As per my long experience with My Best Studio, It is a perfect software solutions for any size of studio.
More information, best solutions with features at – http://www.mybeststudio.com
Check out Glofox.com
Glofox is a gym-studio management software combined with a mobile app solution.
Your members can check-in at the front desk through an in-app barcode and scanner, reducing the need for front desk staff. All attendances are automatically recorded in the Glofox Dashboard.
Could be exactly what you’re looking for!