I have several Android apps and a Foxwell. For the money the Foxwell is good bang for the buck. I used it to locate a faulty ABS sensor earlier this year and it removed any doubt as to which wheel was giving me problems in the E53. I had previously been using a Peake OBD & SRS for the E53.
BTW: I'm next door to Brighton MO and I have a buddy who is originally from Brighton UK! LOL

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2021 X5 xDrive40i
2015 X5 xDrive35i MSport
(Traded) 2013 X5 xDrive35i