ScanWrench

CONNECT. DIAGNOSE. DRIVE. ScanWrench records what your vehicle actually reported - sixteen checks in one connected session with your own compatible OBD adapter, closed with a cryptographic receipt another phone can verify offline. Every finding is labeled measured, compared, inferred, or unavailable. Nothing is invented. THE 16-CHECK EVIDENCE SCAN Capture identity, stored, pending, and permanent codes, freeze frames, live readings from 62 standard PID formulas, readiness, Mode 06, calibration IDs, voltage, and per-ECU attribution. The session is sealed with SHA-256 and signed by a key generated on your device. HONEST BY DESIGN If a module cannot provide data, the record says so. No health scores, no invented coverage, and no universal-compatibility promises. Compatibility is tracked per exact configuration and earned from signed field sessions. DIAGNOSTIC COACH Organize hypotheses that cite their evidence and separate observed facts, likely causes, and unknowns. It is an evidence-supported path, not an automated diagnosis. BUY, FIX, COMPARE Buyer Challenge records the freshness and custody of a pre-purchase scan. FixProof compares before and after evidence. Parts research starts with an exact manufacturer part number, then applies listing, seller, return-policy, fitment, and authenticity gates. ReturnProof documents vehicle handoffs. YOUR DATA, THREE WAYS Use optional account features, keep everything on this device, or save nothing at all. Diagnostic records stay local unless a feature tells you exactly what will be sent and you choose to submit it. FREE INCLUDES Get 3 complete evidence scans each month, adapter checks, code reading and clearing with an engine-stopped safety ceremony, live-data preview, and offline verification. Test your adapter before paying anything. Works with compatible customer-supplied OBD adapters using Bluetooth LE or Wi-Fi on iPhone. ScanWrench does not sell hardware. Manufacturer-enhanced data appears only for an exact supported configuration; unavailable data is never guessed. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/