kitio.aiFellou vs PdfGPT.io
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Fellou starts at $19/mo and PdfGPT.io starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Browser agents
- Deep search reports
- Background workspaces
- Form filling
- Logged-in site actions
- PDF summaries
- Page-linked citations
- Chat with multiple PDFs
- Exam notes
- Quizzes and study guides
- Large file support
| Feature | Fellou | PdfGPT.io |
|---|---|---|
| Best for | Agentic AI browser for deep research and automated web tasks | Ask questions across PDFs and get page-linked answers |
| Category | Productivity | Productivity |
| Pricing model | Freemium | Freemium |
| Starting price | $19/mo | See pricing page |
| Free plan | Yes | Yes |
| Made by | Fellou | PdfGPT.io |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
Fellou starts at $19/mo and PdfGPT.io starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
4 plans
Free
Free
- 1,000 Sparks new-user bonus (~4 tasks)
- 2 scheduled tasks
Plus
$19/mo
- 2,000 Sparks/month (~8 tasks)
- 3 scheduled tasks
- Priority support
- Early access to new features
Pro
$39.90/mo
- 5,000 Sparks/month (~20 tasks)
- 5 scheduled tasks
- Priority support
Ultra
$199.90/mo
- Unlimited Sparks (limited time)
- Unlimited scheduled tasks
- Unlimited concurrent tasks
- Exclusive priority support
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Fellou
- Runs tasks in the background
- Good research reports
- Free tier to try
- Agents can be slow
- Younger and less proven
PdfGPT.io
- Citations let you verify answers
- Handles very long documents
- Does not train on your files
- Free use is limited
- Plan details not visible on the homepage
Which one should you choose?
Choose Fellou if you want:
- Runs tasks in the background
- Good research reports
- Free tier to try
Watch out: agents can be slow.
Choose PdfGPT.io if you want:
- Citations let you verify answers
- Handles very long documents
- Does not train on your files
Watch out: free use is limited.
Fellou vs PdfGPT.io FAQ
What is the difference between Fellou and PdfGPT.io?
Fellou: Agentic AI browser for deep research and automated web tasks. PdfGPT.io: Ask questions across PDFs and get page-linked answers. Both are productivity tools.
Is Fellou or PdfGPT.io cheaper?
Fellou starts at $19/mo and PdfGPT.io starts at See pricing page. Check both pricing pages for current plans.
Do Fellou and PdfGPT.io have free plans?
Fellou: Yes. PdfGPT.io: Yes.
Who makes Fellou?
Fellou is made by Fellou.
Who makes PdfGPT.io?
PdfGPT.io is made by PdfGPT.io.
Which should I choose, Fellou or PdfGPT.io?
Choose Fellou if you value runs tasks in the background and good research reports. Choose PdfGPT.io if you value citations let you verify answers and handles very long documents.