What is the opinion of Reddit about the
HELM Audio Bolt DAC/AMP, USB-C Portable High-End DAC/Headphone Amplifier with MQA Playback. Mobile Studio Sound for Android, iOS and PC. USB-C to 3.5mm Audio, THX Certified?

This looked interesting. I flagged for future consideration.

https://www.amazon.com/Portable-Headphone-Amplifier-Playback-Certified/dp/B086GK94X2/ref=mp_s_a_1_3?crid=17IGOBZ1CDMJ8&dchild=1&keywords=helm+audio+bolt+dac%2Famp&qid=1630907322&sprefix=helm+aud&sr=8-3

I just ordered the Helm Audiobolt from Amazon to use with my iPad Pro & Roon/Tidal.

https://www.amazon.com/gp/product/B086GK94X2/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

Still in transit, so I can’t tell you how it is, but seems good on paper and the few reviews I have seen seem promising.

The dongles are pretty straightforward. The Helm Bolt will work with your phone. I don’t personally have have but it has decent reviews.

https://www.amazon.com/Portable-Headphone-Amplifier-Playback-Certified/dp/B086GK94X2/ref=sr_1_3?crid=WCH9BV3V3FBR&dchild=1&keywords=helm+audio&qid=1630539601&sprefix=helm+a%2Caps%2C194&sr=8-3