Where's the Martin?
Trusst runs a stringed-instrument repair shop end to end — intake, approvals, the bench, invoices, card payments, and the numbers underneath it. One place, instead of paper tickets, a text thread, and a spreadsheet.
30 days free · then $34.99/month · no card to start
Example shop. Invented repairs, real screen.
Workbench
9 openMartin D-28
Neck reset · Ana Reyes · due Fri
Guild D-40
Crack repair · Tom Wexler · due Mon
Kay K-162
Rewire + pot replacement · Ruth Alvarez
Gibson J-45
Refret · Priya Nadar · due today
Fender Jazzmaster
Setup + electronics · Dee Okonkwo
Eastman AR371
Fret dress · Marcus Hall · due Thu
Höfner 500/1
Neck pickup rewind · Iris Bhatt · due Tue
Yamaha FG-180
Bridge reglue · Sam Whitfield · due Wed
Collings OM1
Bridge reglue · Sofia Marchetti
What are we charging for this?
Intake is a form your shop built: client, instrument, the fields you actually ask about, photos, and the estimate line by line. It prints or AirPrints on your letterhead with your logo, so the customer leaves holding a real ticket.
Form templates are per-shop. If you always ask about case, finish, and string gauge, the form asks about case, finish, and string gauge.
Intake form · print
Fifth Fret Guitar Repair
412 Bell Street, Nashville TN
| Estimated work | Amount |
|---|---|
| Neck reset | $420.00 |
| Setup after reset | $60.00 |
| Estimate | $480.00 |
Example intake form. Invented client and instrument.
Did she ever approve the neck reset?
You sent photos of the heel and a price. She approved it by email at 9:12 on the 4th, and that is recorded against the repair — who answered, when, and how. Find something else mid-repair and the change order works the same way.
The email carries your shop's name and logo. It does not carry ours.
Estimate sent to customer
Fifth Fret Guitar Repair
412 Bell Street, Nashville TN · (615) 555-0142
Your Martin D-28 — estimate for approval
Hi Ana — the neck angle is past what a saddle adjustment can fix, so the reset is the honest repair. Photos of the heel and the current action are below. Nothing happens until you say so.
Heel and neck joint
Action at the 12th
Bridge and saddle
| Neck reset | $420.00 |
| Setup after reset | $60.00 |
| Total | $480.00 |
Approved by Ana Reyes
Email · 4 Mar, 9:12 AM
Example estimate. Invented customer and prices.
Your customer never downloads anything, and never makes an account.
Every customer touchpoint — status, estimates, change orders, messages, paying the invoice — works from an email link on whatever phone they already have. There is no customer password to reset, because there is no customer password.
Did we get paid for the Gibson?
The invoice is built from the work that was actually approved, numbered in your own sequence, and paid by card straight from the email. The money lands in your account through Stripe — Trusst absorbs the processing fee.
Cash, check, or a card you ran yourself get recorded too. The books should match the shop, not the software.
Invoice 2026-0114
Fifth Fret Guitar Repair
Gibson J-45 · Priya Nadar
| Refret, medium nickel | $520.00 |
| Nut, bone | $85.00 |
| Setup | $60.00 |
| Sales tax | $60.53 |
Example invoice. Invented amounts.
What did we actually make last quarter?
Revenue from paid invoices, expenses you logged with receipt photos, and the net, by whatever period you ask for. Export it to CSV and hand it to whoever does your taxes.
Owner only. A technician signing in at the bench sees the work and never sees this screen — that boundary is enforced in the database, not just hidden in the interface.
Reports · owner only
| Revenue | Amount |
|---|---|
| Paid invoices · 63 | $34,180.00 |
| Expenses | Amount |
|---|---|
| Parts and materials | $6,412.40 |
| Tools | $1,890.00 |
| Rent and utilities | $8,100.00 |
Example report. Invented figures.
Put the shop in one place.
$34.99 /month
Free for 30 days, and we don't ask for a card to start. One price for the shop — owner and technicians included. Cancel whenever; your financial reports export to CSV.