# BloodOxygenMonitor vs Time Walk

The clearest difference is in-app purchases: Time Walk at none against BloodOxygenMonitor's 3. Time Walk also leads on iOS requirement (15.0 vs 18.5). On price, ads and device support there is nothing between them.

Both are free to download. BloodOxygenMonitor sells 3 in-app purchases, starting at $0.99 per month. Time Walk asks for nothing beyond the download.

## The numbers

| Metric | BloodOxygenMonitor | Time Walk |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Size | 49 MB | 5 MB |
| Requires iOS | 18.5 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [智敏 焦](https://appshunter.io/developer/1806339985) | [Hong Kong Global Cross-Border E-Commerce Co., Limited](https://appshunter.io/developer/1693750577) |

## What reviewers say

### BloodOxygenMonitor

[App page](https://appshunter.io/ios/app/bloodoxygenmonitor/id6756411122)

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Yearly | $4.99 | per year |
| Lifetime | $9.99 | one-time |


### Time Walk

[App page](https://appshunter.io/ios/app/time-walk-activity-tracker/id6756705576)

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

**In-app purchases:** none


## Frequently asked questions

### Is BloodOxygenMonitor free?

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

### Is Time Walk free?

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

### Do BloodOxygenMonitor or Time Walk have ads?

Neither BloodOxygenMonitor nor Time Walk shows ads.

---

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