Thanks.io
Send handwritten postcards & letters for as low as 49c including shipping. Humans do not write our postcards. Think about all the carpel tunnel surgeries we are preventing. Furthermore, for 49c we would have to own an illegal sweatshop to pull this off. We do however utilize the next best thing...a hybrid font/AI system that starts with twelve custom handwritten fonts that are directly modeled off of real handwriting. We took that a step further by altering the pen pressure, line angle, & glyphs to truly fool even the most cunning observer. Send cards that look like your ads to your geofence for an increased lift+response. You don't need to compete for screen space. Queue your email followups to send after triggering a postcard so that they arrive at around the same time for the best possible response rate. Automatically welcome people with a handwritten note to your brand and business when they sign up or purchase.
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Melon Post
Melon Post is a messaging-based service that allows users to send real printed postcards directly through WhatsApp. Instead of downloading an app or creating an account, users simply chat with the service, upload a photo, write a message, and provide the recipient’s address. The platform then generates a preview of the postcard so users can confirm the design before completing payment. Once approved, Melon Post prints the postcard on premium 350gsm glossy cardstock and mails it worldwide. The service handles the entire process from printing to dispatch, making it easy to send physical postcards in minutes. Payments are securely processed through Stripe, ensuring safe and simple transactions. By combining messaging convenience with traditional mail, Melon Post makes sending personalized postcards fast and accessible.
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LetterFriend
LetterFriend is a direct mail and handwritten letter service that helps organizations create personalized, real-handwritten notes, envelopes, and cards, crafted by professional writers rather than fonts, robots, or printers, to cut through digital noise and strengthen customer relationships, referrals, and pipeline growth through high-impact physical outreach. The platform lets users upload contact lists via CSV or integrate with CRM systems, Zapier, or an API to automate and scale campaigns, whether sending thank-you letters, prospecting notes, holiday cards, or other personalized correspondence that is hand-addressed, handwritten, and mailed on behalf of the customer. LetterFriend emphasizes human-touch direct mail with real people in New Jersey writing each word, delivering consistently higher open and response rates compared with typical printed or email outreach, and offers customizable options such as envelopes, sticky notes, signatures, postcards, etc.
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DocuSend
Remotely send your documents directly to the United States Postal Service through our cloud-based mailroom. DocuSend works with any accounting, billing, or CRM software that produces PDF documents containing a valid mailing address. Users can upload directly, or developers can integrate our REST API to offer a "Send Mail" button in their software, either as a reseller or for internal direct connectivity. There are enormous economic advantages for any business or organization that needs to safely print and mail documents on demand. We also offer an automated email service called DocuLink that lets you know which users open the document links sent and makes it easy to follow up with a hard copy if needed. We are sure that one of our features will improve your mailing experience: DocuSend, DocuLink or the Print-To-Mail Rest API will streamline the manual and time-consuming print, mail and email process.
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