# Oxi tracker vs Blood Oxygen Level

The clearest difference is rating: Blood Oxygen Level at 4.3 against Oxi tracker's 2.2. Blood Oxygen Level also leads on update cadence (every 6 weeks vs every 6 months) and ratings volume (2K vs 62). Oxi tracker's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Blood Oxygen Level holds the better App Store score, 4.3 against 2.2. That said, the two scores are not equally well evidenced: Blood Oxygen Level has 2K ratings behind it against 62, so its average is the more settled of the two. Written reviews point the same way: 13% of Oxi tracker's written reviews are positive against 23% of Blood Oxygen Level's.

Oxi tracker ships an update every 6 months, Blood Oxygen Level every 6 weeks. The most recent releases landed on October 18, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Oxi tracker | Blood Oxygen Level |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.2 (62 ratings)](https://appshunter.io/ios/app/oxi-tracker/id1064769834/reviews) | **[4.3 (2K ratings)](https://appshunter.io/ios/app/blood-oxygen-level/id1582509614/reviews)** |
| Number of ratings | 62 | **2K** |
| Positive reviews | 12.5% of reviews | **22.5% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 6 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 28 MB | 38 MB |
| Requires iOS | **8.0** | 15 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Guangdong Biolight Meditech Co., Ltd.](https://appshunter.io/developer/888975473) | [Enrique Villahermosa Juara](https://appshunter.io/developer/1581153213) |

## What reviewers say

### Oxi tracker

[App page](https://appshunter.io/ios/app/oxi-tracker/id1064769834)

Monitor blood oxygen levels, pulse rate, and perfusion index in real-time. View waveform and trend charts, ideal for daily health maintenance and sleep analysis.

**Highlights:** Real-time blood oxygen waveform, SpO2, PR, PI monitoring, Trend charts, Bluetooth connectivity, Sleep state analysis

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Device works standalone
- 👍 Basic data recording

**What reviewers complain about**

- 🐛 App doesn't connect
- 🐛 Registration fails
- 🐛 No account creation
- 🐛 Bluetooth issues
- 🐛 Outdated software

**Reported bugs**

- App no longer allows recording
- Device doesn't connect with iPhone
- Cannot register account
- App does not connect to device
- Error code when trying to register

**Requested features**

- Export data for analysis
- Integrate with Apple HealthKit
- Background data logging
- Keep pleth reading
- Alarm setting on app


### Blood Oxygen Level

[App page](https://appshunter.io/ios/app/blood-oxygen-level/id1582509614)

Easily record your daily pulse and blood oxygen levels. Track your health statistics over time with simple data entry and clear visualizations. Requires an external device like a pulse oximeter or smartwatch for measurements.

**Highlights:** Record pulse measurements, Record blood oxygen levels, Daily measurement tracking, View statistics over time, Simple data entry

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and easy interface
- 🚀 Impressive work
- 💡 Helpful for recording health conditions

**What reviewers complain about**

- 🐛 Doesn't record anything
- 🐛 Flickering and freezing issues
- 🔋 Ads make it unusable
- 🐛 Doesn't give accurate readings
- 🐛 Doesn't sync with devices

**Reported bugs**

- Doesn't record or track oxygen levels accurately
- Compatibility issues with newer devices
- Unexpected charges and sign-ups to other services

**Requested features**

- Add a notes section for each entry
- Improve instructions on using the app
- Provide an ad-free subscription option


## Frequently asked questions

### Is Oxi tracker free?

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

### Is Blood Oxygen Level free?

Blood Oxygen Level is free to download, with no in-app purchases.

### Which has better reviews, Oxi tracker or Blood Oxygen Level?

Blood Oxygen Level is rated higher. Oxi tracker averages 2.2 out of 5 from 62 ratings, while Blood Oxygen Level averages 4.3 from 2K ratings.

### Do Oxi tracker or Blood Oxygen Level have ads?

Blood Oxygen Level shows ads; Oxi tracker does not.

### Which is updated more often, Oxi tracker or Blood Oxygen Level?

Oxi tracker ships an update every 6 months, and Blood Oxygen Level every 6 weeks. Most recently, Oxi tracker was updated on October 18, 2026 and Blood Oxygen Level on October 30, 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.*