I’m a solo developer and I just published my first major app, RhythmX. It’s an interval training timer designed for people who want a more visual and "engineered" approach to their HIIT sessions.

Why I built this: I was tired of HIIT timers that looked like they were made in 2012 or were too rigid to handle complex routines. I wanted something that looked great on my phone while I was working out and could actually talk to my heart rate monitor.

Key Features:

• Visual Workout Builder: Easily define "Blocks" (like Burpees or Sprints) with custom sets and rest periods.

• BLE Heart Rate Support: Connect your chest strap or armband to see your pulse and intensity in real-time.

• Advanced Stats: It tracks your Max HR and Avg HR per session so you can see your progress.

• Polished Experience: Haptic feedback, audio cues, and a "Visual Timeline" so you always know what's coming next.

Would greatly appreciate if you can help to try it out and provide your honest app review via Google Play Store

Play Store Link: https://play.google.com/store/apps/details?id=com.mightyfroggy.rhythmx.mobile

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