# Blood Oxygen Level vs QuickOxyLog

The clearest difference is update cadence: QuickOxyLog at every 5 days against Blood Oxygen Level's every 5 weeks. Blood Oxygen Level's advantage is device support (4 vs 2) and iOS requirement (15.0 vs 26.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Blood Oxygen Level sells 1 in-app purchase, starting at $9.99 per month and QuickOxyLog sells 1 in-app purchase, starting at $19.99 per year. Whichever you choose, the download price is not the number that matters.

Blood Oxygen Level ships an update every 5 weeks, QuickOxyLog every 5 days. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Blood Oxygen Level | QuickOxyLog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (193 ratings)](https://appshunter.io/ios/app/blood-oxygen-level-analyzer/id1595757329/reviews)** | — |
| Number of ratings | **193** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 5 days** |
| Monetization | Subscription | — |
| Size | 24 MB | 3 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Svetlana Rabosh](https://appshunter.io/developer/1614133369) | [SLB OPERATIONS LTD](https://appshunter.io/developer/1895873901) |

## What reviewers say

### Blood Oxygen Level

[App page](https://appshunter.io/ios/app/blood-oxygen-level-analyzer/id1595757329)

Track your blood oxygen saturation levels and monitor changes over time. Log additional symptoms to gain a more comprehensive understanding of your condition. Supports multiple user profiles and synchronizes with HealthKit for pulse and oxygen data.

**Highlights:** Oxygen saturation tracking, Symptom logging, History of changes, Multiple user profiles, HealthKit synchronization

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Blood Oxygen Monitor One Month | $9.99 | per month |


### QuickOxyLog

[App page](https://appshunter.io/ios/app/quickoxylog/id6778489886)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| QuickOxyLog Premium | $19.99 | per year |


## Frequently asked questions

### Is Blood Oxygen Level free?

Blood Oxygen Level is free to download, with in-app purchases available.

### Is QuickOxyLog free?

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

### Do Blood Oxygen Level or QuickOxyLog have ads?

Neither Blood Oxygen Level nor QuickOxyLog shows ads.

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

Blood Oxygen Level ships an update every 5 weeks, and QuickOxyLog every 5 days. Most recently, Blood Oxygen Level was updated on October 27, 2026 and QuickOxyLog on October 24, 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.*