Training Visualizer vs PBSplits

See what your Apple Health workout data actually says about your training. Training Visualizer transforms your workout history into clear trends, interactive charts and detailed statistics. Explore your progress, compare workouts and unlock deeper insights with AI — now optimized for iPhone Duo. **Understand your training over time** Explore weeks, months and years of training with interactive charts showing distance, duration, pace, heart rate, calories, elevation, steps and more. Discover patterns and see how your fitness develops. **Analyze your training with AI** Export structured workout and health data for detailed analysis using AI tools such as ChatGPT, or use quick AI-assisted analysis directly in the app. Get a clearer understanding of your performance and progress. **Compare workouts and periods** Browse your complete workout history, examine individual sessions and compare different periods. Identify changes in training volume, pace, intensity and consistency. **Optimized for iPhone Duo** Enjoy a layout designed to take advantage of iPhone Duo's unique display. Explore your training data, charts and workout statistics with an interface adapted for the larger screen. **Built for Apple Health** Training Visualizer works with your existing Apple Health and HealthKit workout data. No manual logging, separate training diary or complicated setup required. **Your data stays private** No account. No advertising. No tracking. Your workout history is not stored on our servers. You stay in control of what you choose to export or share. **Completely free. No subscription.** All features are available without recurring fees, advertising or hidden subscriptions. Whether you run, cycle, walk, hike or combine several activities, Training Visualizer helps turn years of workout history into meaningful insights you can actually use. Train smarter. Understand your progress. Make your data work for you.

PBSplits is a free app that finds your fastest split at every standard distance across your run history. Most personal-best tools only know your finish times. If you've never raced a 5K, they think you've never done one. PBSplits looks inside each run and finds the fastest continuous window for every distance on the ladder, so the best 5K you ever ran shows up even if it was the middle 5K of a 12 K training jog. Three tabs, and it opens on the first. Runs is every run in your Health data — pull to refresh, tap any one to open it, even the ones that never hit a standard distance. Trends plots a distance over time, as pace or as finish time, with a year-over-year view to lay this season against the last; it also holds the Power Curve, your season's distance against last year's, and your weekly run streak. Me is your season and all-time totals and the record book: the ladder from 400 m to 100 K, grouped Short / Road / Ultra. Tap any effort and you get the whole run — the route on a map with the record-winning segment highlighted, a mile-by-mile splits table, and pace and elevation charts. Tap a split and its window lights up on the map and across the charts, so you can see exactly where you found the time. Season and all-time crowns mark the efforts that took a podium. Great for: • Runners who want PBs from training, not just races • Tracking progress over a season or a year • Finding the fastest you've ever covered a 5 K, 10 K, half, or marathon • Comparing efforts across short, road, and ultra distances • Anyone whose watch knows more than they do What you get: • Best-effort engine that finds your fastest continuous split at every distance, not whole-run averages • Full distance ladder from 400 m to 100 K, grouped Short / Road / Ultra • Every run, browsable: pull to refresh, and open runs that never hit a standard distance • Trend charts, progression and year-over-year, by pace or by time, pinch to zoom either axis • Mile-by-mile splits: tap a split to highlight its window on the map and the charts • Your watch's own laps and workout intervals, each in their own table • Power Curve: your best pace at every duration, from 30 seconds to your longest run, switchable to heart rate, for a season or your own date range • Weekly run streak, with every run day's distance on a heatmap • Export any run as a GPX or FIT file • Map view per effort, with the winning segment highlighted on the route • Season and all-time crowns on podium efforts • Share cards for a new PB, a podium, or your whole record book • Pick your pace units: min/km or min/mi • PBSplits reads your workouts from Apple Health and never writes to it • Your run data stays on your device Free to download — no subscription, no account.