Visitors to music festivals like Lollapalooza or Pitchfork often have three goals: enjoying great live music, having fun with friends and staying safe and secure. In a crowd of thousands, this can be difficult, but there are plenty of apps that can help.

Planning which performers you would like to see at a festival can be a big help, and the Any.do app is a great way to do this. This is a to-do-list app, free for iOS and Android, that includes timed reminders and alerts to help you remember to go to a particular stage to see a particular artist.

The app has a clean and simple interface that is pretty easy to learn, and it has sharing options so you can send your plans to any friends joining you at the festival. Any.do has a lot of menus and options, so it is worth familiarizing yourself with it before you try to use it in a busy crowd, but the complexity allows the app to be useful in places besides music festivals.

Another helpful app is Songkick Concerts, which shows the acts appearing at festivals long before the event happens. The app, free on iOS, scans your music library to learn which performers you like. It then sends alerts if any of them will be playing soon or nearby.