I hope it ist not a scammer app :) and y hope you use a firewall so that this information can't leak.
Use offline (the good ones work that way) delete afterwards etc.
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Or go to F-Droid and use SecScanQR. It's FOSS and reproducible.
Love Zeus. Can I close a core lightning channel and set the fee? In cmd it's kinda a pain with feerate='[x y]'