Two different definitions of the problem
GlossGenius answers a question a lot of independent beauty pros ask: can one app carry the business so I stop paying for four. That is a real question, and for a stylist who also sells retail, runs promotions and wants everything under one login, a broad platform is a sensible answer.
ShearHold answers a smaller and sharper question. A rented chair sells time in blocks, and a full highlight with a toner and a blow-dry is three or four of those blocks. When that block empties at short notice it does not refill, because nobody walks in on a Tuesday wanting four hours of color. So the product exists to make sure the block is paid for either way.
How each shape feels on a busy Saturday
On a stacked color Saturday you are not opening software. You are checking a processing timer, mixing the next bowl and watching the door for a client who is fifteen minutes late. Anything that needs a decision from you in that moment does not get one.
That is why ShearHold pushes every decision to the moment of booking. The notice window, the deposit amount and the fee are agreed to when the appointment is made, so a late cancel resolves against a rule you wrote weeks ago. A broader platform can be configured to behave the same way, and if you go that route, set it up on a quiet Monday rather than discovering the settings mid shift.
What to test before you commit
Book a fake appointment on both, cancel it inside your notice window, and watch exactly what the client sees and what you have to do. That five minute test tells you more than any feature list, because the difference between tools here is almost entirely about how much of the work falls back on you.
Then test the growth path. If you plan to add a second stylist to your suite in a year, check what changes: whether policies stay per chair, who owns the client records, and what happens to deposits taken before the change. Ask both vendors directly and keep the answers in writing.