Changelog

Telemetry compare: overlay up to 10 laps on stacked channels with a shared cursor and zoom.

GPS traces on satellite imagery of the circuit, drawn over Apple MapKit with the required attribution.

Acceleration channels — longitudinal and lateral — plus a Max G circle.

Channel selection: choose which GPS channels are logged.

Engine logging (Track Settings Pro): RPM, throttle and more from an OBDLink CX, recorded alongside lap telemetry.

Lap Times opens on GPS; stopwatch and manual entry are still there.

Telemetry compare, the damper catalog and calculated cold pressures are free; external timing, engine logging, full geometry and Ask an Engineer stay Pro.

Stored GPS traces are read back for compare, so precise location is now collected and linked to your account for app functionality.

Acknowledgements updated for Amplify Swift (Apache 2.0).

Fixes and reliability improvements across the paywall and timing screens.

External GPS lap timing (Track Settings Pro): Dragy DRG70 / DRG70 Pro over Bluetooth, with a compact status line, signal-loss alerts, and no silent fallback to the iPhone mid-session.

RaceBox Mini / Mini S / Micro as a second external GPS module.

Live GPS recording screen: speed (km/h or mph), lap delta, track overlay, driven path in the live delta colour, this-run best flash, and a glanceable armed dash.

Per-lap GPS telemetry stored with each timed lap.

In-app Help & Guide from Settings, plus Learn more links on setup sections.

In-app feedback from Settings, delivered by email.

Damper manufacturer / product catalog instead of the hardcoded AST / Moton / KW / OEM list.

Car rename after creation.

Cached track maps so session outlines load faster.

Faster circuit list (lite catalog + fetch-by-id).

Car and circuit identity shown together on session and garage screens.

Starting cold pressure is calculated from the hot target (Gay-Lussac) instead of a stored delta; apply it to the car from the setup screen.

Setup tire type is the single source of truth (list and editor no longer disagree).

Sway-bar hardware is configured only on the car; setup cards show sway-bar state and damper hardware.

Circuits load from the API only — no bundled fallback file.

Confirmation / verification email uses the SVG logo and a redesigned template.

Splash hang after refresh tokens expire or a restored session is loaded. This is why 0.5.0 (68) could sit on the loading screen indefinitely; 1.1.0 recovers with Keychain credentials.

RaceBox device matching; live GPS marker snaps onto the track outline.

Auth sheets (sign-in / account) cannot be swipe-dismissed.

Mark Start/Finish no longer accepts a garbage course when the car is stationary.

iPad (all orientations) with landscape / iPad comparison tables.

Ask an Engineer with retrieval over the suspension guide and car-specific setup docs.

Track Settings Pro yearly subscription; Professional features and Ask an Engineer are gated.

Session comparison and an interactive lap-time graph with setup-change overlays.

Car make / model / engine from the shared catalog.

Per-corner scale weights, cold vs warm tire pressure, and per-axle tire size drop-downs.

Toe display in degrees or length.

Tread temperatures, save session setup back to car defaults.

Clone session setup into a new session.

Top-down suspension schematic with tread heat map.

Split-screen rules by device and orientation.

Car profile photo.

Local weather condition captured onto the session.

Schematic track outlines on the session screen.

~70 additional circuits, including Circuit de la Sarthe.

Circuits served with start/finish GPS from the app API.

Delete track data / refreshed sample-data generator.

Skill levels renamed Enthusiast / Professional.

Enthusiast gets all tire features and the full schematic; springs, geometry, sway bars, and weight stay Professional.

Engineer chat receives your unit preferences.

Subview navigation (engineer / laps / schematic).

Each lap stores setup and conditions.

Subscription disclosure and WeatherKit attribution; cancelled subscriptions show access-until.

Abandoned sign-up verification recovery.

Lap times disappearing when editing a session.

Home logo placement over a custom background.

Numeric fields clear on focus / format on blur; numpad dismisses on outside tap.

Email fields no longer auto-capitalize.

Alerts when tapping info and warning icons.

Multi-config track outlines recovered.

Cloud accounts without sign-up, car and session setup logging, weather on the session, auto-save, theme and units. The first public release.