Hi,
I just created this Blynk-SmartThings-Integration which lets you control all your DIY Blynk.io devices from Samsung SmartThings and natively from OneUI control panel.
You can set it up easily on Render or other app engine services for free.
Instructions are available on Readme.
Why this exists?
I found myself managing a large number of Blynk.io devices, but I grew tired of switching back and forth between apps just to control my devices. I wanted a unified experience where all my home automation devices lived in one place. By building this bridge, I’ve effectively “exported” my Blynk controls into SmartThings, allowing me to treat my Blynk devices as native SmartThings devices, control them via routines and use all available integrations via Smartthings.