GPS Race Timer vs Dilution Calculator

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

Dilution Calculator takes the guesswork out of mixing. Enter your dilution ratio and container size and get the exact water and solution amounts you need - instantly. Whether you're a professional car detailer, valeter, or painter, or just someone who wants precise results every time, Dilution Calculator is the quickest way to get the numbers right. Features • Instant results - calculate at a glance, wherever you are • Supports millilitres, litres, and fluid ounces • Simple UI mode for a clean, distraction-free experience • Optional result rounding for easy-to-measure values • Light and Dark Mode support • Remove ads with a one-time purchase Questions or feedback? Reach us at support@samuelblackburn.com or use the Feedback option on the Settings page.