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apps / 6738628390

Heart Rate, Oxygen Monitor Pro

No Subscription, No Ad's

Andy Hollings · Medical · $2.99 · US storefront

rating
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ratings
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updated
Feb 1, 2026

v1.2

released
Jan 23, 2025

visible word pool · 9 words

heartrateoxygenmonitorpronosubscriptionads

title 30/30 chars · subtitle 24/30 chars

App Store search indexes the title and subtitle together with the hidden 100-character keyword field as one combined pool: any phrase assembled from those words can rank. These are the words of Heart Rate, Oxygen Monitor Pro's pool that are public — the keyword field is not exposed by any API.

from the listing

First Responder is a heart rate and oxygen (SpO2) monitoring app for Apple Watch. It provides real-time monitoring of heart rate and oxygen saturation on one screen without sharing, tracking, or saving any personal data. The app is designed to prioritize user privacy, allowing it to be used on different users' devices without affecting personal health data. Key features include: Real-time heart rate and oxygen monitoring. No data tracking, saving, or sharing of any kind.…

full listing on the App Store ↗

Where does it rank? Chart position is one signal — most installs come from keyword search. Check where Heart Rate, Oxygen Monitor Pro ranks for any keyword, free, with the rank checker.

this page is one tool call

mcp · app
{
  "tool": "app",
  "arguments": {
    "appId": 6738628390,
    "countries": [
      "US"
    ],
    "subtitle": true
  }
}

The app tool returns this listing as stable JSON for any storefront — one of thirteen ASO tools your agent gets over MCP. Get a free key.

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