Top 164 Free Reference Apps
Reference applications provide internet users with a searchable collection of data that is general or based around a specific theme or interest. AppAppeal ranks all reference apps based on worldwide popularity.
Price range (p/month):
Answerbase.com supplies users with a list of tools that make it easier to build and manage a question and answer site...
Qhub.com provides users with an easy, pain free way to build an effective question and answer area for their website....
Pocket lets users quickly save web content they come across on any mobile device or computer. The items are added to ...
Diigo is a research and collaborative research tool on the one hand, and a knowledge-sharing community and social con...
Create knowledge bases and documents for onboarding, customer service and knowledge sharing
Scoop.it provides a place for users to curate their own web pages on their favorite topics.
Grovo.com is a learning platform that provides information about popular sites.
StumbleUpon is a discovery engine that encourages users to explore new URLs and share their favorite web pages. The a...
Delicious.com allows users to share and save their favorite bookmarks in one centralized place.
Netvibes provides users with a personalized homepage that supports over 200,000 applications. The user can pick and c...
Pipl is an easy to use people-focused search engine.
TinEye is a reverse image search engine. You can submit an image to TinEye to similar and modified versions on the web.
Ask questions, give answers and learn more about your friends.
Wikipedia is a free-content encyclopedia project based on an openly editable model.
Google is the most-used search engine on the Web.
Qwiki delivers information in a format that's quintessentially human – via storytelling instead of search.
BusinessReel.com is a search engine that aggregates business for sale listings.
StackExchange.com is a large network of question and answer sites on diverse topics.
ResearchGate is a social network intended for researchers, scientists and other intellectual individuals. Users can s...
Corkboard.it offers a unique way to collect, organize and share various items online. Users can add images, text, loc...
CliqSearch provides internet users with a convenient way to find reviews made by the people they know. The applicatio...
TrendSpottr provides internet users with a quick, easy way to see what’s popular online. The user can search for spec...
The Examiner presents internet users with a quick, compact way to find updates and information on any topic. Articles...
Pistach.io lets users store anything they find on the web. Users can organize bookmarks and share bookmark lists with...
Smart bookmarking app for time strapped readers.
InFocus.cc is an app that lets its users highlight and share their focus on the web.
Gimme Bar presents user with a new way to save web content. Users can drag and drop text, images and video to instant...
Start.io lets users create a start page full of their favorite links. The user can sort links and automatically see w...
Top Similar Sites helps users find websites that are similar to a specific URL. The results page provides extra infor...
iGoogle gives users a simple personalized homepage with a wide variety of customization options. Users can choose fro...
Netvouz is a social bookmark manager where you can store your favorite links online and access them from any computer.
Mahalo gives internet users a way to learn almost anything online. The website hosts a wide range of tutorial videos,...
My Yahoo is a customizable web page with news, stock quotes, weather, and many other features.
Symbaloo is a unique visual bookmarking tool that helps users keep their favorite links in order. Webmix collections ...
Squidoo gives users an easy way to share their point of view on any topic imaginable. Users can create pages, called ...
Newsvine gives users a place to discover local and national news content from many popular sources. Users can vote on...
Vi.sualize.us is an application that allows users bookmark their favourite images around the web and share them with ...
With Mister Wong you can search for the best websites, save them and share them wit others, completely free.
Snap is a website that adds context to websites by using links to acquire the most appropriate information that perta...
Ineedtoreadthis.com offers a way to keep track of articles that you want to read eventually. Kind-of like a to-do lis...
eHow.com provides users the ability to research, share, and discuss instructional solutions that help complete day-to...
Topsy is a real time search engine powered by the social Web.
Bing is the current web search engine from Microsoft.
Google Moderator is a tool that allows distributed communities to submit and vote on questions for presentations, tal...
Jigsaw is a large database of up-to-date contact and company information.
Betterfly connects people who want to learn, look and feel better with the people on their site who can help.
Social Mention is a social media search tool that aggregates user generated content from across the internet.
Protopage is your personal page where you can read your own selection of news and blogs, keep bookmarks, sticky notes...
Zootool is a service to bookmark your favourite images, videos, documents and links from all over the web.
MarkUp lets you draw on any webpage with a variety of tools to make a point, express your thoughts or just simply edit.