CalcuRun vs Run Your Stride

Tired of juggling apps, websites, and bookmarks to plan your race training? CalcuRun is an all-in-one solution — completely free, with no ads and no accounts. Newly redesigned in version 3.0 with a chronograph-inspired look and a dot-matrix display, CalcuRun helps you predict race times, plan splits, and dial in your workout paces. Features * Input a recent race or time trial and get accurate predictions across common race distances. * Use the "Other" race distance for non-standard events. * View splits for each race, in kilometers or miles. * Get workout paces based on your predictions. * Use the Calculator to plan an individual race — input a time or pace and calculate the other. * Sync your saved races and predictions across your iPhone and iPad with iCloud. * Redesigned iPad layout with a sidebar that takes advantage of the bigger screen. * Choose between the new dot-matrix display font or the system monospaced face. * Learn more about how the calculations are performed. Most importantly, your data is private. Calculations run entirely on your device. CalcuRun does not require an account, internet access, or any device permissions. iCloud sync is fully encrypted, and your data is never sent to a CalcuRun server. If you choose to follow any in-app links, only the URL is passed to your default browser.

Run Your Stride is the running pace calculator built for every runner. Whether you're chasing a PR, building a training plan, or just curious about your splits — Stride gives you the numbers you need, instantly. PACE CALCULATOR Enter any two of time, pace, or distance and Stride calculates the third. Planning a marathon? Find your goal pace. Finished a tempo run? See your exact time. Every result saves automatically so you can track your progress over time. RACE PREDICTOR Enter a recent race result and Stride uses the Riegel formula to predict your finish time across every standard distance — 5K, 10K, Half-Marathon, and Marathon. See your equivalent paces so you know exactly what effort to target on race day. PACE CHART A clean, scrollable reference chart showing finish times across all major race distances for every pace — per mile or per kilometer. No calculating required. TRAINING PACES Set your goal race and target time. Stride generates five calibrated training zones — from recovery runs to speed work — so every workout has a purpose. HISTORY Every calculation is saved automatically. Tap any entry to view full mile or kilometer splits, or share them with your coach or training partners. Clean design. No ads. No account required. Just the numbers that move you forward.