POS System for small business / Client schedular

[Reggie Rearden]

I have two different questions:

(1) I'm looking for a new POS system for my income tax / bookkeeping business. I know this is a real estate page but hopefully other entrepreneurs can point me in the proper direction. We currently use Square for our POS. We are open year round but majority of income is made seasonally so we want something that makes the most sense for our business. 

(2) My wife is self employed at the salon we own. What options are there for clients to schedule themselves appointments? She usually spends from 8pm until 10pm responding back to all of the texts and calls she misses throughout the day since she is doing manicures and can not answer her phone. She still uses a paperback appointment book but we're wanting to transition everything to where clients can schedule themselves which will free her up about 10 hours a week in the evenings.