Get paid without chasing.

Duespark sends polite, scheduled payment reminders so freelancers and small service businesses never have to chase a late invoice again. Drop in an amount, a due date, and a payment link — we run the sequence.

Start FreeSee how it works

Free for 3 active invoices • No card required • Works with any payment link

INV-2026-0419

Awaiting payment

Invoice from

Mara Lindgren Design

Billed to

Northwind Coffee Roasters

1208 Latrobe Ave · accounts@northwind.co

Due

Aug 29

Total

$1,840.00

Reminder lane

2 of 5 sent · queue paused

How it works

Four steps. Then it runs itself.

You set it up once. Duespark runs the reminders, marks invoices paid, and stays out of your way.

  1. 1

    Add your invoice

    Drop in an amount, a due date, your customer's email, and the payment URL — Stripe, PayPal, Wave, or any link.

  2. 2

    Pick a schedule

    A pre-due heads-up plus gentle nudges at 0, +3, +7, and +14 days. Edit, pause, or remove any step.

  3. 3

    Reminders send automatically

    Quiet, on schedule, in your voice. No inbox babysitting, no chasing from your side.

  4. 4

    Status flips to Paid / Overdue

    Marks itself paid the moment your webhook fires — or click once to mark it manually.

What's inside

Plain features. No asterisks.

AI tone drafts

Friendly, professional, or firm — your call. The amount, due date, and payment link never change.

Customizable nudge schedules

Per-invoice cadence, per-step pauses, per-step subject. Skip a step when you already pinged them.

Paid / Overdue tracking

Marks itself paid the moment the webhook fires. One click does it manually when you don't have one.

Stripe, PayPal, Wave, any link

Bring whatever you already send invoices from. Duespark runs alongside it — there's nothing to migrate.

Pricing

Free until your reminders start earning their keep.

Upgrade when you outgrow Free — never because of a feature paywall.

One product, four tiers.
Free for 3 active invoices. Plans billed monthly or yearly — cancel any time.
  • Free
  • Solo
  • Business
  • Pro
See full pricing

FAQ

Concerns we'd want answered too.

Talk to us

Questions, weird edge cases, or a feature request.

Drop a note and a person — not a bot — replies within one business day. Existing customers get priority replies on Pro.

Or email duespark-2@polsia.app

Ready when you are

Set your first invoice on autopilot.

One invoice, a few fields, and Duespark takes it from there.

Start FreeFree first. We reply within one business day.