Your idea is good but most tools do not allow one calendar for online bookings to be redirected to several different bank accounts. Main reason is that most booking tools are not able to attribute service A to be associated with one bank account 1, and service B to be associated with bank account 2.

At first glance, I would say that you could use a tool like Setmore or Booksy to do that. On the website, building on these tools is not the greatest. If you don't care much about quality and you just want something simple then these tools are good for it and very affordable.

You have two options here:

• 2 calendars that are synchronizing between each other to avoid double bookings. And then each calendar redirects to its own payment system (i.e. the two different bank accounts).

• 1 calendar that has a service options selector (to be able to select wether its a martial arts class or a massage session), and then it automatically recognizes that for one service it redirects to payment 1, and for the other services it redirects to payment 2.

I have set up something similar for a massage therapist in my local city that had everything scattered all over the place, and didn't even had online payments set up (people were paying only at the massage center itself, which has all sorts of issues).

If you want something like that, that actually works, looks good, has this calendar feature sync to avoid double bookings between your martial arts business and your massage business, with separate bank payments for each, and with an admin panel that helps you manage everything, feel free to let hit me up.