reviews of 3456 free web apps
in 181 categories

Top 161 Free Reference Apps

1 to 50 based on popularity

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.

Google Search
1.
Popularity rank 1
AppAppeal rating 5/5
Free plan available
Mobile apps
Iphone_app
Android_app
Google is the most-used search engine on the Web.
Wikipedia.org
2.
Popularity rank 6
AppAppeal rating 5/5
Free plan available
Wikipedia is a free-content encyclopedia project based on an openly editable model.
Bing
3.
Popularity rank 16
AppAppeal rating 4/5
Free plan available
Mobile apps
Iphone_app
Android_app
Bing is the current web search engine from Microsoft.
Stack Overflow
4.
Popularity rank 80
AppAppeal rating 3/5
Free plan available
Stack Overflow is a programming questions and answers site.
About.com
5.
Popularity rank 81
AppAppeal rating 3/5
Free plan available
About.com is a resource for content that helps you to solve the large and small needs of everyday life.
Reddit
6.
Popularity rank 115
AppAppeal rating 3/5
Free plan available
Mobile apps
Iphone_app
Android_app
Windows_phone_app
Reddit provides users with a simple way to explore new areas on the web. The site lists a huge collection of unique w...
eHow
7.
Popularity rank 130
AppAppeal rating 4/5
Free plan available
Mobile apps
Iphone_app
Android_app
Windows_phone_app
eHow.com provides users the ability to research, share, and discuss instructional solutions that help complete day-to...
Answers.com
8.
Popularity rank 158
AppAppeal rating 2/5
Free plan available
Answers.com is a Wiki-like Q&A site combined with free online dictionary, thesaurus, and encyclopedias.
Ask.fm
9.
Popularity rank 163
AppAppeal rating 3/5
Free plan available
Ask.fm is a questions and answers platform.
StumbleUpon
10.
Popularity rank 190
AppAppeal rating 5/5
Free plan available
Mobile apps
Iphone_app
Android_app
StumbleUpon is a discovery engine that encourages users to explore new URLs and share their favorite web pages. The a...
Squidoo
11.
Popularity rank 335
AppAppeal rating 4/5
Free plan available
Mobile apps
Iphone_app
Squidoo gives users an easy way to share their point of view on any topic imaginable. Users can create pages, called ...
Stack Exchange
12.
Popularity rank 430
AppAppeal rating 5/5
Free plan available
StackExchange.com is a large network of question and answer sites on diverse topics.
Examiner
13.
Popularity rank 622
AppAppeal rating 5/5
Free plan available
The Examiner presents internet users with a quick, compact way to find updates and information on any topic. Articles...
Quora
14.
Popularity rank 757
AppAppeal rating 3/5
Free plan available
Mobile apps
Iphone_app
Quora is a continually improving collection of questions and answers created, edited, and organized by everyone who u...
ChaCha
15.
Popularity rank 980
AppAppeal rating 3/5
Free plan available
ChaCha is a dynamic question and answer website that lets the user text, call or submit questions online. The applica...
Fixya
16.
Popularity rank 1,008
AppAppeal rating 2/5
Free plan available
FixYa is a place for all your product needs, from helping you decide on products to buy, to getting personal tech sup...
Scoop.it
17.
Popularity rank 1,106
AppAppeal rating 3/5
Free plan available
Scoop.it provides a place for users to curate their own web pages on their favorite topics.
Instructables
18.
Popularity rank 1,290
AppAppeal rating 4/5
Price range (p/month): $1.95 - $3.95
Free plan available
Instructables.com gives internet users a place to learn how to do almost anything.
Delicious
19.
Popularity rank 1,362
AppAppeal rating 5/5
Free plan available
Mobile apps
Android_app
Delicious.com allows users to share and save their favorite bookmarks in one centralized place.
Blekko
20.
Popularity rank 1,402
AppAppeal rating 2/5
Free plan available
Mobile apps
Iphone_app
Android_app
Blekko provides a service to search the web by using slashtags. Slashtags search only the sites you want and cut out ...
Diigo
21.
Popularity rank 2,411
AppAppeal rating 4/5
Free plan available
Mobile apps
Iphone_app
Android_app
Diigo is a research and collaborative research tool on the one hand, and a knowledge-sharing community and social con...
Topsy
22.
Popularity rank 2,560
AppAppeal rating 4/5
Free plan available
Topsy is a real time search engine powered by the social Web.
ZoomInfo
23.
Popularity rank 2,831
AppAppeal rating 3/5
Free plan available
ZoomInfo offers business information on people and companies in the world.
MyLife
24.
Popularity rank 2,899
AppAppeal rating 2/5
Free plan available
MyLife offers you access to people profiles with advanced search and filtering options.
Netvibes
25.
Popularity rank 3,064
AppAppeal rating 5/5
Pricing (p/month): $499.00
Free plan available
Mobile apps
Iphone_app
Android_app
Netvibes provides users with a personalized homepage that supports over 200,000 applications. The user can pick and c...
DuckDuckGo
26.
Popularity rank 3,405
AppAppeal rating 4/5
Free plan available
Mobile apps
Iphone_app
Android_app
DuckDuckGo.com is a search engine.
TinEye
27.
Popularity rank 3,521
AppAppeal rating 5/5
Price range (p/month): $200.00 - $1,500.00
Free plan available
Mobile apps
Iphone_app
TinEye is a reverse image search engine. You can submit an image to TinEye to similar and modified versions on the web.
WolframAlpha
28.
Popularity rank 3,784
AppAppeal rating 3/5
Free plan available
Mobile apps
Iphone_app
Android_app
Wolfram|Alpha's goal is to make all systematic knowledge immediately computable and accessible to everyone.
Newsvine
29.
Popularity rank 3,927
AppAppeal rating 4/5
Free plan available
Newsvine gives users a place to discover local and national news content from many popular sources. Users can vote on...
Answerbag
30.
Popularity rank 4,151
AppAppeal rating 2/5
Free plan available
Answerbag.com is a question and answer site owned by Demand Media.
Pipl
31.
Popularity rank 4,305
AppAppeal rating 5/5
Free plan available
Pipl is an easy to use people-focused search engine.
Pocket
32.
Popularity rank 4,518
AppAppeal rating 5/5
Free plan available
Mobile apps
Iphone_app
Android_app
Ipad_app
Pocket lets users quickly save web content they come across on any mobile device or computer. The items are added to ...
Formspring.me
33.
Popularity rank 4,912
AppAppeal rating 5/5
Free plan available
Mobile apps
Iphone_app
Android_app
Windows_phone_app
Ask questions, give answers and learn more about your friends.
O’Reilly Answers
34.
Popularity rank 5,176
AppAppeal rating 3/5
O'Reilly Answers is a community site for sharing knowledge, asking questions, and providing answers.
ResearchGate.net
35.
Popularity rank 5,447
AppAppeal rating 5/5
Free plan available
ResearchGate is a social network intended for researchers, scientists and other intellectual individuals. Users can s...
Helium
36.
Popularity rank 6,223
AppAppeal rating 3/5
Free plan available
Helium.com helps users find information and gives writers a place to show off their abilities.
Instapaper
37.
Popularity rank 6,522
AppAppeal rating 5/5
Price range (p/month): $0.00 - $4.99
Mobile apps
Iphone_app
Smart bookmarking app for time strapped readers.
123people
38.
Popularity rank 6,715
AppAppeal rating 3/5
Free plan available
Mobile apps
Iphone_app
123people is a real time people search tool. You can find images, videos, phone numbers, email addresses, social netw...
iFixit
39.
Popularity rank 6,792
AppAppeal rating 3/5
Free plan available
Mobile apps
Iphone_app
iFixit is a free repair manual that you can edit.
Ffffound!
40.
Popularity rank 6,964
AppAppeal rating 3/5
FFFFOUND! is a web service that allows users to post and share their favorite images found on the web.
Scour
41.
Popularity rank 7,343
AppAppeal rating 3/5
Free plan available
Scour's purpose is to bridge the gap between searchers and relevant results by providing a platform for users to vote...
Symbaloo
42.
Popularity rank 7,515
AppAppeal rating 4/5
Free plan available
Mobile apps
Iphone_app
Symbaloo is a unique visual bookmarking tool that helps users keep their favorite links in order. Webmix collections ...
Ixquick
43.
Popularity rank 7,631
AppAppeal rating 4/5
Free plan available
Mobile apps
Iphone_app
Ixquick is a search engine that uses metasearch capabilities to provide users with search results from other search e...
Jigsaw
44.
Popularity rank 8,087
AppAppeal rating 4/5
Free plan available
Jigsaw is a large database of up-to-date contact and company information.
BlogHer
45.
Popularity rank 8,777
AppAppeal rating 2/5
Free plan available
At BlogHer.com, you will find conversations led by women in social media.
PeekYou
46.
Popularity rank 9,061
AppAppeal rating 3/5
Free plan available
Mobile apps
Iphone_app
PeekYou's people search engine allows you to find, contact, and track anyone online.
AOL Answers
47.
Popularity rank 9,181
AppAppeal rating 2/5
Free plan available
AOL Answers is a place to share, explore and discover knowledge.
InfoBarrel
48.
Popularity rank 9,194
AppAppeal rating 3/5
Free plan available
InfoBarrel.com is a shared revenue social media community. Content developers can publish their material and create a...
myLot
49.
Popularity rank 10,770
AppAppeal rating 1/5
Free plan available
Join one of the hundreds of thousands of discussions already started by myLot members, or start your own.
vi.sualize.us
50.
Popularity rank 13,222
AppAppeal rating 4/5
Free plan available
Vi.sualize.us is an application that allows users bookmark their favourite images around the web and share them with ...

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Most popular reference app per country
http://www.appappeal.com/apps/reference
www.appappeal.com
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2013-05-21T17:51:14Z
184.73.212.60
sha1:O3URPTANKGETPOXZDZH472JCID2NZ4QA
<urn:uuid:e64f4333-37d5-4fc7-8b68-c2d4b09220a0>
http://www.appappeal.com/apps/reference
response
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robots: classic
hostname: ip-10-60-113-184.ec2.internal
software: Nutch 1.6 (CC)/CC WarcExport 1.0
isPartOf: CC-MAIN-2013-20
operator: CommonCrawl Admin
description: Wide crawl of the web with URLs provided by Blekko for Spring 2013
publisher: CommonCrawl
format: WARC File Format 1.0
conformsTo: http://bibnum.bnf.fr/WARC/WARC_ISO_28500_version1_latestdraft.pdf