
RunTriX
Lauf- & Triathlon-Rechner
About
What's New in RunTriX
1.3.9
August 11, 2026
What's New: -Account & Cloud Sync (Optional): Sign in with Apple or via email code. Activities and metrics now sync seamlessly between iPhone and iPad—creating an account is entirely voluntary, and the app continues to work as before without signing in. - Tire Pressure Calculator (Pro): Find the optimal pressure for speed, grip, and comfort—calculated separately for front and rear wheels based on system weight, weight distribution, and surface type (road, gravel firm/loose) for road and time trial bikes. - Race Power Calculator (Pro): Convert watts to target time (and vice versa) using a physics engine built for all IRONMAN bike courses. - Swim Jet Calculator (Pro): Calculate distance and pace for swim training against counter-current systems. - All calculators remain available as usual in both German/English and metric/imperial units. Improvements & Bug Fixes: - Significantly More Stable: Crashes are now gracefully handled and displayed on an error screen instead of force-closing the app. Additional crash reporting helps identify and resolve issues faster. - Smoother Sliders: Sliders in the calculators can once again be dragged smoothly.
MoreSubscription plans
RunTriX Pro
Jahresabo für alle Pro-Features. Jederzeit kündbar.
In-App Purchases
$17.99
RunTriX Pro
Einmalige Zahlung für lebenslangen Pro-Zugang.







