Hi Flying finn,
Not sure for iPhone but I have the Carista app for android & it will only allow DPF regen enable after purchasing the subscription.
I am assuming it should work remotely as it connects via Bluetooth connection. I might trial this to confirm.
VAGDPF is also a very useful phone DPF monitoring app.
VCDS is also a useful tool to have (Diagnostics)
Check out the following thread
DPF questions
Lucas_R may be able to provide more info regarding the iPhone side.
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