# Razorline: GPS OBD & Lap Timer — Car Dashboard, Tours & Racing > Car Dashboard, Tours & Racing (iPhone/iPad app by Federico Gusmeroli.) - Source: https://appshunter.io/ios/app/razorline-gps-obd-and-lap-timer/id6785917563 (this page in markdown: same URL + `.md`) - Developer: [Federico Gusmeroli](https://appshunter.io/developer/1881094497) - Category: Sports, Navigation - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 15.0 · 46 MB - Languages: American English, French (France), German (Germany), Italian, European Spanish - Released: 2026-08-02 - Data updated: 2026-09-17 - User reviews in markdown: https://appshunter.io/ios/app/razorline-gps-obd-and-lap-timer/id6785917563/reviews.md ## What is Razorline? Razorline combines a GPS lap timer, driving dashboard and OBD2 telemetry for track days and closed circuits. Record laps and sectors, follow your live delta and review your driving data. Use your phone GPS without an OBD adapter, or try the built-in simulator before connecting your vehicle. LAP TIMING AND GPS • Draw, record or import a route and set start, finish and sector lines. • View current lap, best lap, theoretical best and live sector times. • Record Tours and revisit their routes, telemetry and speed heatmaps. • Use your iPhone GPS. Keep the app and screen active while recording. OPTIONAL OBD2 TELEMETRY Connect a compatible ELM327 adapter via BLE or Wi-Fi. See supported values such as RPM, throttle, coolant temperature and vehicle speed, and read diagnostic trouble codes. Available data depends on your vehicle and adapter; not every car supports every sensor. DASHBOARD, REPLAY AND CHALLENGES Follow speed, RPM, G-force, lap time and route on the dashboard and HUD. Review sessions with synchronized maps and charts, compare laps and vehicles, or follow reference ghost laps and share Razorline challenge files. The HUD editor, advanced analysis, comparisons and ghosts require Premium. VEHICLE CARE Keep profiles for cars or motorcycles and track tire mileage, component distance and time since service. Add distance manually when you drive without the app. Wear percentages are estimates based on your own distance/time limits and recorded use, not measurements of a part’s physical condition. Tires and engine oil maintenance are included for free. Premium unlocks the other maintenance components and custom items. Without Premium those cards show a blurred preview; existing data and automatic counters are preserved. VIDEO AND EXPORTS Optional phone-camera and compatible GoPro recording are beta features. Import a video and add synchronized telemetry in the editor. Create 9:16 highlights from your own photos or videos. Premium includes camera tools and advanced CSV, GPX, VBO and NMEA exports. FREE AND PREMIUM The free plan includes lap timing, maps, basic OBD2, tires, engine oil maintenance, up to 2 saved routes, 1 vehicle and 1 saved Tour with review and heatmap. Razorline Premium adds unlimited saved routes, vehicles and Tours, full component maintenance, HUD editing, ghosts and challenges, advanced replay, comparisons, exports and OBD2 tools. Subscription terms are shown before purchase. Restore purchases in the app and manage or cancel your subscription in Apple Account settings. NO ACCOUNT REQUIRED Available in English, Italian, German, French and Spanish. Recorded sessions stay on your device unless you choose to export or share them. Configure the app while stationary. Use performance features only on closed circuits or private areas closed to traffic. Follow local laws and never interact with the phone while driving. GPS and OBD readings depend on hardware and conditions and do not replace certified instruments, inspections or professional diagnosis. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Razorline Premium | $3.99 | per month | ## Version history (last 5 releases) ### 1.0.5 — 2026-09-07 What's new: - New (beta): catalog of preset famous race tracks to choose from - Smoother, more accurate live GPS tracking during Tours, even in tricky conditions - External Bluetooth GPS support is now available on iPhone too - Fixed several iOS map issues: camera tilt glitches, occasional freezes, and an oversized accuracy circle - New screen orientation option (portrait, automatic, or landscape) - Improved OBD data handling and tire/component condition tracking - Higher default video recording resolution - Small visual polish and general stability fixes Thanks for driving with Razorline! ### 1.0.4 — 2026-08-31 • Added French and Spanish language support. • Bug fixes and general improvements. ### 1.0.3 — 2026-08-30 Razorline 1.0.3 makes challenges complete, visible and ready to race. • Redesigned Challenges hub with search, route previews, opponent records, personal times and sector data • Challenge import and sharing now preserve lap times, sectors and telemetry even when a messaging app renames the file • New challenge replay area with imported telemetry, linked local videos and opponent-versus-personal ghost comparison • The rival ghost now appears on the full map as well as the HUD and minimap • Challenge cards scroll fully, keeping Share and other actions clear of the navigation bar • More immersive 60° map view and no arbitrary fallback city while GPS is unavailable • Timed sessions recover more reliably after the app briefly enters the background • Completed Tours immediately offer to save the route • Fixed music play, pause and next controls and blocked empty Start actions when no route is selected • Additional stability and usability improvements ### 1.0.2 — 2026-08-12 Razorline 1.0.2 improves live timing, circuit sessions and replay analysis. • Smoother telemetry comparison and replay playback, including at 4x speed • More reliable replay zoom and a clearer Telemetry Comparison button in Replay • Correct theoretical-lap totals and predictive delta behavior • Improved grid starts: lap 0 before the line, accurate lap and total times, and automatic completion after the selected laps • Speed traps now update to the vehicle record and also appear on the Live Dashboard • Clearer live STOP controls and less intrusive start-line guidance, including a warning when the car must move back behind START • Consistent replay names and device-local date and time • Additional timing, map and stability fixes ### 1.0.1 — 2026-08-11 Razorline 1.0.1 makes the cockpit clearer and more consistent across the app. • Refreshed typography, spacing, cards, dialogs, controls and empty states • Larger touch targets and improved accessibility for key actions • Map markers now stay correctly anchored during pan and zoom, with clearer map controls • Fixed Premium entitlement checks when a subscription expires • Saved Tours beyond the free limit are now correctly locked until Premium is restored • Ghost mode now reflects the current Premium status • Fixed an onboarding translation issue and other minor bugs ## More apps by Federico Gusmeroli - [Shift Helper: Work Scheduler](https://appshunter.io/ios/app/shift-helper-work-scheduler/id6759839515) All apps by Federico Gusmeroli: https://appshunter.io/developer/1881094497 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-17.*