---
title: "SPO2er: Blood Oxygen on Watch — App Overview"
url: https://marlvel.ai/apps/com-xcitationsoftware-spo2er
category: Health & Fitness
developer: Kevin Edwards
platforms: ios
rating: 4.8 (6 ratings)
pricing: paid
report_level: overview
generated: 2026-04-24
last_verified: "2026-04-24T09:06:07.962Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** SPO2er is a privacy-centric, local-only tool designed to simplify the visualization of existing Apple Health blood oxygen data.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Health & Fitness |
| Rating | 4.8 ★ (6) |
| Pricing | paid |
| Platforms | iOS |
| Latest Version (iOS) | 1.2 |
| Developer | Kevin Edwards |

<!-- SECTION: Summary -->
## What is SPO2er: Blood Oxygen on Watch?

SPO2er is a health utility that visualizes blood oxygen data sourced directly from Apple HealthKit. It provides users with immediate access to current readings, 24-hour trends, and historical data across both iPhone and Apple Watch platforms. The app distinguishes itself by operating entirely on-device with no external data sharing or account requirements.

<!-- SECTION: Key Features -->
## Key Features

- **Latest Blood Oxygen Reading**: Displays the most recent SPO₂ measurement with a precise timestamp.
- **24-Hour Trend Graph**: Provides a visual sparkline of SPO₂ fluctuations alongside high, low, and average value metrics.
- **Detailed History**: Offers a chronological, timestamped list of all SPO₂ samples recorded over the previous 24 hours.
- **Apple Watch Complications**: Supports multiple watch face complications for at-a-glance access to the latest blood oxygen data.

<!-- SECTION: Target Audience -->
## Who is it for?

Apple Watch users seeking a streamlined, privacy-focused interface to monitor their blood oxygen trends.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/spo2er-blood-oxygen-on-watch/id6755498703?uo=2)
- [Full Intelligence Report](https://marlvel.ai/apps/com-xcitationsoftware-spo2er)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/com-xcitationsoftware-spo2er).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*