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 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.