Heart rate all over the place

Not every time but often enough the heart rate is all over the place. 0-180 in a second and anywhere in between. The app is only ok as it is. The watches have more functionality which is disappointing since your phone has so much more memory, processing power and available display area.

Update: I hate this app. The heart rate is EXTREMELY unreliable. I maintain the strap and sensor correctly. Ive washed the strap as instructed - nothing more, nothing less. The sensor has a new battery. The signal will not only completely drop out but the HR spikes as well. Do not buy the HR monitor nor the app. On to Garmin.

UPDATE 2: The H7 strap is actually compatible with the Wahoo app and I still get bad, inaccurate heart rates. So bottom line, the only compatible strap for Beat is unusable so the app is unusable.

POd CA about Polar Beat: Running & Fitness, v2.2.2