Liner: AI search assistant

Liner

Contains adsIn-app purchases

About this app

Meet Liner AI, the accurate AI search you can rely on for anything. From daily questions to easy summaries and problem solving, you can rely on the most accurate information. With the latest AI models including GPT-5, Gemini, and Claude, you get every answer backed by reputable sources. Whatever you need, Liner gets you the best answer, rooted in facts.

Join over 13 million users incorporating Liner AI into their daily routines. With a quick question, you can prompt Liner AI to give you an answer you can trust.

Liner received a score of 95.3% on OpenAI's SimpleQA benchmark, meaning a higher likelihood of producing valid answers. Ranked among the top global gen AI consumer apps by a16z, you can count on Liner for any task at hand.

[SMART ASSISTANT]
Start with a simple question. Liner AI presents accurate information that's organized in a way that's easier to process. Get the key points quickly, with supporting information from real sources.

[SOLVE FROM PHOTOS]
Snap a picture for quick problem solving. No need for long prompts to explain what you need. Liner reads your photo and comes up with answers based on facts.

[CHAT WITH PHOTOS]
Ask about what you see. Liner's powerful AI interprets real-world objects so you can gain deeper knowledge, directed by your questions and follow-ups.
Download Liner for your research workflow, and sync your data across devices. Access advanced AI models, more Deep Research, and file uploads with Liner Pro.

[SUMMARIZE YOUTUBE]
Get summaries for YouTube videos. Liner gives you a brief overview, and key points with time stamps that allow you to go back to the most important moments. You can also ask follow-up questions to know more.

[ANALYZE FILES]
Upload a file to get a quick analysis. No more skimming, rereading, and getting lost in the information overload. Pick out and process relevant information fast.


[Terms of Service] [https://liner.com/terms]

Ratings and reviews

Was useful when you could highlight what you needed to highlight. Really liked being able to save and file things away. With the new liner it's all gone. The whole reason I was using liner is gone. Don't care for the new ai business. Now I have to figure out how to get my files out of this. Don't recommend this app anymore. It's not the original version.

Liner provides a good way to capture highlights as you read, but no good way to use the highlights. It should be easy to export your highlights for use with writing or a notes app. To do this in Liner, you have to hit a button over and over for every single highlight individually. It's an annoying waste of time. There’s no API or even a “download all” button. Without this, Liner is not for me.

I've given this app plenty of years and opportunity to grow and work out the kinks, but I'm done waiting. I was patient when my highlights were in the wrong places when I would go back to look over them at a later date. I was patient when my highlights wanted to move all over the page as I was highlighting. And now after the most recent update when I attempt to highlight, the highlighting button stays hidden behind the options to "cut/copy/select all". Time to move on to better things.

What’s new

[Scholar mode]

- Get answers only from trusted academic sources. Perfect for assignments, essays, and literature reviews.

[One-click citation]

- Instantly generate citations in APA, MLA, or Chicago style.

[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!