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What is Thanks.io?

thanks.io is a direct mail automation platform and API that sends handwritten-style postcards, letters, notecards, gift cards, and magnetic MagnaCards on autopilot — combining the attention-grabbing power of physical mail with the speed, tracking, and personalization of modern marketing software. Trusted by 5,000+ businesses since 2017, thanks.io serves real estate agents, e-commerce brands, SMBs, sales teams, agencies, nonprofits, and developers who need to break through digital noise and reach customers in the mailbox. Mailer types: 4x6, 6x9, and 6x11 postcards; windowed and windowless letters; folded notecards with real stamps; branded gift cards; and 6x9 MagnaCards with a pop-out fridge magnet. Standard or First Class postage, domestic and international. A proprietary handwriting engine with realistic AI fonts and optional Realism Mode makes machine-generated mail look genuinely hand-written. Per-recipient AI messaging, dynamic images, Google Street View postcards, and replacement variables drive true one-to-one personalization at scale. Dynamic per-recipient QR codes fire real-time scan notifications via email, SMS, and webhooks, with full analytics by template and list. Campaign automation includes drip, birthday, holiday, Neighbor Blast radius mailers, and evenFLOW paced sending. Lifecycle tools cover address verification, suppression lists, move-on-scan, and address collection landing pages. Developer-first REST API v2 with OpenAPI spec, OAuth2, webhooks, embeddable widget, and an LLM-friendly MCP server. 500+ native integrations including HubSpot, Salesforce, Shopify, WooCommerce, plus Zapier, Make, n8n, and 8,000+ apps. No minimums, no commitments, real free tier, Business at $49/mo, Professional at $199/mo, and discounted nonprofit postage from $0.45/piece.

What is Poplar?

Meet Poplar, an innovative programmatic platform designed to utilize API capabilities, enabling brands to quickly and easily create personalized direct mail campaigns within minutes. With an intuitive interface, users can effortlessly set up and initiate both one-time and recurring campaigns while integrating smoothly with leading marketing automation solutions, e-commerce systems, and cloud services. Enhance your mailings by using dynamic HTML templates that provide customized imagery and text tailored for each individual recipient. Reach out to customers who have left items in their shopping carts through strategically targeted direct mail, and effortlessly upload custom mailing lists that create opportunities for cross-selling and trigger responses from existing clients, all while selecting from a range of postage options, delivery speeds, and scheduling preferences. Whether your goal is to send out a single piece or a million, you can take advantage of competitive rates per piece without any unexpected SaaS or subscription fees. Our platform also features comprehensive multivariate testing capabilities, allowing marketers to analyze and improve various aspects of their campaigns across different channels, ensuring optimal impact and engagement. By leveraging these sophisticated tools, brands can dramatically enhance their marketing efforts and realize remarkable outcomes, ultimately leading to greater customer satisfaction and loyalty.

Media

Media

Integrations Supported

Zapier
BoldTrail
Braze
Customer.io
Drip
GoHighLevel
HubSpot CRM
HubSpot Customer Platform
Integrately
Klaviyo
Mailchimp
Mixpanel
Pabbly Connect
Pipedream
Sailthru
Shopify
Simon AI
Wufoo

Integrations Supported

Zapier
BoldTrail
Braze
Customer.io
Drip
GoHighLevel
HubSpot CRM
HubSpot Customer Platform
Integrately
Klaviyo
Mailchimp
Mixpanel
Pabbly Connect
Pipedream
Sailthru
Shopify
Simon AI
Wufoo

API Availability

Has API

API Availability

Has API

Pricing Information

45¢ per postcard
Free Trial Offered?
Free Version

Pricing Information

Pricing not provided.
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

thanks.io

Date Founded

2017

Company Location

United States

Company Website

www.thanks.io

Company Facts

Organization Name

Share Local Media

Date Founded

2016

Company Location

United States

Company Website

heypoplar.com

Categories and Features

Direct Mail Automation

A/B Testing
Analytics/Reporting
Campaign Management
Data Import/Export
Delivery Tracking
Design Management
Event Triggered Mailings
List Scrubbing
Mailing List Purchasing
Mailing Services Integration
Pre-made Templates
Printing Services Integration
Response Alerts

Categories and Features

Direct Mail Automation

A/B Testing
Analytics/Reporting
Campaign Management
Data Import/Export
Delivery Tracking
Design Management
Event Triggered Mailings
List Scrubbing
Mailing List Purchasing
Mailing Services Integration
Pre-made Templates
Printing Services Integration
Response Alerts

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