Free: Runtastic Heart Rate Pro (Was $1.99) @ Google Play

Found another free App .. Ratings 4.5/5
Enjoy.

PRO FEATURES:

• Unlimited measurements: Determine your heart rate anytime, anywhere & as often as you like
• Use filters: Filter your measurements according to type (resting HR, pre-& post-workout HR, maximum HR)
• Graphs to monitor your progress: Monitor how your resting heart rate develops
• Reminder: Receive automatic notifications for regular HR measurements
• No ads

APP FEATURES & BENEFITS:

• Measure your heart rate with your smartphone camera
• Graphs illustrate your measurements
• Different measuring types: resting HR, pre- & post-workout HR, maximum HR
• Upload your results to Runtastic.com, compare and analyze your measurements by day, week or year
• Share your HR measurements in social networks like Facebook, Google+ & Twitter or via email

WARNING: This is not a medical product.