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Building Mobile Apps with HTML, CSS, and JavaScript

by jonathanstark on Jun 13, 2010

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Hi I’m Jonathan Stark. I’m a software consultant from Providence RI. I do mobile app strategy, design, and development.
Preaching to the choir, but I want to start with the big picture. Mobile is huge and its growth is accelerating:
- Cell phone subscriptions to hit 5 billion on 2010
- 15% of phones sold in 2009 were smart phones
- 56% of public Wi‑Fi connections in 2009 were from mobile devices
The entry point into the mobile space is apps
There are three types of mobile apps that I think will remain relevant for a long time:
- Native apps (e.g. WebEx, SalesForce)
- Web apps (e.g. Gmail, Google Calendar)
- Command line apps (e.g. Google SMS, Twitter, Aardvark)
We could debate the pros and cons of each approach all day long. Ultimately, each has a glaring achilles heel.
The right one for you depends on your situation:
- Selling iPhone cases in U.S.? Native app
- Selling office supplies in North America? Web app
- Providing banking services in rural China? SMS app
I typically work with corporate clients who are trying to reach a really broad market with their apps. They want to be on iPhone, Android, and Blackberry at least.

- Platform is easy to learn, most orgs have web talent in house already.
- Web is a proven, stabile platform that works reasonably well across the widest range of devices.
- Host your app and email out the links.
- No approval process, no multiple app stores, no delay on bug fixes.
There are a number of javascript libraries that make building mobile web apps a lot easier. iUI was the first, but my lib of choice is jQTouch.
I want to drill down on a native vs web for a second because I know that there is a lot of confusion there.
Web apps can run 100% offline.
Actually, you don’t have to really pick between native and web. Single code base that can be deployed as a standalone web app AND deployed with addition functionality through the various app stores.
Cross platform mobile framework for building native mobile applications with html, css, and javascript.
I think this is the most pragmatic approach. If nothing else, it’s the most flexible. And the way things are growing at this point, flexibility is of the utmost importance.
Mention iPhone book signing and OFPS sites

13 Favorites

webinn Tags mobile 4 months ago
Kuntal Mehta 9 months ago
harisingh 11 months ago
nlonergan Tags mobile 11 months ago
Imants 12 months ago
UX LLC at UX LLC Tags development javascript mobile css html 1 year ago
Paul , Web Designer at http://tamarodesign.com 1 year ago
areyer 1 year ago
Darren Hill , Senior Creative Developer at Scripture Union 1 year ago
Indie Arsenal at Indie Arsenal Tags html css javascript mobile apps 1 year ago

Building Mobile Apps with HTML, CSS, and JavaScript — Presentation Transcript

Building Mobile Apps with HTML, CSS, and JavaScript Jonathan Stark
Huge & Growing • ~4.6 billion cell phone subscriptions • Smart phone share at 15% • 56% of public Wi‑Fi connections were from mobile devices
Mobile Apps
Types of Mobile Apps • Native apps • Web apps • Cmd line apps
Types of Mobile Apps • Native apps - Fragmentation • Web apps - Sandboxing • Cmd line apps - Discoverability
Types of Mobile Apps The approach that is best for you depends on your goals and target market.
Web Apps Win • Cheapest to produce • Most standardized • Easiest to distribute
jQTouch • jQuery plugin • Created by @DavidKaneda • Native CSS3 Animations • and tons more...
jQTouch Demo
Native vs Web
Considerations Native Web Depends Cosmetics X Functionality X Development X Testing X Distribution X Payment X Support X
Hybrid Apps PhoneGap gives developers the best of both worlds.
PhoneGap • Open source • Created by @Nitobi • Native app wrapper • Multiple platforms
Considerations Native Web Depends Cosmetics X Functionality X Development X Testing X Distribution X Payment X Support X
Considerations Native Web+PG Depends Cosmetics X Functionality X Development X Testing X Distribution X Payment X Support X
PhoneGap Demo
Conclusion "If you can build your app with HTML, CSS, and JavaScript, then you probably should." - Jonathan Stark
More Info • http://jonathanstark.com/books • http://jonathanstark.com/contact • http://jonathanstark.com/wdx

Building Mobile Apps with HTML, CSS, and JavaScript

by jonathanstark on Jun 13, 2010

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Building Mobile Apps with HTML, CSS, and JavaScript — Presentation Transcript