Genuinely Free Tier

Free Direct Mail Software:
Real Postcard Campaigns on the Free Tier

Design a postcard, add QR tracking, and mail a real single-wave campaign, without a subscription. No monthly fee, no minimum, no time limit. You only ever pay per piece, from a prepaid wallet.

Start Free Mail a free sample to yourself

Free postcards from about $1.04 each (4×6): printing and USPS First-Class postage included.

What "Free" Actually Means Here

A lot of "free" direct mail tools are free until you try to mail something. PostKnock's free tier mails real postcards. The plan is free; the postage isn't, and that's the only thing you pay for. No subscription, no setup fee, no minimum order.

What's free, for real

  • ✓ A real account, no credit card to sign up
  • ✓ The full postcard Design Studio (4×6, 6×9, 6×11)
  • ✓ QR-code tracking on every card
  • ✓ Single-wave postcard campaigns to a list you import
  • ✓ Pre-built playbooks across 50+ industries to start from
  • ✓ No minimum order, no time limit on the free plan

What you pay for

  • ✓ Per-piece printing + USPS First-Class postage, charged when you send
  • ✓ About $1.04 per 4×6 card on Free (6×9 and 6×11 cost more)
  • ✓ Paid from a prepaid wallet you top up, never a surprise charge
  • ✓ That's it. The software itself stays free.

Per-piece pricing covers printing and postage. You see the total before anything mails.

Free vs Pro: Exactly What's Included

The free tier is built to run a real postcard campaign end to end. Pro adds the phone-call follow-up and multi-wave sequencing, and lowers the per-piece price. Here's the honest line between the two.

Capability Free Pro
Postcard Design Studio (4×6 / 6×9 / 6×11)✓✓
QR-code tracking on postcards✓✓
Import your contacts (CSV or Zapier)✓✓
Industry playbooks (50+ verticals)✓✓
Single-wave postcard campaigns✓✓
Multi-wave playbooks (unlimited waves)✕✓
Phone-call follow-up via the Call Queue✕✓
Per-piece price, 4×6 (printing + postage)~$1.04~$0.91
Plan cost$0$99/mo or $799/yr

Per-piece prices are for the 4×6 size and include printing and USPS First-Class postage; the 6×9 and 6×11 sizes cost more. See the full breakdown on the pricing page.

Run a Real Campaign on the Free Plan

Four steps, no subscription. Everything below happens on the free tier. You only spend money at the moment you mail.

1

Bring in your list: CSV or Zapier

Two ways to get contacts in, both free. Export a CSV from whatever system you already use (your spreadsheet, your practice or shop software, anything) and import it; the wizard auto-maps name and address columns. Or set up a Zap and new contacts flow into PostKnock automatically from 6,000+ apps, no export step. There's no deep native CRM or PMS sync. CSV or Zapier is how contacts come in.

2

Design the postcard in the Design Studio

Start from a 50+ industry playbook or a blank canvas. Pick 4×6, 6×9, or 6×11, drop in your offer and a tracked QR code, and lay out front and back in the visual editor. No design tools or outside files required.

3

Top up your wallet and launch the wave

Free is a single-wave postcard campaign: one send to your list. Add funds to your prepaid wallet, review the per-piece total up front (about $1.04 per 4×6 card), and launch. PostKnock prints and mails First-Class via USPS. Prefer to blanket a neighborhood instead of a named list? EDDM support is on our roadmap: see /eddm.

4

Track scans and see what landed

Every card carries a tracked QR code. Scans tell you the mail got attention and which offer is pulling. When you're ready to add multi-wave sequencing and a phone-call follow-up, Pro is one upgrade away. Your designs and list come with you.

Pay-From-Wallet, No Dark Patterns

The free plan is free because the business model is honest: you pay for the postage you actually send, and nothing else. Here's how the money works, and what we deliberately don't do.

How you pay

  • ✓ You add funds to a prepaid wallet, then spend from it
  • ✓ Each send shows the per-piece price and total before it mails
  • ✓ Free: ~$1.04 per 4×6 card. Pro: ~$0.91 per 4×6 card
  • ✓ The per-piece price already includes printing and USPS postage

What we don't do

  • × No credit card required to start: the free plan really is free
  • × No auto-charging your card on a "free trial" that flips to paid
  • × No minimum order and no forced monthly spend on Free
  • × No locking your designs or list behind a paywall to leave

Pro is an optional upgrade, $99/mo or $799/yr, that adds the Call Queue and multi-wave playbooks and lowers your per-piece cost. You choose it when the math works for you, not because a trial expired.

What You Can Mail for Free

A real postcard, designed in the Design Studio with a tracked QR code. The same card you'd send on either plan. Free covers one wave; Pro adds the follow-up call and more waves.

Design Studio postcard (4×6)

Example postcard front designed in the PostKnock Design Studio with a clear offer and a tracked QR code, the kind of card you can mail on the free plan

Designed in the Design Studio (4×6 / 6×9 / 6×11), printed and mailed First-Class via USPS, QR code tracked.

Your wallet at send time

Review & Send Free plan
Recipients (single wave) 500
4×6 card: printing + USPS postage ~$1.04 ea
Charged from wallet ~$520

Wallet balance shown before you confirm. Nothing mails, and nothing is charged, until you click send.

Illustrative figures. Your total depends on size, quantity, and plan; you always see it before sending.

Design your first free postcard →

Built for Service Businesses Across 50+ Industries

Free direct mail fits anywhere a postcard can win back a customer or fill a slow week. Each industry ships with a pre-built playbook (wave timing, messaging direction, UTMs, and call scripts) so a free single-wave campaign is mostly set up before you start. Postcard designs are authored separately in the Design Studio.

Dental

Dental recall postcard design: a free exam and cleaning offer for returning patients, with a book-your-visit button and a tracked QR code

HVAC

HVAC postcard design: an $89 spring AC tune-up offer with a call-to-schedule button and a tracked QR code

Veterinary

Veterinary postcard addressed to one named client, reminding them their pet is due for an annual wellness exam, with a schedule-visit button and a tracked QR code
Dental Practices Optometry Practices Med Spas HVAC Contractors Veterinary Clinics All Industries

Keep Reading

Postcard + Call Follow-Up

When you outgrow a single free wave: how the Pro Call Queue surfaces who to call after a mailer lands, with a script ready to go.

See the 1-2 punch →

Full Pricing

Per-piece prices by size for Free and Pro, the $99/mo or $799/yr plan, and how the prepaid wallet works.

See pricing →

Frequently Asked Questions

Is the free plan actually free, or is it a trial?▼

It's a real free plan, not a trial. There's no credit card required to sign up, no minimum order, and no time limit. You can design postcards and run a single-wave campaign on the free tier indefinitely. The only thing you ever pay for is the per-piece cost of postcards you actually mail (about $1.04 for a 4×6 card, including printing and USPS First-Class postage) paid from a prepaid wallet you top up yourself.

What exactly do I get on Free versus Pro?▼

Free includes the full postcard Design Studio (4×6, 6×9, 6×11), QR-code tracking, CSV and Zapier contact import, industry playbooks across 50+ verticals, and single-wave postcard campaigns. Pro adds two things Free doesn't have: multi-wave playbooks (as many waves as your sequence needs) and phone-call follow-up via the Call Queue. Pro also lowers the per-piece price to about $0.91 for a 4×6 card. Pro is $99/mo or $799/yr.

How do I pay for the postcards I send?▼

You add funds to a prepaid wallet, and each send is charged from that balance. Before anything mails, you see the per-piece price and the full total for the batch, so there are no surprise charges. The per-piece price already includes printing and USPS First-Class postage. Nothing is charged until you confirm the send.

How do my contacts get into PostKnock? Does it integrate with my CRM?▼

Two ways, and both are free. The simplest is CSV: export a list from whatever system you use and import it: the wizard auto-maps your name and address columns. Or use Zapier: build a Zap so a new contact in one of 6,000+ apps flows into PostKnock automatically. It matches an existing contact or creates a new one, no export or spreadsheet. Both are inbound only, so contacts flow into PostKnock, not back out. There are still no deep native CRM or practice-management integrations. CSV or Zapier is how contacts come in today.

Can I send a multi-touch campaign on the free plan?▼

Free is a single-wave postcard campaign. One coordinated send to your list. Multi-wave playbooks (as many waves as your sequence needs) and the phone-call follow-up that pairs with them are Pro features. Many businesses start with a single free wave to test an offer, then upgrade to Pro when they want to add follow-up waves and calls. Your designs and contact list carry over when you upgrade.

Does the free plan track results?▼

Yes. Every postcard you design can carry a tracked QR code, on Free and Pro alike. Scans give you a signal that the card landed and got attention, and which offer is pulling. Treat scan counts as one input, not a complete picture, not everyone who responds scans the code, and not every scan books.

What postcard sizes can I mail on Free?▼

All three sizes are available on the free plan: 4×6, 6×9, and 6×11. You design any of them in the Design Studio. Per-piece pricing includes printing and USPS First-Class postage; the 4×6 is the cheapest (about $1.04 on Free), and the larger sizes cost more.

Mail Your First Postcard Free

Design it, add a QR code, and send a real campaign, no credit card, no minimum. Pay only for the postage you send.

Start Free

Per-piece prices (~$1.04 on Free / ~$0.91 on Pro for a 4×6 card) are illustrative current figures that include printing and USPS First-Class postage; larger sizes cost more, and the live total is shown before you send: see the pricing page. Any direct-mail response context elsewhere on this site is drawn from published industry benchmarks (e.g., ANA / DMA Response Rate Report) and presented as a range, not a guarantee.