Chatbots and Letrin
A chatbot waits to be asked. Letrin brings the answer.
You can upload the letter to ChatGPT or Gemini and ask. Letrin uses an AI model too; the difference is not the model but the system around it: privacy, a fixed structure and follow-up.
The photo is not uploaded.
Text recognition happens on the phone; personal details are covered before anything is sent. The server does not store the text or use it for training.
No need to write a question.
The same structure for every letter: sender, request, amount, deadline, to do.
No need to describe the reply.
The reference and the amount are taken from the letter; the formal Dutch draft is ready, with the English next to it.
Follow-up, not chat.
Your letters and their deadlines in one place; reminders and calendar, without an account.
The same letter, two ways
[letter.jpg uploaded]
Can you explain this letter?
And by when?
Can I pay in instalments?
The photo, your name and your BSN are in the chat history. A question you did not ask goes unanswered.
FromBelastingdienst, the tax office
Askedpay the rest of your 2025 income tax
Amount€ 214,00
Deadline29 August
If you are latecollection interest is added
To docheck the amount, pay, ask for instalments if you cannot
Draft reply and reminder with one tap.
Side by side
| Chatbot | Letrin | |
|---|---|---|
| Explains the letter | Yes | Yes |
| No account needed | No | Yes |
| The photo stays on your phone | No | Yes |
| Personal details covered before sending | No | Yes |
| Text not stored, not used for training | Depends on settings | Yes |
| No need to write a question | No | Yes |
| Amount and deadline in the same place every time | No | Yes |
| Draft reply | If you describe it | Yes |
| Reminders and a letter archive | No | Yes |
| Questions beyond the letter | Yes | No |
The rows about chatbots summarise how common services generally behave; storage and training details differ by service and by your account settings.
Which one, when
A chatbot is enough
- General questions
- Text with no personal details
- When you want to ask at length
Letrin
- Letters from official organisations
- Documents with your name, BSN or IBAN
- A deadline that must be tracked
Try it on your next letter.
The first three letters are free. No account needed.

