Misleading – Flutter | Baby Heartbeat Monitor - Doppler Baby's Fetal Heart Beats in Pregnancy Free Obstetric Stethoscope or Ultrasound when Pregnant Review

If you're going to make a "free" app for listening to baby's heartbeat and then charge $1.99 to unlock the ability to do so after downloading, it's not actually a free app.
Review by Hebobeebler on Flutter | Baby Heartbeat Monitor - Doppler Baby's Fetal Heart Beats in Pregnancy Free Obstetric Stethoscope or Ultrasound when Pregnant.