Side by side
Letter Friend vs Postronomy
Both stand on direct mail automation software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Paid APIWeb
Letter Friend combines human-written mail with campaign scheduling, tracking, and several sending options. Businesses should request a quote to determine the price for their needs.
Visit Letter Friend Paid APIWeb
Postronomy combines campaign automation with physical mailing, fulfillment, QR tracking, and support. Its monthly plans, postage charges, and stated delivery limitations are central to evaluating fit.
Visit PostronomyThe facts
| Letter Friend | Postronomy | |
|---|---|---|
| Free plan | No | No |
| Open source | Not published | Not published |
| Runs on | API, Web | API, Web |
| Lowest paid plan | Free or on request | Pro Premium - Self Service: $199 a month |
| Plans published | 1 | 2 |
| Maker | Not published | Not published |
| Website | letterfriend.com | postronomy.com |
| On direct mail automation software | #19 of 28 | #23 of 28 |
Letter Friend: what it does well
- Supports individual mail and bulk campaigns.
- Campaigns can be scheduled up to a year ahead.
- Offers USPS address verification.
- Connects with listed CRM services and Zapier.
- Supports handwritten letters, envelopes, and cards.
What to know first
- No free plan is listed.
- Pricing requires a quote request.
- Plan prices are not displayed.
Postronomy: what it does well
- Automates printing, fulfillment, shipping, and tracking
- Supports one-to-one mail personalization
- Dynamic QR codes can trigger SMS follow-ups
- Includes API access and common CRM integration
- Plans include analytics and live support
What to know first
- No free plan or free trial
- Postage is extra for free postcards
- List-builder addresses have a 100-address minimum
- USPS Every Door Direct Mail is unavailable
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