This app was mentioned in 2 comments, with an average of 1.00 upvote
Over 500,000 downloads yet the reviews are horrible 🤷🏻♂️
https://play.google.com/store/apps/details?id=com.alivecor.aliveecg
Works great for me.
https://play.google.com/store/apps/details?id=com.alivecor.aliveecg