Mobile browser

A mobile browser is a web browser designed for use on a mobile device such as a mobile phone or PDA. Mobile browsers are optimized so as to display Web content most effectively for small screens on portable devices. Mobile browser software must be small and efficient to accommodate the low memory capacity and low-bandwidth of wireless handheld devices.[1] Typically, they were stripped-down web browsers, however, some recent mobile browsers can handle latest technologies also such as CSS 3, JavaScript, and Ajax.

A Wikipedia page displayed on an XHTML mobile browser on a Nokia 3220 (2004)

Websites designed so that they may be accessed from these browsers are referred to as wireless portals[2] or collectively as the Mobile Web. They may automatically create "mobile" version of each page, for example the Wikipedia website.

Underlying technology

The mobile browser usually connects via cellular network, or increasingly via Wireless LAN, using standard HTTP over TCP/IP and displays web pages written in HTML, XHTML Mobile Profile (WAP 2.0), or WML (which evolved from HDML). WML and HDML are stripped-down formats suitable for transmission across limited bandwidth, and wireless data connection called WAP. In Japan, DoCoMo defined the i-mode service based on i-mode HTML, which is an extension of Compact HTML (C-HTML), a simple subset of HTML.

WAP 2.0 specifies XHTML Mobile Profile plus WAP CSS, subsets of the W3C's standard XHTML and CSS with minor mobile extensions.

Newer mobile browsers are full-featured Web browsers capable of HTML, CSS, ECMAScript, as well as mobile technologies such as WML, i-mode HTML, or cHTML. To accommodate small screens, they use Post-WIMP interfaces.

History

The first mobile browser for a PDA was PocketWeb[3][4] for the Apple Newton created at TecO in 1994, followed by the first commercial product NetHopper released in August 1996.[5]

The so-called "microbrowser" technologies such as WAP, NTTDocomo's i-mode platform and Openwave's HDML platform fueled the first wave of interest in wireless data services.

The first deployment of a mobile browser on a mobile phone was probably in 1997 when Unwired Planet (later to become Openwave) put their "UP.Browser" on AT&T handsets to give users access to HDML content.[6][7]

A British company, STNC Ltd., developed a mobile browser (HitchHiker) in 1997 that was intended to present the entire device UI. The demonstration platform for this mobile browser (Webwalker) had 1 MIPS total processing power. This was a single core platform, running the GSM stack on the same processor as the application stack. In 1999 STNC was acquired by Microsoft[8] and HitchHiker became Microsoft Mobile Explorer 2.0,[9] not related to the primitive Microsoft Mobile Explorer 1.0. HitchHiker is believed to be the first mobile browser with a unified rendering model, handling HTML and WAP along with ECMAScript, WMLScript, POP3 and IMAP mail in a single client. Although it was not used, it was possible to combine HTML and WAP in the same pages although this would render the pages invalid for any other device. Mobile Explorer 2.0 was available on the Benefon Q, Sony CMD-Z5, CMD-J5, CMD-MZ5, CMD-J6, CMD-Z7, CMD-J7 and CMD-J70. With the addition of a messaging kernel and a driver model, this was powerful enough to be the operating system for certain embedded devices. One such device was the Amstrad e-m@iler and e-m@iler 2. This code formed the basis for MME3.

Multiple companies offered browsers for the Palm OS platform. The first HTML browser for Palm OS 1.0 was HandWeb by Smartcode software, released in 1997. HandWeb included its own TCP/IP stack, and Smartcode was acquired by Palm in 1999. Mobile browsers for the Palm OS platform multiplied after the release of Palm OS 2.0, which included a TCP/IP stack. A freeware (although later shareware) browser for the Palm OS was Palmscape, written in 1998 by Kazuho Oku in Japan, who went on to found Ilinx. Still in limited use as late as 2003. Qualcomm also developed the Eudora Web browser, and launched it with the Palm OS based QCP smartphone. ProxiWeb[10] was a proxy-based Web browsing solution, developed by Ian Goldberg and others[11] at the University of California Berkeley and later acquired by PumaTech.

Released in 2001, Mobile Explorer 3.0 added iMode compatibility (cHTML) plus numerous proprietary schemes.[12] By imaginatively combining these proprietary schemes with WAP protocols, MME3.0 implemented OTA database synchronisation, push email, push information clients (not unlike a 'Today Screen') and PIM functionality. The cancelled Sony Ericsson CMD-Z700 was to feature heavy integration with MME3.0. Although Mobile Explorer was ahead of its time in the mobile phone space, development was stopped in 2002.

Also in 2002, Palm, Inc. offered Web Pro on Tungsten PDAs based upon a Novarra browser. PalmSource offered a competing Web browser based on Access Netfront.

Opera Software pioneered with its Small Screen Rendering (SSR) and Medium Screen Rendering (MSR) technology. The Opera web browser is able to reformat regular web pages for optimal fit on small screens and medium-sized (PDA) screens. It was also the first widely available mobile browser to support Ajax and the first mobile browser to pass ACID2 test.

Distinct from a mobile browser is a web-based emulator, which uses a "Virtual Handset" to display WAP pages on a computer screen, implemented either in Java or as an HTML transcoder.

The following are some of the more popular mobile browsers. Some mobile browsers are really miniaturized web browsers, so some mobile device providers also provide browsers for desktop and laptop computers.

Usage share of mobile (smartphone and tablet) browsers for
Source Date Android
Browser		 Chrome Internet
Explorer		 Safari Opera Mini UC
Browser		 Samsung
Internet		 Other
Statcounter[13] June 20174.24%47.26%0.59%21.17%5.01%14.16%6.03%1.09%
Statcounter[14] June 201515.81%30.67%1.76%24.64%10.37%12.95%--3.79%
NetApplications[15] June 201422.77%16.67%2.01%47.06%7.82%----4.69%

Default browsers for Mobile and Tablet
Browser Creator FOSS Current layout engine Software license Notes
Amazon Silk Amazon.com Some Blink proprietary and LGPL Uses split architecture whereby all processing is performed on Amazon's servers
Android browser Google Yes WebKit BSD and LGPL Browser included with Android version 1.5 to version 4.1[16]
BlackBerry Browser BlackBerry Ltd Some Mango (ver 4.5, 4.6, 4.7, 5.0)
Webkit (ver 6.0+)		 proprietary and LGPL -
Blazer Palm No NetFront[17] proprietary installed on all newer Palm Treos and PDAs
Chrome Google Some WebKit, Blink (versions 28+) Freeware under Google Chrome Terms of Service, but uses components from the Chromium (web browser) project.[18] Installed as default on Google devices shipping with Android versions 4.1 (Jelly Bean) or higher
Clipper Palm No custom proprietary installed on Palm_VII series devices, or via Palm's Mobile Internet Kit
Dolphin Browser MoboTap No WebKit proprietary installed on all Bada
Firefox for Mobile Mozilla Yes Gecko, WebKit (iOS version only) MPL Currently released for Android and iOS, but default browser for Firefox OS devices (now discontinued)
Internet Explorer Mobile Microsoft No Trident proprietary on Windows Phone and Windows Mobile only
Iris Browser Torch Mobile Some WebKit proprietary and LGPL Acquired by Research in Motion - No longer supports Windows Mobile or Linux
Kindle web browser Amazon.com No NetFront proprietary Labeled "experimental"
Microsoft Edge Microsoft No EdgeHTML proprietary on Windows 10 Mobile
Myriad Browser Myriad Group Some Magellan (ver. 6.x)
Fugu (ver 7.x)
WebKit (ver 9)[19]		 proprietary and LGPL Acquired from Openwave in 2008
NetFront ACCESS Co., Ltd. Yes NetFront proprietary -
Nokia Series 40 Browser Nokia Some WebKit[20] proprietary and LGPL -
Opera Mini Opera Software No Presto proprietary Capable of pre-processing web pages and formatting for small screens
Opera Mobile Opera Software No Presto, Blink (versions 15+) proprietary Capable of reading HTML and can reformat for small screens
PlayStation Portable web browser Sony Yes NetFront proprietary -
Polaris Browser Infraware Inc. Some Lumi (Ver. 6.x)
WebKit (Ver. 7.x)		 proprietary and LGPL Nokia, Samsung, Kyocera and other phones sold in the US, China, South Korea, etc.
S60 web browser Nokia Yes WebKit LGPL on S60 phones (predominantly Nokia)
Safari Apple Inc. Some WebKit (WebCore) proprietary and LGPL[21] on iOS (iPhone, iPod Touch and iPad)
Skyfire Mobile Browser Skyfire Some WebKit proprietary and LGPL Renders Flash 10, Ajax and Silverlight content. Currently supports iOS and Android.
WebOS Browser

Palm

 Some WebKit proprietary and LGPL The last WebOS, 3.0.5, was released on January 12, 2012
Browser Creator FOSS Current layout engine Software license Notes

User-installable mobile browsers
Browser Creator Current layout engine Platforms Software license Notes
360 Web Browser Digital Poke iOS
Aloha (web browser) Aloha Mobile Ltd. WebKit iOS, Android Privacy focused browser
BOLT browser Bitstream Inc. WebKit Java ME, BlackBerry Proprietary Discontinued December 2011
Brave browser Brave Blink iOS, Android, Open-source Privacy-focused, built on chromium.
Cake Browser Cake Technologies, Inc. WebKit iOS, Android Swipeable mobile browser created in 2018[22]
Chrome Google WebKit, Blink Android, iOS Freeware under Google Chrome Terms of Service
UC Browser UC Mobile U3 (based on WebKit) S60, Java ME, Android, iOS, Windows Mobile, Bada Proprietary Freeware Proxy-rendering in Java and Symbian. U3 engine in Android.
Classilla Cameron Kaiser Clecko a modified Gecko Mac OS 8.6, Mac OS 9 MPL/GPL/LGPL Although desktop, uses a mobile user agent by default due to the older machines it services.
Deepfish Microsoft Windows Mobile Proprietary Proxy-rendering browser (Discontinued)
JioBrowser Jio WebKit, Blink Android Proprietary Secured Browsing
Micromax Browser Micromax Informatics Android
Dolphin Browser MoboTap WebKit Android, iOS
Firefox for mobile Mozilla Foundation Gecko, WebKit (iOS) Android, Firefox OS (discontinued), iOS MPL Includes HTML5 support, Firefox Sync, add-ons support and tabbed browsing.[23]
Links Twibright Labs PlayStation Portable GPL Unofficial port, requires custom firmware
Mercury Browser iLegendSoft, Inc. Android, iOS Freeware
Minimo Mozilla Foundation Gecko Linux, Windows CE MPL/GPL/LGPL Discontinued
NetFront ACCESS Co., Ltd. NetFront, WebKit Linux, S60, BREW, Android, Windows Mobile, Others Proprietary
Opera Mini Opera Software Presto Java ME, Android, Windows Mobile, iOS, BlackBerry, S60, Others Proprietary Supports most features of stand-alone Opera, but can run on less capable phones by offloading memory-intensive rendering to proxy server (based on Opera Mobile running on a server)
Opera Mobile Opera Software Presto, Blink Android, Maemo, BREW, S60, Windows Mobile From version 14 it is based on Chromium.
Pale Moon Moonchild Productions Android Proprietary Freeware Built on Firefox code
Pixo Sun Microsystems
Skweezer
Skyfire Skyfire Labs, Inc. WebKit (ver 2.x+), Gecko (ver 1.x) Android, iOS Supports Flash and Ajax. As of 2010-12-31, it no longer supports Symbian OS or Windows Mobile
Sleipnir Fenrir Inc WebKit Android, iOS, Windows Mobile
Steel WebKit Android Discontinued
Teashark Java ME Proprietary Freeware
Tristit Java enabled phones, BlackBerry
Vision Mobile Browser Novarra Java ME, BREW Proprietary
WinWAP Winwap Technologies Windows Mobile Proprietary
Browser Creator Current layout engine Platforms Software license Notes

Mobile HTML transcoders

Mobile transcoders reformat and compress web content for mobile devices and must be used in conjunction with built-in or user-installed mobile browsers. The following are several leading mobile transcoding services.

Defunct transcoders or sites with removed transcoding functionality
  • Google Mobilizer (Google Web Transcoder)[24] — Defunct since February 2016.[25][26] Replaced with Google Web Light.
  • Smartphone site — The last extant snapshot of the site is from 5 September 2012.
  • Device-Browser combinations on Cloud
  • Finch[27] — The last snapshot of a functional Finch site is from 28 February 2009.[28] This defunct service should not be confused with Finch (software). Finch the transcoder became Squeezr!Beta as early as 8 December 2009.[29]
    • Squeezr!Beta — The last functional Squeezr!Beta page is dated 13 February 2010.[30] As of 28 August 2010, Squeezr!Beta had closed;[31] the last page of Squeezr as authored by Adam Brenecki is dated 2 January 2012.[32] Since 2013, squeezr.net redirected to squeezr.it, which is a different service, and not related to Adam Brenecki.
  • Microsoft Bing[33] — the option to enable or disable "Optimize web pages for your phone" in "Search settings" is not visible in Bing's mobile version as of March 2018. (The mobile version can be accessed with a phone or tablet, or when setting a web browser to identify itself with a mobile-based user agent string.)
  • MobileLeap Transcoding Engine, by MobileLeap Inc. As of March 2018, web page source code includes JavaScript from the domain parking company Sedo-->)[34] — The site wouldn't allow entry without a cookie, so a typical crawler would be redirected to mlvb's cookiecheck page, the last snapshot of which is from 12 October 2017.
  • Mowser (mowser.com)[35] — Alternately marketed with the mowser.mobi domain name, which is now a permanent deadlink. The last snapshot of a working page is dated 22 September 2017.[36] As of 30 March 2018, the site has been shut down.[37]

See also

References
  1. "A Survey of Techniques for Improving Efficiency of Mobile Web Browsing", Mittal et al., CPE, 2018
  2. "Wireless portal Definition from PC Magazine Encyclopedia". Pcmag.com. 1994-12-01. Retrieved 2010-07-29.
  3. Gessler, Stefan; Kotulla, Andreas (1995). "PDAs as mobile WWW browsers". Computer Networks and Isdn Systems. 28 (1–2): 53–59. doi:10.1016/0169-7552(95)00093-6.
  4. Lauff, Markus; Gellersen, Hans-Werner (1997). "Multimedia client implementation on Personal Digital Assistants". Interactive Distributed Multimedia Systems and Telecommunication Services. Lecture Notes in Computer Science. 1309. pp. 283–295. CiteSeerX 10.1.1.6.6059. doi:10.1007/BFb0000360. ISBN 978-3-540-63519-2.
  5. "NetHopper 2.0 First true web browser for Newton". PenComputing Magazine. 2006. Retrieved October 13, 2009.
  6. "About Openwave". Openwave. 2009. Archived from the original on March 15, 2016. Retrieved June 8, 2016.
  7. "The Weather Underground brings weather service to mobile phone user". The Weather Underground. 1997. Retrieved February 26, 2009.
  8. "Microsoft Acquires STNC, a Leader in Digital Cellular Software" (Press release). Microsoft. 21 July 1999. Archived from the original on 13 May 2011. Retrieved 14 April 2011.
  9. "Microsoft Introduces Microsoft Mobile Explorer" (Press release). Microsoft. 8 December 1999. Archived from the original on 14 November 2010. Retrieved 14 April 2011.
  10. "Experience With Top Gun Wingman: A Proxy-Based Graphical Web Browser for the 3Com PalmPilot" (PDF). uwaterloo.ca. Retrieved 4 May 2018.
  11. "About Top Gun Wingman". daedalus.cs.berkeley.edu. Retrieved 4 May 2018.
  12. "Microsoft Mobile Explorer 3.0 Provides Tomorrow's WAP 2.0 Functionality Today" (Press release). Microsoft. 19 February 2001. Archived from the original on 1 April 2011. Retrieved 14 April 2011.
  13. StatCounter 2017
  14. StatCounter 2015
  15. NetApplications 2014
  16. Android 4.1 vs Android 4.2 — The Jelly Bean Brothers. January 23, 2013
  17. "palmOne Selects ACCESS NetFront Browser Engine to Power New Blazer 4.0 Mobile Browser, Expand Collaboration". ACCESS Co., Ltd. 2004-12-08. Archived from the original on 2010-05-28. Retrieved 2010-06-13.
  18. "FAQ - Google Chrome". Retrieved 7 May 2014.
  19. "Myriad -Mobile browsers". Myriad Group. 2010. Archived from the original on 2010-08-01. Retrieved 2010-12-15.
  20. "Series 40 Platform". Forum Nokia. 2010-06-04. Archived from the original on 2010-05-23. Retrieved 2010-07-29.
  21. "iOS Source Licenses". apple.com.
  22. "Cake raises $5 million for a swipeable mobile browser – TechCrunch". techcrunch.com. Retrieved 2018-06-03.
  23. "Mobile features". Mozilla. Retrieved 2012-06-26.
  24. "Google Mobilizer". google.com. Retrieved 4 May 2018.
  25. Solomon, Veena (2016-02-06). "What happened to Web Transcoder?". Mobile Websites | Webmaster Central Help Forum | Google Product Forums. Retrieved 2018-03-30.
  26. Schwartz, Barry (2016-02-15). "Google Web Transcoder Killed Off?". Search Engine Roundtable. Retrieved 2018-03-31.
  27. Purdy, Kevin (2008-10-13). "Finch Formats Web Sites for Really Slow Connections". Lifehacker. Retrieved 2013-03-30.
  28. Brenecki, Adam (2009). "Finch". Archived from the original on 2009-02-28.
  30. Brenecki, Adam (2010). "squeezr!beta". squeezr.net. Archived from the original on 2010-02-13.
  31. Brenecki, Adam (2010). "squeezr!beta is closed :(". squeezr.net. Archived from the original on 2010-08-28.
  32. Brenecki, Adam. "squeezr!beta is closed :(". squeezr.net. Archived from the original on 2012-01-02.
  33. "Bing". m.bing.com. Retrieved 4 May 2018.
  34. mlvb.net
  35. "About". Mowser. afilias.tech. 2011. Archived from the original on 2017-02-05.
  36. "mowser.mobi". Mowzer. 2011. Archived from the original on 2017-09-22.
  37. "Mowser.com has been shut down!". Republic of Ireland: Afilias Plc. 2017. Retrieved 2018-03-31.
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