The stretched cycle
A client on a three week cycle books seventeen times a year. The same client at seven weeks books seven times. Nothing about her changed except that nobody reached out at the right moment.
Roughly $780 per client, per yearFill cycle software for lash and brow studios
Put your regulars back in the chair on week three, not week seven
LashRetention watches the fill cycle of every client on your book and tells you who is drifting before the set is too far gone to fill. Rebooking prompts and aftercare go out on their own, in your words, on the schedule that matches the client's own cycle.
612 US lash and brow studios on the platform
Set up in one afternoon between clients
Encrypted client records on SOC 2 aligned hosting
The quiet leak
You are not losing clients. You are losing their calendar slot.
Almost nobody tells you they are leaving. They stretch two weeks into four, four into seven, then they show up with eight lashes left and ask for a fill you have to charge as a full set. The chair sat empty in between, and that hour was never coming back.
Fills that become full sets
Under forty percent retention you are rebuilding, not filling, and you priced it as a fill. Two of those a week eats a whole afternoon of paid work.
Two hours of unbilled time each weekThe rebook you forgot to ask for
You meant to rebook her at the desk. She was on the phone, you were cleaning the bed, and the moment passed. The average studio lets one in four clients walk out unbooked.
One empty slot per working dayAftercare nobody remembers
You said it out loud while she paid: no steam for a day, cleanser every night, no oil based makeup remover. By Wednesday it is gone and the retention complaint comes back to you.
Three to five redo appointments a monthHow it works
Four steps, and the cycle runs itself
You already know the trade. LashRetention just keeps the count for you, one client at a time, and speaks up on the day it matters.
Log the set at the bed
At the end of the appointment you tap in the style, the curl and diameter, the map, the adhesive and the retention you saw on arrival. It takes about twenty seconds and it builds the client's history from the first visit.
The fill window is calculated per client
Natural shed rate, humidity, how often she is in the gym, her makeup habits and her last three arrival retentions all move her window. One client is a fourteen day fill and another is a twenty four day fill, and the software stops treating them the same.
Prompts and aftercare go out on their own
Aftercare lands two hours after she leaves and again on day three. The rebooking prompt fires four days before her window closes, written in your voice, with your booking link attached.
You work the at risk list, not the whole book
Every morning you get a short list: who slipped past her window, who cancelled twice, who has not answered two prompts. Usually it is five names, and one text each brings most of them back.
What is inside
Built around the fill cycle, not around a generic calendar
Six things the studio owners who use this every day asked for by name.
Per client fill cycle tracking
Each client carries her own cycle length, drawn from her real arrival retention rather than a studio wide average. When her lashes start holding longer or shorter, the window moves with her.
Retention score on every record
A score from one to one hundred combines arrival retention, cycle drift, cancellation history and prompt response. Anything under sixty lands on your morning list before the client disappears.
Rebooking prompts in your voice
Write the message once and it goes out by text or email four days before each window closes, with the booking link and the exact appointment length she needs. Replies land in one inbox you can clear between clients.
Aftercare that arrives twice
The first message goes out two hours after she leaves, while the adhesive is still curing, and the second on day three when the habits actually form. Both are editable per service, so a lash lift set does not get extension advice.
Set history and mapping notes
Curl, diameter, fan size, adhesive lot and the map you used are stored per visit with a photo if you take one. When retention drops across several clients you can see whether it followed a new adhesive lot or a humidity swing.
Chair value reporting
See revenue per chair hour, rebook rate by artist and the annual value of each client at her current cycle. It is the number you need when you decide whether to raise your fill price or add a second bed.
What changes
Numbers from studios in their first six months
Measured across 612 US studios between January and August 2026, comparing the ninety days before onboarding with the ninety days after.
21.4
Average days between visits
Down from 34.7. The prompt arrives while the set is still fillable, so she books a fill instead of waiting until she needs a full set and puts it off again.
78%
Clients rebooked before leaving
Up from 54%. The record shows her next window while she is still at the desk, so the rebook question has a date attached instead of a vague invitation to text you.
$1,140
Added revenue per chair, per month
Four recovered slots a week at a median fill price of $72, plus the fills that stayed fills instead of being rebuilt at a loss.
63%
Fewer retention complaints
Aftercare that arrives twice, in writing, cuts the oil and steam mistakes that cause most first week shedding. Fewer redo appointments, fewer awkward conversations at the desk.
From the bed
Studio owners who stopped guessing at the gap
"I had thirty regulars who I thought were loyal. The score told me eleven of them had quietly slid to six weeks. I sent eleven texts on a Tuesday and got nine of them back on the book within ten days. Nothing else in my business moved that fast."
"The part that sold me was the per client window. My gym clients hold two weeks and my office clients hold four, and I used to text everybody at twenty one days like an idiot. Now the software knows the difference and my fill prices finally hold up."
"We run four beds and I could never tell whether a bad week was the adhesive or the artist. Logging the lot number per set answered it in three weeks. It was humidity in the back room, not my newest girl, and I nearly had that conversation with her."
612US lash and brow studios running fill cycles here
194,800Rebooking prompts sent in the last twelve months
41%Median lift in visits per client, per year
Pricing
One bed or four, priced the way studios actually grow
Every plan carries unlimited clients, unlimited fill cycle records and unlimited aftercare messages. You are billed monthly and you can cancel at any time.
Solo Artist
$25 per month
- One artist, one chair
- Per client fill cycle tracking and retention scoring
- Automatic rebooking prompts by text and email
- Two stage aftercare per service type
- Set history with curl, diameter, map and adhesive lot
- Daily at risk client list
Studio
$59 per month
- Up to three artists and three chairs
- Everything in Solo Artist
- Chair value and revenue per hour reporting
- Adhesive lot and humidity retention analysis
- Shared client records across the team
- Client photo history with consent capture
- Custom prompt copy per artist
Studio Team
$119 per month
- Up to ten artists across two locations
- Everything in Studio
- Per artist rebook rate and retention benchmarks
- Front desk view with the day's at risk list
- Apprentice review queue for set records
- Exportable payroll ready service reports
- Onboarding session with your whole team
All prices are in US dollars and billed monthly. There is no annual contract, no setup fee and no charge per client record. Cancel at any time from your account settings and your data stays exportable for thirty days afterwards.
Questions
What studio owners ask before they start
No. The plan is priced by artists and chairs, never by the number of clients or messages. A solo artist with 40 regulars and a solo artist with 400 both pay $25 per month. You only move up a tier when you add an artist to the floor, and you can change tier yourself at any time without talking to anyone.
Most solo artists are live in an afternoon. You import your client list from a spreadsheet or a CSV export from your booking system, set your default fill window and paste in your own prompt and aftercare wording. The retention scores start out neutral and become accurate after two logged visits per client, so the first useful at risk list usually appears in week five.
Only you and the artists you invite to your account. Records are encrypted in transit and at rest on SOC 2 aligned hosting in the United States, and we never sell, rent or share client data with advertisers or data brokers. Client photos are stored only when you take them and can be deleted per client at any time. If you leave, you export everything as CSV and we delete your account data within thirty days.
No, and most studios keep the one they have. LashRetention sits alongside your calendar and reads a daily appointment export, so Vagaro, Square Appointments, GlossGenius, Acuity and Boulevard all work today. Your rebooking prompts carry your existing booking link, so the client books where she always has. If your system is not on the list, a CSV import keeps everything in step.
You cancel from your account settings in two clicks and the plan stops at the end of the month you have already paid for. There is no exit fee, no notice period and nobody calls to talk you out of it. Your full client history stays downloadable as CSV for thirty days after the account closes, and we delete it after that.
They are capped at one rebooking prompt per cycle, and a client who books stops receiving that cycle's prompt immediately. Every message carries a one word opt out, and opting out of prompts never stops her aftercare. Across 194,800 prompts sent in the last twelve months the opt out rate sits at 1.7%, well below the rate studios see on general marketing blasts, because the message arrives when she was already thinking about her lashes.
Inside a client record
Everything you would have written on an index card, kept in order
The record is the point of the whole thing. It is short enough to fill in while you strip your gloves off, and complete enough to answer the questions that come up eight visits later.
The set
Style, curl, diameter, fan size, the map, the adhesive and its lot number, plus the time the appointment actually took rather than the time it was booked for.
The cycle
Days since her last visit, arrival retention as a percentage, her calculated fill window and how far she has drifted from it over her last five appointments.
The habits
Gym days per week, whether she sleeps face down, oil based products she has admitted to and any allergy or sensitivity you have flagged. These are the fields that explain a stubborn outer corner.
The conversation
Which prompts she received, which she opened, what she replied and when she booked. You never send a second nudge to someone who already answered the first.
The money
Every service and price on her history, her annual value at the current cycle and what that value becomes if she moves back inside her window.
The consent
Photo permission, message permission and the date each was given, stored with the record so you are never guessing whether you can post a before and after.
5
Names on a typical morning list
Small enough to work through with a coffee before your first client, which is the only reason it gets worked through at all.
20s
To log a finished set
Six taps on a phone at the bed. If the record took longer than the cleanup, nobody in a real studio would ever fill it in.
2
Visits before scoring is accurate
The first appointment sets a baseline and the second measures real arrival retention, which is when her window stops being a guess.
Works with your calendar
The booking system stays where it is
A daily appointment export from Vagaro, Square Appointments, GlossGenius, Acuity or Boulevard keeps your client list in step, and your existing booking link is the one that goes out in every prompt. Nothing about the way clients book has to change on the day you start.
Built by the trade
Field names come from the bed, not from a product meeting
Every field on the record was requested by a working artist, and anything that stopped being used inside three months was taken back out. That is why there is a lot number field and no field for a client's favorite color.
Fill Cycle, our magazine for lash and brow artists
Read Fill Cycle for the retention math behind a full book
Retention, craft and studio economics for lash and brow artists who run their own books in the United States.
Talk to us
Tell us what your book looks like and we will show you the gap in it
A demo takes twenty five minutes and we run it on your numbers, not on a fake studio. Bring your average fill price and a rough count of your regulars and you will leave knowing what a three week cycle would be worth to you.
We answer every request within one business day, Monday to Friday, US hours. If you would rather write, the address below reaches the same inbox.
Prefer email? Write to jimenezjulien42@gmail.com and we will reply with the same detail.
No card, no contract and no sales sequence. One reply from a person, within one business day.