ZAP~POST

ZAP~POST turns customer activity into personalized postcards and letters, making it a strong fit for teams that already run ecommerce, CRM, or customer data workflows. Its range of connection options and one-to-one mail design give it room to support targeted campaigns, while variable country costs and customer-managed conversion attribution call for planning.

Overview

Campaigns can start when a real-time event or customer action occurs, then use recipient-specific content, QR codes, and tracking. That combination is useful when mail needs to respond to individual behavior rather than go out as a standalone batch. ZAP~POST supports oversized and A5 postcards, an A5 one-piece mailer, and secure letters, giving teams several formats for different messages.

The service validates recipient data and cleanses records; rejected records may earn Zap credits under the applicable credit rules. This can reduce waste from bad addresses, though buyers should account for the credit rules when forecasting usable campaign volume. ZAP~POST says it is ISO 27001 certified and provides security policies and compliance materials through Vanta. It also says its on-demand mail uses FSC paper from sustainable and recycled sources, biodegradable inks, and recyclable paper.

Key features

The web design app offers drag-and-drop editing, custom fields, uploaded images, and unique promotional or QR codes. Teams can adapt creative to a recipient or campaign without being limited to a single fixed layout. Tracking can show recipient-level engagement, but conversion attribution remains the customer's responsibility through its own analytics platform. That suits organizations with an established measurement setup; teams expecting the mail platform to report campaign conversions should look elsewhere.

Named integrations include Klaviyo, Dotdigital, Ometria, HubSpot, Bloomreach, Zapier, Force24, and Shopify. Ecommerce, CRM, and CDP systems can also connect by API, with StackConnect, Zapier, and Patchworks as connection options. API access and broad connection choices make ZAP~POST practical for teams building mail into existing customer journeys. Support is offered by email, chat, or phone during UK office hours, with support levels varying by plan.

Pricing

The plans are shown with £0 monthly membership and charges from 0p per Zap; actual mailing costs depend on the campaign. Website pricing is based on second-class mail. First-class prices require contacting the company, which makes direct comparison and budgeting harder for buyers who need that service. A one-off trial campaign is available without a credit card, and ZAP~POST advises sending at least 1,000 recipients in a trial.

PlanAllowance and included featuresBest fitMonthly — BasicUp to 1,000 Zaps per month, up to 5 campaigns, 1 integration, email and chat supportSmall, lower-volume programs that can work within a five-campaign capMonthly — StandardUp to 2,500 Zaps per month, up to 10 campaigns, 1 integration, API access and logs, phone or Meet supportTeams needing API access and a larger campaign allowanceMonthly — ProUp to 5,000 Zaps per month, unlimited campaigns, 2 integrations, MFA, webhooks and logs, insightsTeams running several automated campaigns and needing more integration capacityMonthly — PremiumUp to 10,000 Zaps per month, unlimited campaigns and integrations, dedicated account managerHigher-volume teams that want broad integration access and a named contactAnnual — BasicUp to 12,000 Zaps per year, up to 5 campaigns, 1 integration, email and chat supportSmaller programs planning on an annual allowanceAnnual — StandardUp to 30,000 Zaps per year, up to 10 campaigns, 1 integration, API access and logs, phone or Meet supportAnnual users needing API access and a moderate campaign ceilingAnnual — ProUp to 60,000 Zaps per year, unlimited campaigns, 2 integrations, MFA, webhooks and logs, insightsAnnual programs needing Pro features and more volumeAnnual — PremiumUp to 120,000 Zaps per year, unlimited campaigns and integrations, dedicated account managerLarge annual programs that need the highest stated allowancePay As You Go — Basic500–unlimited Zaps per month, 1 campaign, 1 Zap format, minimum send 500 Zaps, email and chat support; no membership fee shownOccasional senders who can meet the minimum and use one formatEnterpriseCustom pricing for large organisationsLarge organisations seeking a bespoke planThe Basic tiers keep the entry point narrow: fewer campaigns, one integration, and email or chat support. Standard adds API access and phone or Meet support; Pro removes campaign caps and adds more operational controls, while Premium raises the volume ceiling and includes a dedicated account manager. Pay As You Go avoids a shown membership fee but requires at least 500 Zaps per send and limits users to one campaign and format.

Platforms

ZAP~POST is available through the web and an API. It identifies the UK as its main standard mailing location and also supports sends in the US, Germany, the Netherlands, France, and Italy. Mailing specifications, pricing, and turnaround vary by country, so international programs should confirm local requirements and schedules before choosing formats or setting launch dates.

Who it's for

ZAP~POST suits ecommerce and customer marketing teams that want to trigger physical mail from customer events and personalize it at recipient level. It is particularly relevant when a business already uses one of its named integrations or can connect through an API. The product is less suitable for teams that need conversion attribution built into the mailing service, depend on first-class prices up front, or want identical mailing terms across several countries.

Pros and cons

Event-triggered, one-to-one mail: connects customer actions to personalized postcards and letters, supporting campaigns that respond to individual behavior.

Multiple formats and design controls: postcards, a mailer, and secure letters pair with custom fields, uploaded images, and unique codes.

Many integration routes: named ecommerce and CRM integrations plus API, StackConnect, Zapier, and Patchworks give teams several ways to connect existing systems.

Address cleansing: validation and record cleansing can reduce sends to invalid addresses, with credits possible for rejected records under the credit rules.

Attribution work stays with the customer: tracking and QR codes support engagement measurement, but teams must use their own analytics platform for conversion attribution.

Costs vary by country and service: the website bases prices on second-class mail, and first-class pricing must be requested; international specifications, prices, and turnaround also vary.

Plan caps shape smaller tiers: Basic limits campaigns and integrations, while Pay As You Go has a 500-Zap minimum, one campaign, and one format.

Alternatives

Inkit is a freemium API and web option with a free plan that includes three signature requests per month, one seat, and 10GB of storage. Choose it when those document-signature limits better match the job than ZAP~POST's physical mail campaigns.

thanks.io offers a pay-as-you-go plan with no monthly subscription fee and full API access. It is a reasonable alternative for buyers comparing a no-subscription mail option; ZAP~POST is the more clearly specified fit for event-triggered, one-to-one campaigns across the listed integrations.

Lob Address Verification is a freemium API and web service with a Developer plan that includes up to 6,000 mailings and one user, plus priced additional address verifications. Choose it when address verification and its stated developer allowance are the priority.

DocuPost has a free API and web plan for letters and postcards, with no send limits, pay-per-mailpiece pricing, one user, DocuPost branding on cover letters, and 90-day retention. It suits buyers who value an uncapped free sending tier and can accept those plan conditions.

Postalytics offers a free plan with unlimited campaigns, templates, and lists, one user login, basic integrations, and mail charged per piece. Choose it when campaign and template volume matter more than ZAP~POST's recipient-level personalization and event triggers.

Stannp has a free plan with one user, one template, 50,000 contacts, and 20 virtual printer items per month, with no minimum or maximum send volume. It is worth comparing for programs that need that contact allowance and flexible send volume.

PostBridge is a paid alternative with Android, iOS, API, and web access; its Business/Profile plan is $39 per month, with 5 licensed team members included. Choose it when mobile apps and a stated team allowance matter.

PostPilot offers a free plan with the full platform, pay-only-for-postcards-and-postage pricing, and more than 10 analytics reports. It may suit teams that prefer that free entry and reporting package.

See the Direct Mail Automation Software directory for more options.

Verdict

Choose ZAP~POST if your team wants customer events to trigger personalized physical mail and can connect the service to its ecommerce, CRM, or CDP workflow. Its strongest advantage is the combination of recipient-level design, multiple connection routes, and address cleansing. Look elsewhere if you need conversion attribution inside the platform or predictable first-class and cross-country costs before committing to a campaign.