How PostKnock Pricing Works: Free vs Pro vs Per-Card

PostKnock's pricing is designed to make sense at the back of a napkin. There are two plans, one per-card price for each plan, and zero hidden fees. This guide walks through what's in each plan, how the per-card pricing works, what the wallet does, and why we don't make you sign a contract or commit to a minimum.

The Two Plans at a Glance

The full plan comparison and the latest per-card pricing for larger postcard sizes (6×9, 6×11) are on our pricing page.

The Free Plan ($1.05 per Card)

The Free plan is genuinely free — no monthly fee, no trial timer, no credit card to sign up. You only pay when you send a postcard. The 4×6 rate of $1.05 per card includes design, printing, addressing, and USPS First-Class postage. There are no setup fees and no minimums.

Free is the right plan when you're testing PostKnock for the first time, running a one-off promotion (e.g., "we just moved to a new location"), or have a small list under 100 contacts. Once you start running multi-wave campaigns or want to add follow-up calls, Pro becomes the better economic choice.

The Pro Plan ($99/month + $0.79 per Card)

Pro is a flat $99/month plus a lower per-card rate of $0.79. The savings on per-card rate alone covers the monthly fee at around 380 cards/month — less than what most service businesses send in a single recall campaign.

What you get on Pro that you don't get on Free:

• Multi-wave campaigns. Up to 3 waves per campaign, with built-in 28-day spacing logic. Cumulative response rates of 8–12% vs 3–5% for single-wave.
• Call queue + scripts. Automatic follow-up call list for your front desk 3–5 days after each wave drops.
• Playbook templates. Pre-built campaign sequences (recall, reactivation, seasonal) with timing, copy, and call scripts ready to go.
• Priority support. Faster response times and direct access to setup help.

A common question is "if I don't send anything in a given month, do I still pay $99?" Yes — the monthly fee covers ongoing access to the call queue, playbooks, and any campaigns that are still in progress from prior months. If you genuinely won't be sending anything for a quarter, downgrade to Free temporarily and re-upgrade when you're ready.

How Per-Card Charges Work: The Wallet

PostKnock uses a wallet model for per-card costs. When you launch a campaign, the total cost (cards × rate) is deducted from your wallet balance. If you don't have enough funds, you'll be prompted to top up before launch.

Why a wallet instead of monthly invoices for postcard volume?

• No surprise bills. You see exactly what each campaign costs before you launch it.
• Pre-approved budget. Wallet balance acts as a soft cap. You can't accidentally launch a $5,000 campaign if your wallet only has $500.
• Faster launch. Once funds are in the wallet, future campaigns ship without going back to billing.

You can top up the wallet in any amount you want (minimum $50). Funds never expire. If you stop using PostKnock, any unused balance can be refunded by emailing support.

Postage and Printing Are Always Included

The per-card rate is fully bundled. There are no separate charges for printing, postage, addressing, mail prep, USPS processing, or design rendering. The price you see in the campaign launch screen is the price you pay — that's it.

USPS First-Class is the default postage class. It delivers in 3–5 business days nationwide and includes return service if an address is undeliverable, so we can flag it on the contact for you. Standard Class (slower, slightly cheaper) is on the roadmap for high-volume customers but is not available in MVP.

No Contracts. Cancel Anytime.

PostKnock is month-to-month. There's no annual commitment, no early termination fee, and no minimum-spend agreement. Pro can be cancelled or paused from your account dashboard at any time — access continues through the end of your current billing period.

If you cancel mid-campaign, any waves that have already been mailed will still be delivered. Future scheduled waves are paused until you reactivate. Your contacts, designs, and historical data are kept on your account so you can pick up where you left off later.

When Pro Pays for Itself

Quick math for whether Pro is the right plan:

Comparing to Alternatives

PostKnock is meaningfully cheaper than agency-style competitors, in part because we don't have account managers, sales reps, or contract negotiation overhead. For side-by-side comparisons, see our pages on PostKnock vs Postalytics, vs PostcardMania, and vs Wise Pelican.

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Related articles

• Multi-Wave Campaigns: Sequencing Postcards Over Time
• Getting Started with PostKnock