Hark vs Monica: which one should you use?
Monica is the Swiss Army knife of AI sidebars: many models, image and video tools, research reports and a browser operator. Hark is closer to a single sharp blade for email, errands and follow-ups.
Choose Monica if you want one subscription for many AI models and creative tools, on desktop and mobile. Choose Hark if you mostly want an assistant that acts on the page with clear approvals, handles your email and remembers your deadlines — with no account and a simpler interface.
At a glance
Hark and Monica, side by side.
| Hark | Monica | |
|---|---|---|
| What it is | Chrome extension — an AI agent in the side panel | All-in-one AI sidebar: chat, write, translate, images, research, bots |
| Where it runs | Google Chrome on Windows, macOS, Linux and ChromeOS | Chrome and Edge extensions, plus desktop and mobile apps |
| Acts on websites | Yes — clicks, types and fills forms in your current tab | Browser Operator can navigate and complete multi-step tasks |
| Approval before final steps | Always, before send, submit, book, pay or delete | Depends on the task |
| Email help | Summaries, reply drafts and deadlines in Gmail & Outlook on the web | Writing and reply help in web mail |
| Tracker for orders & deadlines | Built-in Tracker for orders, bookings, bills and deadlines | No dedicated tracker |
| Account needed | No account — install and use | Account required |
| Free plan | 1 AI request per day, all modes | About 40 basic queries a day |
| Paid plans | $5.99/week (2-day trial), $14.99/month or $39.99/year | From about $8.30/month billed annually |
| AI models | OpenAI models, in Fast and Smart modes | GPT, Claude, Gemini and others |
Choose Hark if…
- You want fewer buttons and three clear modes
- You want approval before any final step
- You want orders, bills and deadlines tracked
- You prefer not to create an account
Choose Monica if…
- You want access to many model families in one place
- You want image and video generation or long research reports
- You want the same assistant on your phone
Breadth vs focus
Monica’s pitch is “everything in one sidebar”, and it delivers: chat with several models, write, translate, generate images and video, build custom bots, and run a browser operator. Its annual price is also lower than Hark’s. The cost of that breadth is a busier interface and a learning curve. Hark has three tabs and almost no settings; it bets that you will use an assistant more when it never makes you choose a tool first.
What Hark adds
Two things are hard to find elsewhere: the Tracker, which turns emails and confirmation pages into a dated list, and a strict approval rule for the agent. If those match how you work, Hark will feel purpose-built.
FAQ
Hark vs Monica: common questions
Is Monica cheaper than Hark?
On annual billing, Monica’s Pro plan is cheaper than Hark Pro at the time of writing, and it has a larger free allowance. Hark’s advantages are focus, approvals, the Tracker and no account.
Does Monica have an agent?
Yes. Monica offers a Browser Operator that can navigate sites and complete multi-step tasks.
Which models does Hark use?
Hark currently uses OpenAI models, offered as Fast and Smart modes.
More comparisons
Hand your next task to Hark.
Add it to Chrome, open the side panel and say what you need. It takes about ten seconds.
Free plan included · No account needed · Works in Chrome on Windows, Mac, Linux and ChromeOS