Polar is an AI browser for your Mac or PC. Its agent works inside your logged-in accounts for hours on research, sales and admin. Kiwi uses websites for you too, but you never sit at a browser: you text it, and it texts you first when something needs you.
At a glance
| Kiwi | Polar | |
|---|---|---|
| Where you use it | Messages on iPhone, WhatsApp on any phone | A desktop browser on Mac and Windows |
| How it reaches you | Texts you first when something needs you | Runs the workflows you schedule |
| Does the job | Yes, on any app or website, on your yes | Yes, in your browser, while you watch or take over |
| Price | Free to use | Free credits to start; $20 to $200 a month |
Sources: Polar's homepage, pricing page and privacy policy (effective 17 October 2026), all checked on 8 November 2026. Kiwi's privacy policy.
From your phone, not your desk
Polar is at its best when it's your main browser. Kiwi works from the thread you already check, wherever you are. Text it a job between meetings, and it does it and texts you back. More in hand off research by text.
Noticing before you ask
Polar runs what you set up, such as a daily email summary. Kiwi reads your calendar and email and decides when something needs you: a reply you owe, a renewal coming up, a meeting in an hour. Everything that can wait comes in one morning text.
What it costs
Polar's paid plans use credits, from $20 to $200 a month. Kiwi is free to use. More in Is Kiwi free?
To start, tap Text Kiwi on heykiwi.co.
Questions people ask
Is there an AI agent I can use from my phone instead of a browser? Yes. Kiwi is an AI assistant you text in Messages on iPhone or on WhatsApp, and it uses any website for you when you say yes.
Can I use Kiwi and Polar together? Yes. Kiwi works alongside the other AI tools you use, and looks after what happens away from your desk.
Is Kiwi free? Yes. Kiwi is free to use, with no credits to buy.