Apps are deleting themselves from my iPhone 6s?

I know this was stupid, but… I was on a school field trip to New York City a couple of weeks ago and I found some free Wi-Fi and STUPIDLY logged on. A lot of my apps then preceded to try and redowload themselves! And it just happened again…
Could I have a virus? If so, how can I get rid of it and stop my apps from messing up again?

I know this was stupid, but… I was on a school field trip to New York City a couple of weeks ago and I found some free Wi-Fi and STUPIDLY logged on. A lot of my apps then preceded to try and redowload themselves! And it just happened again…
Could I have a virus? If so, how can I get rid of it and stop my apps from messing up again?
Thanks! The apps are reloading because their publishers have issued new versions, and the phone decided it was okay to fetch them because Wi-Fi data doesn't cost anything. You can review the updates in the App Store app. By default, apps will regularly be upgraded with new versions.

By default, apps will regularly be upgraded with new versions.

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