How to develop an "app"

I have been developing simple websites for clients on Windows using MS Expression Web. Now a client wants me to develop an "app" for handheld devices so that people can:
1. Submit questions
2. browse/search archives of previously asked questions

I haven't a clue where to begin - I don't even have a handheld device.

Are there instructions on how to do this? Can it be created in a Windows 7 environment? Can the testing of the final product be done without an iOS  or android device?

Thank you
Lev SeltzerAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

David Johnson, CD, MVPOwnerCommented:
Development Platform
ios requires a mac
android can be done on windows.

This page may be of interest:

There are emulators available but the final product should be tested on the actual device.
David Johnson, CD, MVPOwnerCommented:
1. Submit questions
2. browse/search archives of previously asked questions

Do you currently have a web page that does this?
from you description, the "app" doesn't require any device-specific features, so it seems appropriate to continue using mobile web.

you do need to style it a bit differently (see e.g.  and many many others), you can even get very close to the native UX.
10 Tips to Protect Your Business from Ransomware

Did you know that ransomware is the most widespread, destructive malware in the world today? It accounts for 39% of all security breaches, with ransomware gangsters projected to make $11.5B in profits from online extortion by 2019.

Lev SeltzerAuthor Commented:
Thank you for these initial tips.
Current website is at
I will wait a bit to see if there are other suggestions before awarding points.

Thank you.

this should be the easy task: you detect at least the OS from USER_AGENT and then can customise the page.

native app (and we're talking cross-platform here) is huge overkill for such task.
you can create a shortcut to the www by oening the website on the device and saving it

to my mind html 5 is going to be the thing to learn for smart phones
Instead of developing an "App" for a device in which you will have to create an app for every platform, windows phone, palm, blackberry, android and iOs you can develop a mobile website

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Lev SeltzerAuthor Commented:
Great answers so far. I am discussing this with the client, and trying to sway him to develop a mobile version of the website, rather than an App.
I hope to award points shortly.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Smartphone Programming

From novice to tech pro — start learning today.