Liner: AI search assistant

Contains adsIn-app purchases
3.9
4.41K reviews
500K+
Downloads
Content rating
Parental guidance
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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]
Updated on
Feb 10, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, Personal info and 3 others
This app may collect these data types
Location, Personal info and 6 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

3.9
4.16K reviews
Arman Sarmast
December 28, 2025
I spent two days working in this app on a very important research project using scientific references. After I copied the link and logged back into the app the next day, I was shocked to see that everything was gone. It only showed me the title and a black screen. Practically all my work was destroyed for absolutely no reason. Giving it even one star feels too generous. It’s a complete scam.
8 people found this review helpful
Did you find this helpful?
Liner
December 30, 2025
To better understand and assist with your issue, we kindly ask that you reach out to the Liner Support Team at support@getliner.com. We’ll be glad to review the details and help you further.
Anthony Ononogbo
September 15, 2025
Honestly this app is a good one but of a truth it lags a whole lot. I also find it difficult to copy a written text that I am typing. Another issue with this app is that it doesn't display the full search on your workspace. Liner AI is superb when it comes to academic and scholarly searches but the developers need to fix the lagging issue and the inability to copy a written text or a text while typing.
7 people found this review helpful
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Liner
September 18, 2025
Thank you for your feedback! We’re sorry to hear that you experienced lag. We’re continuously working on improving the app’s performance, and your input helps us prioritize enhancements.
Vicky S (Cooksalot)
August 29, 2023
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.
63 people found this review helpful
Did you find this helpful?
Liner
August 30, 2023
Hi, Vicky. In the updated LINER, you can still highlight and save the parts you want to highlight. LINER is smarter and will help you. If you're not sure how to use it or have any other questions, please contact our help center. Thank you.

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!

App support

About the developer
주식회사 라이너
support@getliner.com
마포구 양화로 140, 8층 (동교동) 마포구, 서울특별시 04050 South Korea
+1 415-549-4929

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