Hey there, Sandra,
After reading your post, I see that your daughter was looking at the Spotify app on her iPhone, and shortly after she started to use it, you saw a charge from the iTunes Store. I understand that you're wondering if Spotify is connected with the iTunes Store. I'm happy to provide you with some information!
While Spotify itself is not tied to iTunes or Apple directly (they are their own company and service), you are able to download the Spotify app from the iOS App Store onto an iPhone, iPad, or iPod touch. The app itself is free, and you can even use it for free to listen to music. However Spotify does offer subscriptions to their service which includes features the free service does not. If your daughter signed up for one of those subscriptions directly through the iOS app, you would be billed through the iTunes Store, not Spotify.
You can verify whether or not she did sign up for a Spotify subscription through the iTunes Store by checking her purchase history: See your purchase history in the App Store or iTunes Store - Apple Support. If she did, you can get information on managing the subscription, including cancelling it, here: View, change, or cancel your subscriptions - Apple Support.
Have a wonderful day!

Jul 25, 2018 7:52 PM

Discover more music with personalized playlistsPremium:. Download tunes and play offline. Spotify linked app.

Spotify Windows Store App

App Store And Itunes Store

With Spotify, you can listen to music and play millions of songs and podcasts for free. Stream music and podcasts you love and find music - or your next favorite song - from all over the world. Discover new music, albums, and podcasts. Search for your favorite song, artist, or podcast. Enjoy music playlists and an unique daily mix made just for you. Make and share your own. I just got a MacBook Pro and I can’t find Spotify on the App Store × Close We use cookies to give you the best online experience. By using our website you agree to. ‎Create stations based on the music you love, all for free with Spotify Stations. Select an artist, genre or even decade and Spotify Stations does the hard work for you. Plus, the more Spotify Stations learn about what you love to listen to, you’ll get even more personalized recommendations. To listen to music on the go, download Spotify from the Google Play or Apple app store. Spotify on Android with Google Play Spotify on iOS with the AppStore. To listen on other devices, a separate app may or may not be required, depending on the device. For more information, see how to play on your speakers, car, TV, or games.

How to sync spotify mobile. Then you can click 'OK' to finish adding tracks.Step 2: Choose Output FormatsClick the Setting button on the top-right to choose output format. You can copy and paste the link on the URL window and click 'Add'. In Convert settings, you can choose output format (MP3, AAC, FLAC or WAV), output quality. Click button or click center of NoteBurner, then you will see a pop-up window that indicates you to copy and paste the playlist link from Spotify.

Spotify Itunes App Store