Friday Scheduling does not offer instalment plans and does not partner with a buy-now-pay-later provider. We are not in the payment flow for services at all, so there is nothing for us to split.
Whether you can spread the cost is up to the studio, and some do offer it — either through their own payment provider, or informally for a large booking like extensions or a colour correction. The way to find out is to ask before you book.
The nearest thing the platform itself offers is a deposit: part now, the balance at the appointment. Some studios also sell prepaid packages, which is paying ahead rather than behind.