Liner
AI search with cited answers, research agents and a writer
What is Liner?
Liner is an AI search and research tool sold as three products on one subscription. Liner answers questions with a citation on each line and can run Deep Research reports, Liner Scholar adds agents for literature reviews, citation recommendations and hypothesis work over an index of more than 480 million papers, and Liner Write drafts and edits documents. It has web, desktop and mobile apps and browser extensions, plus a search API for developers.
Liner has a free plan. Paid plans start at $14.99 per month, billed annually ($17.99 billed monthly). See every plan
Good for
- People who want every line of an AI answer tied to a source
- Students drafting a literature review or looking for citations
- Users who want search, research and writing on one subscription
- Small teams: the Team plan covers 2 to 20 members
Worth knowing
- The free plan shows ads in answers and allows 1 file upload a day; the plan table lists 0 agent credits for it, though the FAQ mentions limited credits.
- Agents and external models spend credits: Pro includes 1,000 and Max 2,500, and one Literature Review request uses 40.
- The site's FAQ says Liner Scholar and Liner Write are supported only on desktop.
- Liner does not offer refunds; a subscription can be canceled before it renews.
Key features
- Cited answers
- Answers carry a citation on each line that opens the source. Follow-up questions continue the thread, and an answer can be turned into a mind map.
- Deep Research
- Gathers information on a topic and returns it as an organized report while showing its line of reasoning. Each request uses 40 agent credits.
- Liner Scholar agents
- Agents for academic work include Literature Review, Citation Recommender, Research Tracer, Hypothesis Generator and Peer Review. Each request costs between 30 and 80 credits.
- File uploads
- Upload papers and PDFs to get summaries and ask questions about them: 1 file a day on Free, 20 a day on Pro and unlimited on Max.
- Liner Write
- A writing workspace that drafts from a topic, shapes ideas into emails, newsletters and reports, and lets you search and edit in the same window.
- Search API and MCP
- Developers can call Liner's search and answer agents through an API, and MCP servers expose its web search and scholar search to other AI agents.
Liner pricing
- Starts at
- $14.99 per month, billed annually ($17.99 billed monthly)
- Free plan
- Unlimited Advanced Search with ads in the answers, 1 file upload a day of up to 25 MB and 10 Research Assistant uses a day.
- Free trial
- None listed
| Plan | Price | What you get |
|---|---|---|
| Free | $0 | Unlimited Advanced Search with ads in the answers, 1 file upload a day of up to 25 MB and 10 Research Assistant uses a day. |
| Pro | $14.99per month, billed annually; $17.99 billed monthly | 1,000 agent credits, 20 file uploads a day of up to 100 MB, ChatGPT, Gemini and Claude models, and no ads. Covers Liner, Liner Scholar and Liner Write. |
| Max | $29.99per month, billed annually; $35.99 billed monthly | Everything in Pro with 2,500 agent credits and unlimited file uploads of up to 200 MB each. |
| Team | $26.99per seat / month | For 2 to 20 members: everything in Max plus central billing, a workspace with admin controls and team data excluded from AI training. |
| Enterprise | Custom | Everything in Team plus a dedicated manager, onboarding sessions, audit logs and higher discount rates. |
Read from liner.com on Oct 5, 2026. Prices change, so confirm with Liner before you buy.
Ways to pay less
- Annual discountLower monthly rate with annual billing
The pricing page labels annual billing as saving 20%. Pro is $14.99 a month billed annually against $17.99 monthly, and Max is $29.99 against $35.99, about 17% less.
Stated on liner.com
How people rate the Liner app
4.4
out of 5 for the iPhone and iPad app
1,371 ratings on the App Store in the United States, read Oct 5, 2026. It rates the app, not everything the product does. See the listing
Works with
Liner alternatives
- Liner vs Perplexity
Free plan · from $17/mo
- Liner vs SciSpace
Free plan · from $12/mo
- Liner vs Elicit
Free plan · from $49/mo
- Liner vs Consensus
Free plan
- Liner vs Paperguide
Free plan · from $12/mo
Common questions
Is Liner free?
Liner has a free plan. Unlimited Advanced Search with ads in the answers, 1 file upload a day of up to 25 MB and 10 Research Assistant uses a day. Paid plans start at $14.99 per month, billed annually ($17.99 billed monthly).
How much does Liner cost?
Liner lists 5 plans. Free: $0. Pro: $14.99 per month, billed annually; $17.99 billed monthly. Max: $29.99 per month, billed annually; $35.99 billed monthly. Team: $26.99 per seat / month. Enterprise: custom pricing. Prices were read from liner.com on Oct 5, 2026.
What platforms does Liner work on?
Liner is available on Web, macOS, Windows, iOS and Android. It also has a browser extension.
Does Liner offer any discounts?
Liner publicly lists the following: Lower monthly rate with annual billing.
How is Liner rated?
Liner's iPhone and iPad app averages 4.4 out of 5 from 1,371 ratings on the App Store in the United States, as read on Oct 5, 2026. That is the store's rating of the app, not a score from us.
Does Liner have a Linux app?
No Linux app was listed when its pages were read on Oct 5, 2026. Liner is listed for Web, macOS, Windows, iOS and Android.
Is Liner open source?
Liner is not described as open source on its own site, as read on Oct 5, 2026.
Does Liner have an API?
Yes. Liner offers a public API, according to its own site.
What does Liner integrate with?
Liner's listing names ChatGPT, Gemini, Claude, Chrome and Microsoft Edge. A listing names up to eight integrations, so it may connect to more.
Who makes Liner?
Liner is made by Liner.
What are the alternatives to Liner?
The closest alternatives to Liner in our directory are Perplexity, SciSpace, Elicit, Consensus and Paperguide. Each one has a side-by-side comparison with Liner.
Sources for this page
The prices, plans, platforms and features above were read from these pages on Oct 5, 2026. What people say is linked where it appears.