Yes, it’s called a Qudelix.
Is it a DAP? No. Is it better than every DAP on earth? Yes, because DAPs are a scam product category that converts the money of uninformed consumers into melted batteries and staggeringly abysmal operating systems / UI, endless lag, constant glitches and crashes, an obsolete device with only one job that’s really bad at its one job. The Qudelix costs 1/10th of what a comparable DAP worth buying with all of its features would and it’s much less likely to catch on fire.
You can get a LG V30 or v40 used for $40-$80 and use that as a DAP, it’s a legitimate audiophile level music player that just so happens to also be a phone. That would have all of the parametric EQ apps for Android along with a better DAC, better amp, more and better features, a better UI and OS and better comparability than any DAP under $500 and plenty over it.