Salon computer systems

Hi

I'm looking at becoming computerised in the salon. There's 3 of us and I'm wanting to send text reminders and give clients the option to book online.

Iv got a meeting set up with I-salon but after having a look through older posts appt of people as saying they are quite expensive (I got quoted £75pm) with a long term contract.

I'm seeing a lot of people saying salon light. Is anyone able to give me any further info or current monthly prices?

Thanks
Lauren