HIIT Trainer vs twenty5

This app allows you to track your high intensity interval training workouts, without getting in your way. You can have vocal cues that guide you through your workout, or use the timer interface to know which exercise to do, how long to do it for, and what to do next. You can also create custom workouts and exercises, and control the timing of your exercises and rests. The workouts are structured to be high intensity interval workouts, but you can create your workouts to suite any type of workout you want to create. This app uses HealthKit to give you more insight into you workout. The data is not sent anywhere, and stays on your device.

Train smarter and progress faster with a customizable, privacy-first workout tracker — now with Apple Watch companion support. Design your own strength or fitness program, log workouts, and track progress over time from your iPhone or Apple Watch. The watch app makes it easy to start workouts, mark sets complete, and stay on track without reaching for your phone. Built for users who want full control without distractions or monthly subscriptions. * Create multi-day programs with custom workouts and exercises * Automatically increase weight or reps to support consistent progression * Track workouts directly from your Apple Watch or iPhone, with real-time sync between devices * Review detailed workout and exercise history in a clean list view * Visualize progress for each exercise * Privacy-focused: No personal data is collected.