Liner is an AI assistant that brings source-based AI search, investment news analysis, and document and PDF summaries together into one app. It delivers reliable answers with sources drawn from the web and academic papers, and analyzes how news affect the stocks you follow. With the latest AI models like GPT-5, Gemini, and Claude, move quickly from search to research, and investment insights.
[Source-based AI search]
Ask anything, and Liner searches the web and academic papers to deliver key answers along with their sources. You can verify the evidence behind every answer, making it useful for everyday searches as well as assignments, market research, and professional research.
- Get answers with links to original sources
- Explore and research by comparing multiple sources
- Dig deeper with follow-up questions
- Draw on the latest information and academic materials together
[Investment news and stock impact analysis]
Ask Liner how the news you care about affect your stocks. It breaks down news and market information that potentially impact each stock, so you can explore investment insights faster.
- Discover key news related to the stocks you follow
- See how news may affect your stocks
- Check investment information across multiple sources
- Inform investment decisions with key information at a glance
[The latest AI models in one app]
Use the latest AI models like GPT-5, Gemini, and Claude for whatever you're working on. Experience the AI features you need for search, research, and document analysis, all in the Liner app.
Liner scored 95.3% on OpenAI's SimpleQA benchmark and is used by more than 13 million users.
Download Liner now and start with source-based AI search, investment news analysis, and document and PDF summaries.
Liner Pro gives you access to advanced AI models and more Deep Research.
[Document and PDF summaries]
Upload a file, and Liner quickly summarizes long documents and PDFs into key points. Ask questions about your documents and find the information you need, cutting down your reading time.
- Summarize long documents and PDFs
- Ask questions about your uploaded files
- Quickly find key information and main points
- Support your understanding of assignments, work documents, and academic papers
[Ask with photos]
Take a photo of a problem, document, or object — or upload an image — and ask a question. Liner understands what's in the image and provides the explanations and answers you need.
- Solve and explain problems in photos
- Understand documents and text in images
- Translate and look up information
- Go deeper with follow-up questions
[YouTube video summaries]
Get concise summaries of long YouTube videos. Jump straight to the sections you need with key points and timestamps, and ask follow-up questions based on the video.
- Summarize video content with key takeaways
- Find the sections you need with timestamps
- Ask follow-up questions based on the video
[Terms of Service]
https://liner.com/term
Absolutely amazing AI, not-so-amazing app or pricing
MaxLinTX
I use a mac. Do not download the Liner AI app off the App store, just download it off the web. This app store one is based off the ipad and is super buggy, slow, and uncustomizable on macbook. However, if u do get the web download app version, this AI is amazing, with a twist. It is absolutely wonderful to use for research. Is the app very CPU-load heavy? Sure. But there is not a single AI that can beat this in terms of low hallucinations and accurate research. The second catch other than to not dowload the app from the app store is that this AI is expensive. 1000 credits a month for 15$ a month (paid yearly btw) equates to make 5-6 questions on the really advanced research stuff with Liner Scholar or Liner Write. The good thing tho is that Liner sometimes reimburses u credits (500 usually) if the ai agent doesn’t do something correctly or if u test some new features.
Hard not to think of this as a scam.
UssHuntly
Honestly, I used this service once and it was just ok. It wasn’t reliable enough for me to use on a regular basis. I meant to try and use it more often but my mind was someplace else. It was a terrible year for all of us. Up until then the service was adequate. Since it needed to be more reliable it only deserves 3.5 stars from me. However, my efforts to try and cancel my subscription have been completely ignored. There is no way to cancel the subscription on line. A subscription that I honestly do not remember opting into to renew. I received an email a few weeks ago warning me that my subscription was about to automatically renew. I had to cancel to avoid charges. The emails sent me to their website and gives you instructions to go to this link then click on this then that and when you get there there’s text that in order to cancel subscription you must submit the cancellation by email. I did. However, my credit card was still charged. I emailed them again asking about the charge and I once again expressed my desire to cancel and demanded a full refund. My email was ignored. On Friday, I opened a ticket using their customer service client online. It is now Monday and I have not heard one peep from them. Not one email, text, or smokes signals. Nothing. It is extremely difficult to not view their lack of response or acknowledgement as nothing but fraud. They leave me no choice but to dispute the charges with my credit card company.
Developer Response
I am so sorry for the inconvenience you had. Our customer service team always checks the inbox for inquiries from users, and most of them are read and replied within a few days. If you have not received any reply from us, could you please try sending an email again to contact@getliner.com?
Disgusting and biased .
Vcat11!
I cannot understand how me making a simple request to fix my grammar on Please correct my grammar and spelling don’t change the words “ that statement is so hurtful . Women and girls around the globe suffer just for the fact they they are women . Womanhood is not a costume , it is not transphobia it’s the fact. We are not cis women we are simply women . Woman are persecuted under Sharia law , women and little girls are mutilated for having female body parts . Women endure so much and there is nothing in this world more beautiful than the God given power to build life . We must protect our girls , period pains and disorders that come from it aren’t something that is “Gatekept “ it’s a grooling process . Women’s health care is overlooked , companies poison our tampons , women’s necessity’s are filled with chemicals that hurt our reproductive organs . Women’s menopausal healthcare is not taken seriously.” Cannot be done because it is deemed as hateful . I have written many opposing essays claiming the opposing argument and have never had an issue . This app is political and promotes propaganda. I am utterly disgusted as I am simply unable to understand where that essay was disrespectful. I love everyone . The AI has me links to me saying I am “gaslighting them “ and I find that unpleasant. I will submit a screen recording if you can provide a email to do so .I PAYED 200$ FOR THIS
Developer Response
We’re sorry that this made you feel uncomfortable. If possible, could you kindly send the thread link to our support team(support@getliner.com) so we can review it further?
New Restrictions to Basic Version
Sagerchatter
I have had the basic version for some time now. I rated it three stars due to equal my love/hate of the app. For function, it’s great - based on that alone I’d give it 4 stars. There are enough little things that would keep me from rating a full five stars, but nothing major. I used to use it quite a bit and was fine with the color limitations of the basic version, etc. I don’t utilize it enough to justify the subscription. However, recently - the last several months perhaps? - I’ve been limited to 7 highlights per article/doc. This is a deal breaker. I don’t use it enough to buy a subscription, not even at a fraction of what it costs. But b/c the app itself is not terrible, and the creators obviously have an vested interest making money in order to keep the app current and adding improvements, so I can’t pan the whole app just for that. For the purposes of a bare bones basic plan, I wish you’d raise the cap for highlights. I’m not a prolific highlighter, but I usually use it for length articles in order to pare it down to the bare minimum. I hit the limit every time now. I’ll keep checking in for awhile to see if they change the cap, otherwise I’ll look for another solution.
1. Scholar mode
- Get answers only from trusted academic sources. Perfect for assignments, essays, and literature reviews.
2. One-click citation
- Instantly generate citations in APA, MLA, or Chicago style.
3. Upload an image
Take a photo of printed materials and ask questions about the content.
Liner is loved by 10,000,000+ students and researchers across 50+ countries.
Download Liner today and start your smarter research journey.
If you love Liner, please rate us on the App Store!
Version 26.32.0
The developer, Liner Corp., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
Identifiers
Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
Identifiers
Usage Data
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Liner Corp.
Size
120.4 MB
Category
Productivity
Compatibility
Requires iOS 16.4 or later.
iPhone Requires iOS 16.4 or later.
iPad Requires iPadOS 16.4 or later.
Mac Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
