So I use an apk from a private forum but Im pretty sure you can find some on mobilism (I cannot vouch for them as I dont specifically know if that apk I use cam from there). The modded app pretty much just remove ads and allows unlimited skips and stuff of that sort. It pretty much gives all the perks of the paid subsciption but free. You can find many of them around but the thing is just making sure its not spyware or adware (this is where knowing where/how/who modded the app is important). I looked at mobilism, there are a few on there, but I have never used apks from mobilism before or knoq anything about how well/safe they run