Speed Mod Calc is a companion app for arcade rhythm and dance games. Use Speed Mod Calc to quickly calculate speed modifiers and track your workout.

Features:
- Speed modifier calculator: Calculate the correct speed modifier based on your reading speed.
- Heart rate: Track your heart rate with an Apple Watch.
- Calories: See how many calories you have burned.
- Heart rate zones: Know which heart rate zone you're in based on your maximum heart rate.

If you would like to report an issue or request a feature for the app, feel free to contact the App Support email.