This is so wrong at so many places. Web App vs Native App (Infographic)
alterian.com
alterian.com
There are many valid cases where native is the better approach and others where web-app is best ! Any decent developer will do their homework and select appropriately.
BTW - many of the 'problems' high-lighted on the graph apply to both Native and Web-apps and there are some additional ones with Web-apps but I can't be bothered to spell them out. Bah !!
If you have to ask this question, the answer is probably no.
1. Website can be malicious, too. Phishing, clickjacking, XSRFs, browser exploits - there's a lot of nonpleasant stuff on the web.
2. Websites can't manage memory and other resources at all. Sure, you, for example, can try to measure performance and disable UI effects, but that's another story.
3. In a same way, users must have enough of free space where browser's application cache is kept, too. Or you'll strain network re-downloading same data over and over again. This is especially annoying for roaming and other areas with high $/MiB cost or countryside with slow GPRS connectivity.
4. Website can fail, too. And if this is not some user-local network problems, this is more disasterous than a crash of a single copy of app on someone's device - your "webapp" works for noone at that time.
5. And, obviously, in a same way as removing the app, users could delete the bookmark for your service.
If you're an incredibly well-selling web app, you STILL have to market and spend and shout to get yourself known. No matter how well you're doing, your word of mouth still probably doesn't beat Apple's Top 25 board.
I've used the Quora web app occasionally. But if I had actually had a Quora app on my home screen, I'd use it far more frequently.
"Article not found"
Or at least, I am, on my iPhone right now.
There's definitely a touch of irony there.