kitio.aiLinfo.ai vs MARK•R
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Linfo.ai has the lower starting price: about $8 a month, against $8 for MARK•R.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Article summaries
- YouTube summaries
- PDF summaries
- Mind map view
- Browser extension
- Highlight-to-ask interface
- Page-aware answers
- GPT-3.5 and GPT-4 access
- Draft summaries and white papers
| Feature | Linfo.ai | MARK•R |
|---|---|---|
| Best for | Summaries and mind maps from articles, PDFs and YouTube | Browser plugin to question highlighted web text with AI |
| Category | Productivity | Productivity |
| Pricing model | Freemium | Freemium |
| Starting price | $7.99/mo | $8/mo |
| Free plan | Yes | Yes |
| Made by | Linfo.ai, Inc. | MARK•R |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
Linfo.ai has the lower starting price: about $8 a month, against $8 for MARK•R.
Free plan
Cheapest paid plan
Top plan
Free trial
4 plans
Plus
$7.99/mo
- Priority support
- Priority generation queue
- Most advanced model
Pro 12-month
$7.99/mo billed yearly
- Unlimited article summaries
- Unlimited PDF and YouTube summaries
Pro 3-month
$11.99/mo billed quarterly
- Unlimited article summaries
- Unlimited PDF and YouTube summaries
Pro 1-month
$14.99/mo
- Unlimited article summaries
- Unlimited PDF and YouTube summaries
3 plans
Free
Free
- 15 calls per day
- GPT-3.5 model
- 2,000 highlighted characters
Standard
$8/mo
- 100 calls per day
- GPT-3.5 and GPT-4
- 2,500 highlighted characters
Pro
$12/mo
- 150 calls per day
- 5,000 highlighted characters
- 2,000 output characters
Prices in USD, checked Oct 29, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Linfo.ai
- Handles web pages, PDFs and videos
- Mind map and outline views
- Cheaper long-term Pro plans
- Free tier limits are not stated
- Plan names and limits are hard to compare
- Best model sits on paid plans
MARK•R
- Works inline on any web page
- Uses the whole page as context
- Cheap paid tiers
- Free plan allows only 15 calls a day
- Tight character limits on each request
- GPT-4 calls count as 20 GPT-3.5 calls
Which one should you choose?
Choose Linfo.ai if you want:
- Handles web pages, PDFs and videos
- Mind map and outline views
- Cheaper long-term Pro plans
Watch out: free tier limits are not stated.
Choose MARK•R if you want:
- Works inline on any web page
- Uses the whole page as context
- Cheap paid tiers
Watch out: free plan allows only 15 calls a day.
Linfo.ai vs MARK•R FAQ
What is the difference between Linfo.ai and MARK•R?
Linfo.ai: Summaries and mind maps from articles, PDFs and YouTube. MARK•R: Browser plugin to question highlighted web text with AI. Both are productivity tools.
Is Linfo.ai or MARK•R cheaper?
Linfo.ai has the lower starting price: about $8 a month, against $8 for MARK•R.
Do Linfo.ai and MARK•R have free plans?
Linfo.ai: Yes. MARK•R: Yes.
Who makes Linfo.ai?
Linfo.ai is made by Linfo.ai, Inc..
Who makes MARK•R?
MARK•R is made by MARK•R.
Which should I choose, Linfo.ai or MARK•R?
Choose Linfo.ai if you value handles web pages, pdfs and videos and mind map and outline views. Choose MARK•R if you value works inline on any web page and uses the whole page as context.