I use neither of the apps that you listed, nor do I use an equalizer when listening to my library from Amazon or Google Play Music, but there are a bazillion in the Google Play Store including some that specifically mention Spotify so I'm sure you can find something there that works for you. Here's a random one that had good ratings https://play.google.com/store/apps/details?id=audio.sound.effect.bass.virtrualizer.equalizer
Let us know if you find one that works particularly well.
I've found EQ's don't really work well and cause a loss of overall sound quality on a phone, especially if you try to boost the bass frequencies. It's not something I'd bother messing with anymore.