companion.ink

How it works

Many e-readers don't support native apps, and their built-in browsers aren't powerful enough to support the latest and greatest chat interfaces like ChatGPT or Claude.

We've custom-built a lightweight chat interface site that's tailored to the unique strengths of e-readers, with a familiar page-based UI, adjustable font sizes, on-device chat history, a way of letting the model know what you're reading and how to respond, and more.

Test it for free by visiting (companion.ink) on your e-reader's browser!

1. Sign up

2. Receive your link

3. Chat on kindle

Features

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Minimalist UI

Minimalist E-Reader friendly UI with pagination, so you can scroll through your chat as you would pages of a book.

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Select your model

We support GTP4o and Claude.

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Minimalist UI

Minimalist E-Reader friendly UI with pagination, so you can scroll through your chat as you would pages of a book.

FAQ

What models do you support?
We currently support GPT4o and Claude Sonnet 3.5 (new). Let us know if you have a model you'd like us to support!
What ereaders do you support?
We aim to support any ereader with a web browser. You can test compatability by visiting companion.ink on your device.
How is usage calculated?
We currently look at the OpenAI pricing and charge you based on the number of tokens used. We also charge a small fee for the service.
Do you store my chats?
No, we don't store your chats. We only store the number of tokens used. All chats are stored on your device.
So is this a website, an app or what?
companion.ink is a website
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Pricing

companion.ink

$5 / mo

Chat with your favourite model for 1 hour

E-Reader friendly paginated UI

Custom prompt to let us know what you're reading

Persistent on-device storage of chat history

Markdown rendering

Chose your own model