RHRSpark

RHRSpark

Your resting heart rate. Raw. Beautiful. On your wrist.

0upvotes
Launched April 26, 2026

About RHRSpark

RHRSpark is a minimalist yet powerful app designed for Apple Watch users interested in monitoring their resting heart rate (RHR) with transparency and simplicity. Unlike many health apps that offer scores and interpretations, RHRSpark focuses solely on providing raw data — sedentary HR and Apple's daily RHR — directly on your watch face as live sparkline complications. With ten customizable watch face complications, it offers a glanceable, clutter-free way to track your heart health without distractions or unnecessary metrics. Developed by the creator of HRVSpark, RHRSpark appeals to health enthusiasts, quantified selfers, and anyone seeking unfiltered, real-time heart rate data in a sleek, straightforward format. Its one-time purchase of $2.99 for the Pro unlock makes it an accessible option for those who want reliable, no-subscription health insights on their wrist. The app’s focus on raw data and visual simplicity sets it apart in the crowded fitness tracking space, emphasizing data transparency over interpretation.

Screenshots

RHRSpark screenshot 1
RHRSpark screenshot 2
RHRSpark screenshot 3

Pros

  • Provides raw, unfiltered resting heart rate data with live complications on Apple Watch
  • No subscription required; one-time $2.99 purchase for Pro unlock
  • Highly customizable watch face complications (up to 10)
  • Simple, clean design prioritizing data transparency
  • Developed by the creator of HRVSpark, ensuring reliability and expertise

Cons

  • No scores, analysis, or health insights — may be limited for casual users seeking interpretation
  • Focuses solely on resting heart rate; lacks broader health metrics
  • Requires Apple Watch; not available for other wearables

Use Cases

1Monitoring resting heart rate trends over time for fitness or health insights
2Tracking daily sedentary HR as part of a quantified self routine
3Using live complications for quick, at-a-glance heart rate monitoring during workouts or daily activities
4Identifying potential health issues by observing changes in resting HR
5Complementing other fitness apps that provide broader health metrics with raw data

Pricing

RHRSpark operates on a simple, one-time purchase model costing $2.99 for the Pro unlock, with no ongoing subscription fees. Basic features are likely included in the free version, but the Pro unlock enhances customization and data access.

Quick Info

Upvotes0
Comments1
Launched4/26/2026

Topics

Apple WatchHealth & FitnessQuantified Self

Alternatives

HeartWatch
Zones for Training
Qardio Heart Health
Oura App (for Oura Ring users)
Apple Health app (native, with third-party integrations)

Embed Badge

Add this badge to your website to show that RHRSpark is featured on Visalytica.

<a href="https://www.visalytica.com/tool/rhrspark" target="_blank" rel="noopener noreferrer" style="display:inline-flex;align-items:center;gap:6px;padding:6px 14px;background:#7c3aed;color:#fff;border-radius:8px;font-family:-apple-system,system-ui,sans-serif;font-size:13px;font-weight:600;text-decoration:none;transition:background .2s" onmouseover="this.style.background='#6d28d9'" onmouseout="this.style.background='#7c3aed'"><svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><path d="M12 20V10"/><path d="M18 20V4"/><path d="M6 20v-4"/></svg>Featured on Visalytica</a>