Comparison
Square Appointments suits a lash artist who wants a straightforward calendar sitting next to her card reader, while LashRetention suits the artist who needs to know which clients are sliding out of their fill cycle before they go quiet.
Square Appointments is general purpose booking attached to a payments company, and for a lash artist who wants a plain calendar and a reader in the same account, that is a reasonable base. It does not think in shed cycles, because it is not built for one trade. LashRetention scores each lash client on how her extensions are holding, surfaces the ones sliding toward week six, and sends aftercare on a lash timeline. Many artists run both quite happily. Keep the calendar and checkout where they are, add retention beside them.
| What you are deciding | LashRetention | Square Appointments |
|---|---|---|
| Category of tool | A retention tool for lash and brow studios, with no calendar and no checkout of its own. | General appointment booking from a payments company, used across many kinds of small business. |
| Vertical assumptions | Assumes full sets, fills, lifts, tints and brow work, and that the fill interval is the metric that matters. | Deliberately general, so nothing in it assumes a natural lash growth cycle. |
| Client record | Holds mapping, adhesive, room conditions, shed pattern, retention score and the interval history. | Holds the client and her appointment history in a form that suits any service business. |
| Rebooking | Prompts at the chair and by message on the due date calculated from her own cycle, not a fixed rule. | Approaches follow up as general appointment reminders rather than cycle driven rebooking. |
| Aftercare | Timed messages about the first 24 hours, cleansing, oil free makeup and gym exposure. | Messaging is generic to any appointment, so lash aftercare content is yours to write and time. |
| Payments | None. Keep your existing reader, including theirs, and we never touch a ticket. | Payments are the center of gravity of the wider product family, which is its main draw. |
| Running both together | Designed for it. Book and take payment there, track the cycle here. | Works fine as the calendar and checkout half of that pair. |
| Price shape | Solo Artist $25, Studio $59, Studio Team $119 per month, with no processing cut. | Check their current published pricing and processing terms at the source before you compare. |
On the right is the kind of tool Square Appointments is and the job it is shaped around, rather than a list of what it includes at any given price. Any product moves on, so confirm the live details on their own pages first. LashRetention is published by MLJ, SASU and this page is written by Jimenez Julien.
Booking software solves scarcity of time. It makes sure two clients are not in the same chair and that the client knows when to arrive. That problem is real and general purpose tools solve it well, which is why so many lash artists are perfectly happy with a plain calendar attached to their reader.
Retention solves a different scarcity: the natural lash. Extensions live on a hair that sheds on its own schedule, and the window where a fill is still a fill and not a near full set is roughly two to three weeks wide for most clients. Miss that window and the same client costs you twice the chair time for the same price. No calendar notices that happening, because a calendar only knows about the appointments that exist, not the ones that should have been booked.
The common setup is simple. The client books and pays through the calendar she already knows. At the end of the appointment you log the retention entry here, in under a minute, while she is still settling up: how many extensions were still attached, where the fallout sat, what adhesive and room conditions you had. The next due date comes out of that, and the rebook prompt goes out on it.
Nothing duplicates except the client name. We do not take a cut of any ticket, we do not need her card, and we do not write to your calendar. The only discipline the setup asks for is that retention entry at the end of each appointment, which is the same 40 seconds most artists already spend writing a note in their phone.
If you are new, working part time out of a rented room, or carrying fewer than about 25 regular clients, one system is genuinely enough. At that volume you can hold every client's cycle in your head and a spreadsheet, and the honest advice is to keep your money and revisit this when the book fills.
The moment to add retention tracking is when you can no longer name, from memory, the clients who are drifting. For most solo artists that lands somewhere between 40 and 60 active clients, when the book is busy enough to look healthy while quietly stretching from three weeks to five.
No, because it does not create, move or cancel appointments anywhere. It keeps its own record of the fill cycle and tells you who is due. The booking still happens wherever your clients already book.
Yes, and it is the one habit the tool needs. The entry takes under a minute at the end of service: extensions still attached, where the fallout sat, adhesive and room conditions. Without it the retention score has nothing to read and the due dates fall back to a flat interval.
Yes. Export your clients as a spreadsheet and import them, then start scoring from the next appointment forward. Historical appointment dates come across too, so you can see each client's past interval from the first week.
Comparison
GlossGenius is built for an independent beauty professional who wants booking, checkout and client marketing in one place, while LashRetention is built for the artist whose calendar already works but whose fill interval keeps slipping.
Comparison
Vagaro suits a studio with several service categories, staff to schedule and a front desk to run, while LashRetention suits the artist whose only real problem is that fills keep landing in week six.
A head to head is easier to judge with both products open. Book twenty minutes and we will walk one of your real lash clients through a whole cycle, from the map at the first set to the retention count at the fill. If the other product turns out to suit your studio better, we will tell you that on the call.