Redline
Beta · invite only

Get paid without
chasing.

Redline sends the invoice, watches the inbox, and follows up for you. Friendly first, firmer later. You just see who paid.

R
Rei is watching 14 open invoices for you. Next nudge goes out in 2h.
Fewer awkward follow-ups
Automated escalation
One-tap payment links
Auto late fees
Cashflow at a glance
HOW IT WORKS

Three steps. No chasing.

You do the work. Redline handles the awkward part — getting paid for it.

01step 01

Send it once.

Build an invoice in 30 seconds. Redline drops a payment link into the email and the thread tracks itself.

to: ops@harborstudio.co
Here's the invoice for Phase 2. Link below pays in one tap.
pay.redline.app/inv-0247
02step 02

Let Rei handle the follow-up.

Your operator starts at 7 days overdue, escalates at 14, applies your late-fee rule at 21, and sends final notice at 30.

Invoice sent
Day 0
Friendly reminder
7d overdue
Direct reminder
14d overdue
Late-fee notice
21d overdue
Final notice
30d overdue
Marked paid
—
03step 03

See what's moving.

One dashboard. Overdue in red, paid in warm white, what's queued to send next in plain language.

THIS WEEK$14,820
M
T
W
T
F
S
S
THE SEQUENCE

Friendly first. Firmer later.

Redline's default escalation is calibrated on hundreds of real invoice threads. You can override any step, pause the sequence with one tap, or write your own voice.

Tone control
Pick how you want to sound — warm, neutral, or strictly business. Per client or global.
Pause anytime
Client asked for time? Pause the thread for X days with a single click. No awkward manual emails.
Late fees, your way
Set a flat fee or %. Redline applies and notifies exactly per your terms.
R
Default sequence
auto
Invoice sent
Day 0
Payment link delivered. Read at 09:12.
Friendly reminder
7d overdue
"Quick heads up — here's the payment link again."
Direct reminder
14d overdue
"This one is still open. Can you settle today?"
Late-fee notice
21d overdue
Fee applied per your settings. Client notified.
Final notice
30d overdue
Final collection notice sent with payment link.
Marked paid
—
Thanks sent. Thread archived.
PRICING

One late-paying client covers it.

Solo
Freeforever
For your first clients.
  • Up to 3 open invoices
  • Redline follow-up sequence
  • Payment links
MOST POPULAR
Pro
$18/ month
For the people paying themselves.
  • Unlimited invoices
  • Custom tones + pause
  • Auto late fees
  • Cashflow view
  • Priority nudges
Studio
$42/ month
For small teams with clients.
  • Everything in Pro
  • 3 operators
  • Shared client book
  • CSV + Xero export
FAQ

Things people ask before signing up.

They shouldn't. Emails go from your address, your voice, your signature. Redline just picks the timing and the tone.
Yes — one click. Pause for days or indefinitely. Resume any time.
Redline detects the payment, updates the balance, and queues a soft reminder for the remainder only if you want it to.
Import CSV or connect via API. For most freelancers Redline is enough on its own.

Send once.
Redline keeps it moving.

Free for your first three open invoices. No card.