Need a hand? Email hello@kinletter.com. We read every message and aim to reply within 2 business days.
Frequently asked
Is KinLetter free?
Yes, KinLetter is completely free.
How private is private?
Your letters are private by default. People in your circle can read the letters you send to them, and you can also create a private read-only link for a single letter when you want someone without KinLetter to read it. That link is unguessable, expires after 14 days, and does not expose your profile or other letters. See our Privacy Policy for the full picture.
How does the AI work?
Writing help is optional. When you ask KinLetter to help draft a letter, your notes are sent to an AI model that returns a polished draft in your voice. You choose the length, such as Short, Standard, or Long, and can edit everything before sending. We keep AI in service of the letter, not as the main product.
Does my voice get sent anywhere?
No. Speech-to-text runs on your device. The audio never leaves your phone. Only the transcribed text is sent to KinLetter once you submit.
Can someone outside my circle read a letter?
Only if you choose to share that specific letter. KinLetter can create a private read-only link for one published letter, including its photos, so a family member or close friend can read it without creating an account. The link expires after 14 days and does not give access to your other letters.
How do I invite someone to my circle?
Open the app and manage your circle from the circle or profile area. Once someone accepts your invitation, you can send letters to each other inside KinLetter. If they are not ready to sign up yet, use Send and share link to share one letter first.
Can I change my username?
No. Usernames are permanent and set once at signup. Your display name can be updated anytime from Profile → Settings.
I forgot my password.
On the sign-in screen, tap Forgot password? and enter your email. We'll send a reset link.
How do I delete my account?
From inside the app: Profile → Settings → Delete Account. For details on what gets deleted, see our Account Deletion page. If you can't access the app, email hello@kinletter.com from the address on your account and we'll handle it.
I think I found a bug.
Email hello@kinletter.com with what happened, what you expected, your device model, and your iOS or Android version if you know it. Screenshots help a lot.
How can I send feedback or suggest a feature?
Same email: hello@kinletter.com. We read everything and a lot of the product has come from notes like yours.
Still need help?
Email hello@kinletter.com and we'll get back to you.