# Withings vs OxyKnight

The clearest difference is rating: Withings at 4.6 against OxyKnight's 4.0. Withings also leads on ratings volume (369K vs 12) and chart position (#72 vs unranked). OxyKnight's advantage is in-app purchases (none vs 3) and review sentiment (50% vs 24%). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Withings sells 3 in-app purchases, starting at $9.99 per month. OxyKnight asks for nothing beyond the download.

Withings holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: Withings has 369K ratings behind it against 12, so its average is the more settled of the two. Written reviews complicate that: 24% of Withings's written reviews are positive against 50% of OxyKnight's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 28, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Withings | OxyKnight |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (369K ratings)](https://appshunter.io/ios/app/withings/id542701020/reviews)** | [4.0 (12 ratings)](https://appshunter.io/ios/app/oxyknight/id1631825159/reviews) |
| Number of ratings | **369K** | 12 |
| Positive reviews | 24.2% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#72** | — |
| Size | 461 MB | 48 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Withings](https://appshunter.io/developer/298933045) | [CMI Health Inc.](https://appshunter.io/developer/1054521049) |

## What reviewers say

### Withings

[App page](https://appshunter.io/ios/app/withings/id542701020)

**Currently charting:** #72 Top Grossing · Health & Fitness (US App Store)

This app serves as a central hub for managing your health, consolidating data from various devices and apps. It provides insights, educational content, and tools to track progress towards goals like weight loss, activity, and sleep. Share your health data securely with your doctor for informed medical decisions.

**Highlights:** Unified health data from devices and apps, Weight and body composition monitoring, Activity and sleep tracking, Blood pressure and cardiovascular health, Personalized health insights and coaching, Family health profiles, Doctor-shareable health reports

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Withings+ Monthly offer | $9.99 | per month |
| Withings+ Annual offer | $99.99 | per year |
| ECGs Cardiologist Review | $59.99 | one-time |

**What reviewers like**

- ⭐ Excellent app and product integration
- 📊 Comprehensive health tracking
- 🔋 Good battery life on devices
- 🤝 Helpful customer support

**What reviewers complain about**

- 🐛 Connectivity and syncing issues
- 📈 Confusing or cluttered UI
- 🔍 Lack of customization options
- 💰 Expensive for some features

**Reported bugs**

- Inconsistent weight data reporting
- App crashes or freezes on launch
- Inaccurate body composition measurements
- Unreliable blood pressure readings

**Requested features**

- Improved sleep tracking and reporting
- More granular data visualization
- Ability to manually edit or delete measurements
- Better integration with third-party apps


### OxyKnight

[App page](https://appshunter.io/ios/app/oxyknight/id1631825159)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Withings free?

Withings is free to download, with in-app purchases available.

### Is OxyKnight free?

OxyKnight is free to download, with no in-app purchases.

### Which has better reviews, Withings or OxyKnight?

Withings is rated higher. Withings averages 4.6 out of 5 from 369K ratings, while OxyKnight averages 4.0 from 12 ratings.

### Do Withings or OxyKnight have ads?

Neither Withings nor OxyKnight shows ads.

### Which is updated more often, Withings or OxyKnight?

Withings ships an update fortnightly, and OxyKnight fortnightly. Most recently, Withings was updated on October 28, 2026 and OxyKnight on October 22, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*