MappyMail – The cheapest way to send letters online
No-account mailing for $1.60 beats Lob's enterprise complexity for individuals.

Ship code that prints and mails real postcards — Lob does this but less playfully.
Developers building apps that send physical mail
Lob.com · Postcardly · Twilio
No-account mailing for $1.60 beats Lob's enterprise complexity for individuals.
No signup required for one-off mailings, but Lob's API already handles this at scale.
QR code friction beats willpower against TikTok's retention engineers.
Zero third-party email service, fuzzy variable mapping, preview-before-send, but Zapier+SendGrid solves this.
This shaves a boring but real pain down to a tiny, usable tool: pick an envelope size, type addresses, preview, and export a PDF tuned for common printers. Generating USPS Intelligent Mail barcodes locally and keeping everything client-side is a clever, privacy-friendly touch. It feels aimed at practicality rather than novelty—would love CSV/address-book import and clearer mobile support to make it indispensable.
Shopify store selling canvas prints of historically significant source code.