OxyKnight vs Super Oxygen
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OxyKnight
This app works with compatible smart oximeter devices to monitor and record overnight pulse oximetry. It provides detailed sleep reports with SpO2 and PR trends, customizable alarms, and spot-checking capabilities for oxygen saturation and respiration rate.
- Overnight HRPO monitoring
- Sleep reports with SpO2/PR trends
- Customizable SpO2/PR alarms
- Spot Check SpO2, PR, Respiration Rate
- Bluetooth device connection
- Shareable sleep data
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The updated OxyKnight® App is now compatible with multiple CMI Health smart oximeters including the OxyKnight® Watch, the OxyKnight® Watch Lite, and the OxyKnight® Finger. The OxyKnight® Watch and Watch Lite are perfect for anyone who snores, who feels not fully rested after sleep, has sleep disorders or oxygen issues, or people who may need to be monitored during sleep. They are very comfortable to wear and operate continuously throughout the night. It’s made with a soft, flexible fingertip cup and adjustable wrist strap for simple use. Just 1 tap within the App to connect the Watch with the OxyKnight® App via Bluetooth. The OxyKnight® Finger is a clinical-grade smart fingertip oximeter designed for home use, sports, and aviation. Check your oxygen saturation anytime, anywhere, and sync results effortlessly with the OxyKnight® App. FEATURES (Need the compatible and designated OxyKnight® device for the specific functionality) - Monitors and records HRPO (High-Resolution Pulse Oximetry) overnight - Sleep report includes SpO2 and PR trend graph, and a series of statistics. Easy to share with family members or doctors. - Trend data for sleep quality, SpO2, and PR - Customizable SpO2 and PR alarms - Spot Check SpO2, PR, and Respiration Rate Disclaimer: Please always seek a doctor’s advice before making any medical decisions.
Super Oxygen
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Note: To use the app, only our designated pulse oximeters are supported. Super Oxygen provides a variety of services, including real-time measurement of your vital signs, data recording and sharing, viewing device instructions, etc. You can explore the app as a guest to try its features, but your data will not be saved. Once you log in, the app will automatically search for and connect to your oximeter device. What you can do with this app: 1. View SpO₂, PR, PI, and RR in real time. 2. View Beat-by-Beat Pulse Rhythm graph for each recording. 3. View easy to read graphs, tables and trends by day, week, last 7 days, month and year. 4. Each recording displays the Low point, High point and Average for the recording. 5. View or delete records. 6. Share your measurement reports. 7. Sync with Apple Health to save all your data. 8. Access device instructions, etc. Disclaimer: The app is only for general wellness, sports and aviation to maintain or encourage a general state of health and healthy lifestyle. Not to be used for any diagnostic or medical purposes. It is designed only for data transmission and recording from the hardware device and does not provide any medical advice or support.
Screenshots
Verdict
OxyKnight and Super Oxygen 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.
OxyKnight ships an update fortnightly, Super Oxygen monthly. The most recent releases landed on July 5, 2026 and September 11, 2026 respectively.
| Parameter | OxyKnight | Super Oxygen |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (8 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Fortnightly — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 48 MB | 20 MB |
| Age rating | 4+ | 17+ |
| Developer | CMI Health Inc. | choicemmed |
In-app purchases
OxyKnight
No in-app purchases
Super Oxygen
No in-app purchases









