GPS Race Timer vs Haltech Connect

Measure acceleration times such as 0–60 mph, 60–120 mph and 1/4 mile directly with your iPhone — accurately and without extra hardware. The app is designed so it doesn’t need to be operated while driving; you just set everything up beforehand while stationary. Measurements then start automatically — when the target speed is reached or when a start is detected. You can save results locally on your iPhone and, if needed, export them or transfer them to other devices. Preset timers: 60 ft, 1/8 mile, 1/4 mile, 1/2 mile, 1 mile, 0 – 60 mph, 0 – 120 mph, 50 – 75 mph, 60 – 120 mph, 0 – 100 km/h, 0 – 200 km/h, 80 – 120 km/h, 100 – 200 km/h. All timers are, of course, fully adjustable. The free version measures up to two times per run. How to use the app: Check the timer settings on the start screen. If everything looks good, place your iPhone in the car where it has good GPS reception and is held securely, then start the acceleration test. You can adjust the timer configuration in the Settings screen (just tap the relevant timer). Then return to the race screen and follow the previous instruction. Optional PRO version (in-app purchase): 1. Up to four timers in parallel (instead of two) 2. Precise determination of elevation differences 3. Simulation of a Sportsman start and reaction-time measurement 4. No ad banners

Monitor channels, read and clear diagnostic trouble codes, see and change settings. Perform initial setup of your Rebel ECU. This app allows you to connect to your Wi-Fi enabled Haltech Nexus ECU. In it you can view any channel as you would do within NSP, and change most settings and table contents. It also allows you to view diagnostic trouble codes (DTCs) and clear them, as well as configuration errors such as a setting value out of range. You can choose from a range of metric and imperial units. If you have a Rebel ECU, you can use this app to access the setup wizard to configure your ECU for the first time. Note: Nexus firmware version 1.26 or later is required to use the mobile app. This can be updated using NSP.