GPS Race Timer vs LayMatic

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

LayMatic lets you adjust the factory air suspension of compatible Mercedes-Benz vehicles—right from your iPhone. Set the perfect stance for daily driving, photo shoots, or track days, then restore stock height anytime. No permanent wiring or coding: plug in, adjust, unplug. Requires the LayMatic OBD-II dongle (sold separately). What you can do Lower in seconds: Easy Mode adjusts all four corners; Front/Back controls axles; Manual enables per-wheel fine-tuning. Save & restore: Your vehicle’s original values are backed up on first connect so you can return to stock anytime. Multiple vehicles: One Key licenses one car; add additional Keys to enable more cars in your garage. Non-invasive setup: No cutting, no “lowering links,” and no permanent wiring. How it works Create an account and sign in. Plug the LayMatic OBD-II dongle into the OBD port (under the steering wheel on most Mercedes-Benz models). Open the app and connect; on first connection you’ll assign a Key to the vehicle. Adjust height using Easy, Front/Back, or Manual modes. Unplug the dongle when you’re done. Compatibility Works with most Mercedes-Benz models equipped with factory air suspension (e.g., AIRMATIC, Air Body Control). Not compatible with hydraulic systems such as Active Body Control (ABC)/Magic Body Control. For the latest list of supported models, see our compatibility page on the LayMatic website. Safety & legal Use only when parked on a level surface with the parking brake engaged. Do not operate while driving. Ensure any changes comply with your local laws and inspection requirements (e.g., TÜV). Adjustments are reversible, but may affect warranty or assistance; use at your own risk. Requirements LayMatic OBD-II dongle (sold separately) and an active LayMatic account. A compatible Mercedes-Benz vehicle (see compatibility on our website). Bluetooth and internet access for initial setup and updates. Trademarks Mercedes-Benz, AIRMATIC, and related marks are trademarks of their respective owners. LayMatic is an independent product and is not affiliated with or endorsed by Mercedes-Benz.