Training Visualizer vs AltoLoop

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.

Synchronize your Health data to the cloud and use it with other tools.