Our promise

Thimblepost sends real, physical letters from imaginary friends to your child. We write to each kid's reading level — not their age — so the letters fit however they read today (most are between 4 and 8).

Each letter is written by AI in the character's voice, checked by a second AI against our rules, and then read by a person before it's ever printed. We say that plainly because you're trusting us with your kid.

What we will never put in a letter

• Religion, politics, or ideology.
• Death, illness, grief, or loss as themes.
• Violence, threats, weapons in use, or scary imagery.
• Real brands, trademarks, or pop-culture references.
• Promises we can't keep.
• Requests for information from your child.
• Comments on body, weight, food, or appearance.

If something goes wrong

Write to hello@thimblepost.com. We refund the letter immediately, tell you what happened, and patch the process so it can't happen again.