Tinder App won't work on iPhone?

When I tap the Tinder app, the initial screen appears (white background with red logo at the center) for 10-12 seconds but then automatically shuts down.
Any indication on how to fix it?
An option is to delete the app and re-install it but I'm afraid I won't be able to read any messages / connections I received during the period I was unable to access Tinder (I know I'd still be able to read the old mssgs I received while it was working).

Thank you!

Added (1). (PS: Yes, I have the latest iOS 7.0.4)

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@Muhammad: thank you for your answer but what does "may your iphones os is low for the app" mean?

May your iphones os is low for the app

I stopped using tinder a few weeks ago… Too many douches for my liking lol. My coworker showed me cliqie.com and I'm a big fan of that over the others in terms of actually meeting people vs. Just entertainment. It has a different approach that feels less sketchy cause you and your friends essentially act as "wingmen". I like that it helps you find things to do too. Skout's okay too, but still has it's fair share of creepers

Same problem and not finding any good answer as to why or how to fix it

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