Thanks.io vs Handwrytten: how each makes the handwriting, how each bills and who should pick which

Thanks.io vs Handwrytten: the main difference is how the handwriting is made

Both services take a typed message and a recipient list and mail a finished piece. The difference is the ink. Thanks.io's FAQ says it uses a proprietary digital engine, not real pens or human writers. Handwrytten's pages say its custom robots hold real pens and write in the handwriting style you choose.

A vendor's comparison page favors its author. Thanks.io's comparison page calls Handwrytten a fit for real-pen notecards, and Handwrytten's own pages stress real ink. Both are sales positions, so this guide sticks to what each vendor states about itself on pages read on October 24, 2026.

Side by side: what each vendor's pages state

• Products: Thanks.io lists postcards in three sizes, windowed and windowless letters, folded notecards, gift cards and magnet cards. Handwrytten centers on handwritten cards with addressed envelopes, gift cards and optional inserts.
• Postage: Thanks.io's per-piece rate includes US postage. Handwrytten's pricing page says domestic postage is billed at the current USPS rate, and its FAQ says postage is billed through at cost.
• Mail class: Thanks.io offers Standard and First Class, with First Class estimated at 5 to 10 business days. Handwrytten says it sends all notes First Class, with domestic delivery typically 2 to 7 business days.
• Postmark and returns: Thanks.io returns undeliverable pieces on First Class only and mails from Texas. Handwrytten's FAQ says the postmark will read Phoenix, Arizona.
• Bulk and automation: Thanks.io accepts CSV uploads and connects through its API, HubSpot, Zapier and Make. Handwrytten's FAQ says bulk uploads use an Excel template, not CSV, and its pages list Salesforce, HubSpot, Shopify, Zapier and Make.
• API: both publish API documentation. Thanks.io includes the API on every plan. Handwrytten says its business plans include API access.

How the cost is built differently

Thanks.io combines a plan fee, which is nothing on Pay as you go, with a per-piece rate that includes postage. Handwrytten sells business plans in four monthly tiers with a lower rate per card at each step, an annual billing option, consumer plans with monthly card allowances, and prepaid credits, and bills postage in addition.

To compare totals, add the same lines for both: plan fee, pieces times the rate, postage and add-ons such as gift cards. Amounts are left out here because both change, and Handwrytten's FAQ and pricing page state different starting prices for a card. Read both pricing pages from a US view on the day you decide.

Use cases: which fits which job

• Choose Thanks.io for postcards and letters sent in volume or from a customer event, when you want postage inside the rate and a plan with no monthly fee to start.
• Choose Handwrytten for notecards where real pen ink matters, such as a thank-you after a sale or a follow-up after a meeting, and when you want a handwritten envelope.
• Consider Simply Noted, which also describes robots with real ballpoint pens and offers postcards and note cards. The seven-tool shortlist places it among the options.
• Consider neither for a mailing to every address on a route. USPS Every Door Direct Mail is built for that, with the USPS tool and a local printer.

Questions to ask before you choose between them

• Do I need ink from a real pen, or is a convincing printed script enough for this recipient?
• Will I total postage, plan fee and extras for both, using my own monthly volume?
• Which triggers do I need, and are they on the plan I would buy? The Thanks.io pricing guide lists what each plan adds.
• What happens to undeliverable pieces, and how will I clean my list afterward?
• Customer quotes on both vendors' pages are the vendors' own claims, in line with the FTC's endorsement guides. The Thanks.io review covers its limits.