Hark vs Fellou: which one should you use?
Fellou is an agentic browser built for long, autonomous jobs that run in the background. Hark is a hands-on agent for short tasks in your Chrome tab. Different tools for different tempers.
Choose Fellou if you want to hand off long research or data-gathering jobs to run in the background and do not mind a new browser and a credit system. Choose Hark if you want quick, supervised tasks in Chrome with a clear approval step and predictable pricing.
At a glance
Hark and Fellou, side by side.
| Hark | Fellou | |
|---|---|---|
| What it is | Chrome extension — an AI agent in the side panel | Agentic AI browser with background task execution |
| Where it runs | Google Chrome on Windows, macOS, Linux and ChromeOS | Its own browser for Windows and macOS |
| Acts on websites | Yes — clicks, types and fills forms in your current tab | Deep Action plans and runs multi-step tasks, including scheduled ones |
| Approval before final steps | Always, before send, submit, book, pay or delete | Shows a plan you can review |
| Email help | Summaries, reply drafts and deadlines in Gmail & Outlook on the web | Through the agent |
| 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 | Free plan with a small credit bonus (a few tasks) |
| Paid plans | $5.99/week (2-day trial), $14.99/month or $39.99/year | Credit-based plans from about $19–20/month |
| AI models | OpenAI models, in Fast and Smart modes | Several models |
Choose Hark if…
- You want tasks done in front of you, in your own tab
- You prefer flat pricing to credits
- You want email summaries and reply drafts
- You want to stay in Chrome
Choose Fellou if…
- You need long background jobs or scheduled tasks
- You want multi-site research and data collection
- You are comfortable budgeting credits per task
Foreground vs background
Fellou’s signature idea is a “shadow workspace”: the agent works in the background while you do something else, following a plan you can inspect. Hark keeps the work in the foreground, in the tab you are looking at, and that is the point — you can see each step and stop it instantly. For a ten-step errand, watching is reassuring; for a two-hour research crawl, background execution is the better fit.
Credits vs flat price
Fellou meters usage in credits whose cost varies with task complexity, which makes heavy use hard to predict. Hark Pro is a flat subscription with unlimited requests, subject to fair use.
FAQ
Hark vs Fellou: common questions
Is Fellou free?
Fellou offers a free plan with a limited credit bonus and paid plans with more credits. Check Fellou’s site for current pricing.
Can Hark run tasks in the background?
No. Hark runs a task in the tab where you start it, while the side panel is open, so you can follow and stop it.
Can Hark schedule tasks?
Not at the moment.
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