameter. Paired with the app, you get an all-inclusive tool that accurately monitors your key fitness metrics, and gives you timely expert advice on how to improve them. Over time, this means better health and longevity. Powered by FITTR, India’s biggest online fitness community with over 300,000+ success stories and more than 5 million community members globally. **Here’s a glimpse of what FITTR ONE has to offer** Your daily health performance, at a glance Detailed tracking of Steps, Distance, Calories, Sleep, HRV, Skin Temperature, Women’s Health. Includes Quality of Life, Activity, Stress, Heart Rate, SpO2 Health data and reports Expert advice and guidance to help you improve each parameter Sleep Get detailed data like Sleep Duration, Sleep Stages (Awake, REM, Light & Deep Sleep, Naps), Sleep Efficiency, Sleep Latency, Average Heart RAte, Average SpO2, and Average HRV Heart Rate Evaluates your heart health with detailed graphs SpO2 Tracks fluctuations in SpO2 throughout the day and night HRV Tracks variations/fluctuations in your heart rate as you go about your activities Stress Monitors your stress levels and shares tips to reduce stress Skin Temperature Detects changes in skin temperature. Helps you track fluctuations with the help of daily, weekly and monthly reports. Women’s Health (Only visible if gender set as female) Tracks menstrual cycle and helps determine ovulation. For pregnant women, tracks key parameters right up to delivery date. How to correctly wear your FITTR HART Ring For best performance and accurate readings, we recommend wearing your HART Ring on the index finger of your non-dominant hand. Middle and ring fingers work too, if that’s what you prefer. Just make sure that the ring fits securely and comfortably around the base of your finger - not too loose, not too tight. Note: the ring’s sensor should face the palm side of your finger and not the top. How to use the FITTR ONE app After activating the ring, please pair with the FITTR ONE app to start using. Not a medical device This ring is not a medical device and should not be used as a substitute for professional medical judgement. It is not designed or intended for use in the diagnosis of disease or other conditions, or in the cure, mitigation, treatment, or prevention of any condition or disease. Please consult your healthcare professional prior to making any decisions related to your health.
Upio
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Key Features: Smart Reminders - Customizable notification schedule - Flexible time blocks for work and personal hours - Snooze and reschedule with one tap - Dead-response recovery ensures you never miss a reminder Progress Tracking - Visual timeline showing your daily activity - Week and month analytics with comparison charts - Response rate tracking to understand your habits - GitHub-style activity heatmap Gamification - Achievement system with 4 tiers (Bronze, Silver, Gold, Platinum) - Streak tracking to maintain momentum - XP and leveling system - Daily and weekly challenges Exercise Library - Built-in exercises: Squats, Pushups, Lunges, Plank - Create unlimited custom exercises - Choose from hundreds of SF Symbol icons - Track reps or duration Insights & Reports - Daily, weekly, and monthly reports - Exercise breakdown by type - Average response time analytics - Streak milestones and comparisons Flexible Scheduling - Create multiple time blocks throughout the day - Set different schedules for weekdays and weekends - Randomize notification times to prevent habituation - Focus Mode awareness Privacy First All your data stays on your device. No account required, no tracking, no ads. Premium Features - Unlock all achievements and progress tracking - Advanced statistics and insights - Unlimited custom exercises Start building healthier habits today with Upio! Terms of Use (End User License Agreement): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://martin-kieliszek.github.io/upio/en-us.html
Screenshots
Verdict
The clearest difference is in-app purchases: FITTR ONE at none against Upio's 2. Upio's advantage is update cadence (every 3 days vs every 10 days). On price, ads, device support and iOS requirement 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. Upio sells 2 in-app purchases, starting at $1.99 per month. FITTR ONE asks for nothing beyond the download.
FITTR ONE ships an update every 10 days, Upio every 3 days. The most recent releases landed on November 8, 2026 and October 25, 2026 respectively.
| Parameter | FITTR ONE | Upio |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (13 ratings) — better | — |
| Positive reviews | 73.5% of reviews | — |
| Number of ratings | 13 — better | — |
| Update frequency | Every 10 days | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.2 — better | 17.6 |
| Further details — not scored | ||
| Size | 272 MB | 22 MB |
| Age rating | 12+ | 4+ |
| Developer | SQUATS | Martin Kieliszek |
Bugs and requests
FITTR ONE
Reported bugs
10 issues- Activity report generation fails after workouts
- Activity tracking is inaccurate, especially during runs and gym workouts
- App has syncing issues, requires ring to be close to phone
- App randomly logs out
- Charging issues with the ring
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- Battery life drastically reduced after firmware updates
- Sleep tracking not working consistently or accurately
- Login issues
- Report generation fails for activities like Badminton or Weight training
- App shutters and shudders on iPhone 15
Requested features
7 requests- Improve activity tracking accuracy
- Enhance integration with Apple Health
- Option to hide or remove unused app sections (e.g., Nutrition)
- Allow adding activities after they are completed
- Display activities in a list format (e.g., walking - 23 min)
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- More explanation on stress management
- Push notification for low battery (<20%)
Upio
Not enough reviews yet to summarise bugs or requests.
In-app purchases
FITTR ONE
No in-app purchases
Upio
- Premium Monthly7 Days trial$1.991 Month
- Premium Annual7 Days trial$19.991 Year









