Which adapter should I buy?

Auto AI Diagnostics works with ordinary Bluetooth OBD2 adapters — no proprietary hardware. These are the two we actually use and test with at the shop. Both work on iPhone and Android.

iPhone owners: skip the $15 bargain-bin ELM327 clones — they use old-style Bluetooth that iPhones can't connect to. Both adapters below use Bluetooth 4.0 (BLE), which works on everything.

OUR PICK — WHAT WE USE AT THE SHOP iPhone ✓Android ✓

Vgate vLinker MC+

The adapter this app is developed and tested on — every BMW deep-scan in our validation work ran through one. Fast, rock-solid connection, handles the advanced module scanning perfectly. About $60.

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BUDGET PICK — STILL WORKS ON EVERYTHING iPhone ✓Android ✓

Vgate iCar Pro Bluetooth 4.0

Same manufacturer, smaller price. Covers all the core features — fault codes, freeze frame, live data, AI diagnosis. About $25–30.

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Already own an adapter? If it's Bluetooth and it worked with another OBD2 app on your phone, it'll almost certainly work with ours — just plug it in and hit Connect.

As an Amazon Associate, Auto AI Diagnostics earns from qualifying purchases. Prices shown are approximate — check Amazon for current pricing.