Past Due is the late-invoice chaser for solo freelancers — drafts the reminder at the right cadence, hands it to your own Mail app, never sends anything itself.
$14.99 one-time. · Free up to 3 outstanding invoices.
Sending the invoice is easy. The math, the PDF, the email — done in twenty minutes. What kills you is the second email. The "hey, just checking in" one. Day 14, day 30, day 45 — every stage needs a different tone, and the difference between getting paid and souring the relationship lives in those small word choices.
So you delay. Often by weeks. The big invoicing apps don't help: they either auto-fire generic "your invoice is overdue" emails (tone-blind, exactly what you don't want with a client you actually like) or bury the workflow three settings deep. Past Due is the in-between tool — the one that takes the writing off your plate without taking the relationship out of your hands.
Past Due treats the chase as the product, not a checkbox in someone else's invoicing suite. Three pieces, working together.
A gentle nudge at 7 days. A check-in at 14. A firm note at 30. A final at 45+. Three tones for each — warm, neutral, formal — pinned per client.
Tap "Send reminder" and your own Mail composer slides up with the subject, body, and PDF attachment already filled in. You review, you edit, you send from your own account. The app never sends anything itself.
Outstanding invoices ranked by how late they actually are — not by when you created them. Cash-at-risk total at the top. Per-client late-rate at the bottom.
Twelve editorially-crafted templates. Warm for the long-standing client. Formal for the slow corporate. Neutral for everyone else.
Past Due is a draft tool. Every reminder opens in your own Mail app, on your own email account, with you in control of the send. The relationship with that client is yours — the chase shouldn't be delegated to a bot.
Timeline, draft, hand-off, per-client tone, reports. The App Store has the full set in higher resolution.
Unlock the full app with a single in-app purchase. No recurring charges, no take from your invoices, no future paywalls bolted on.
Free to try. Up to 3 outstanding invoices, full reminder workflow, current-month reports.
No — never. Every reminder opens in your iPhone's Mail composer with the draft pre-filled. You review, edit if you want, and tap Send from your own account.
No. Past Due tracks invoices you've already sent. If you want to attach the PDF to a reminder, you can — Past Due references the file, never copies it.
No. You can paste a payment link into an invoice (Stripe, Wise, PayPal, your bank's payment URL — anything) and Past Due will include it in the draft. We take nothing.
None. There is no backend, no analytics, no telemetry. Your clients, invoices, and reminder history live only on your iPhone. See the privacy page for details.
No. One-time purchase is core to the positioning — the app exists to push back against subscription fatigue, not contribute to it.
v1 is iPhone-only (iOS 18+). The single-platform focus is deliberate. If Past Due lands, broader platform support will be considered.
Yes. Past Due ships in English and Italian, with editorially-distinct reminder templates in each language — not literal translations. Both work out of the box.
Write to marco@rimar.me — replies same-day Mon–Fri (Italy time). Or visit the support page.
$14.99 one-time. Free up to 3 outstanding invoices.