iNAP Lab+ vs CIRCUL RING
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iNAP Lab+
This app monitors information from compatible oximeter and therapy devices. It requires specific hardware and is intended for users in regions where the devices have regulatory clearance. Always consult a doctor for medical decisions.
- Oximeter monitoring
- Therapy device information
- Compatible device support
- Regulatory clearance confirmation
- Health data tracking
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Before you use this App, the compatible devices are below. iNAP One device has received regulatory clearance or license in the USA, EU, Taiwan, Thailand, Hong Kong, Malaysia, Singapore, and Australia. The first compatible Oximeter (Model: TD-8255) has received regulatory clearance or license in the USA, EU, Taiwan, and Japan. The second compatible Oximeter (Model: PC-68B) has received regulatory clearance in the USA. The newly compatible oximeters are OMNI Ring (MegaRing) and O2Ring. If you are NOT in these countries, you need to confirm the availability when using these devices and this App based on local regulations in your country. Users could use the app to monitor oximeter and therapy device information. Please seek a doctor’s advice in addition to using this app and before making any medical decisions.
CIRCUL RING
This app tracks your sleep quality, daily activity, and key health indicators. It provides personalized insights and trends to help you understand and adjust your physical state. Professional sports data recording is also included.
- Sleep monitoring (heart rate, stages, temperature)
- Daily activity tracking (heart rate, steps, calories)
- Health indicator trend analysis
- Professional sports data recording
- Personalized health tips
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1. Monitor various body indicators during sleep, CIRCUL RING will monitor heart rate, sleep stage, night body temperature and other indicators in real time when you sleep, you can easily know the sleep status of each night, and provide personalized tips to help you adjust your physical state; 2. Monitor daily activity data around the clock, record your daily heart rate, steps, calories, exercise time, etc., and provide personalized prompts; 3. A quick overview of the changes in health indicators, rising or falling over time, and the trend of daily, weekly, and monthly changes at a glance; 4. Professional sports details record, including heart rate, step count and other detailed data, data charts, etc. *Disclaimer: This app is not a medical app, and all health-related data, results, recommendations, etc. are for reference only, not for medical purposes. The ring product connected to the application is not a medical device and cannot provide any medical services, if you feel unwell, please consult a medical institution in time.
Screenshots
Verdict
The clearest difference is update cadence: CIRCUL RING at every 3 weeks against iNAP Lab+'s every 4 months. CIRCUL RING also leads on ratings volume (34 vs 9) and iOS requirement (13.0 vs 15.0). On price, rating, review sentiment 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. Neither carries in-app purchases, so what you see is what you pay.
CIRCUL RING holds the better App Store score, 2.3 against 2.1. Both are backed by a comparable volume of ratings — 9 and 34 respectively. Written reviews complicate that: 17% of iNAP Lab+'s written reviews are positive against 13% of CIRCUL RING's, so the app with the better star average is not the one people write more warmly about.
iNAP Lab+ ships an update every 4 months, CIRCUL RING every 3 weeks. The most recent releases landed on September 20, 2026 and September 21, 2026 respectively.
| Parameter | iNAP Lab+ | CIRCUL RING |
|---|---|---|
| Price | Free | Free |
| Rating | 2.1 (9 ratings) | 2.3 (34 ratings) — better |
| Positive reviews | 16.7% of reviews — better | 13.3% of reviews |
| Number of ratings | 9 | 34 — better |
| Update frequency | Every 4 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 65 MB | 106 MB |
| Age rating | 4+ | 17+ |
| Developer | Somnics, Inc. | BodiMetrics, LLC |
Customer experience
iNAP Lab+
CIRCUL RING
In-app purchases
iNAP Lab+
No in-app purchases
CIRCUL RING
No in-app purchases









