About to cancel my premium subscription. Due to skipping during playback. Tried everything

[aftaufer]

Hey,

I have an iPhone 4 with Spotify Premium. The songs are always skipping when I use offline mode. It is just about as bad as a skipping CD. I have reinstalled numerous time, switched streaming quality, turned off gapless playback and deleted my history in Safari. I am going to cancel my subcription really soon. I wish I didn't have to as I have enjoyed having tons of great music at my fingertips.I have a feeling that my phone is too old. Is there a version spefically for the iPhone 4?

Any other solutions?

Here is my info:

Spotify version 5.7.0.1055

Iphone 4

ios 7.1.2