This site helps to compare the top 10 programs:
https://www.capterra.com/sem-compare...IKUg&gclsrc=ds
Most use KidKare because it is what the food program requires and seems to be the most affordable. It does have check in/check out, auto-invoicing, autopay, and other accounting features. It does not have parent communication, portfolios or other recommended features for QRIS, though. The other programs will need to be used in addition to KK for those functions.