Interval Timer vs Sustain

Interval Timer is the fastest way to set up and run any timed workout — HIIT, boxing rounds, Tabata, circuits, CrossFit WODs, or custom intervals. Set your work time, rest time, and rounds in seconds. Then follow a clear full-screen countdown with large visuals, a progress bar, interval ring, sound effects, and haptic feedback. No clutter, no distractions — just your timer. FREE FEATURES Full interval timer with work, rest & rounds Fast setup — start training in seconds Full-screen countdown with large display Progress bar and interval ring Sound effects and haptic feedback Save up to 2 workout presets Recent workout history Basic workout insights PREMIUM FEATURES Unlimited saved workout presets Full workout history & progress stats Streak tracking and consistency insights Live Activities — timer on your Lock Screen Dynamic Island countdown Deeper training analytics BUILT FOR EVERY INTERVAL WORKOUT HIIT · Tabata · Boxing & MMA rounds · CrossFit & WODs · Circuit training · Mobility & stretching · Home workouts · Gym intervals · Pomodoro focus sessions Set up fast. Train focused. Stay consistent. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.notion.so/Interval-Timer-Privacy-Policy-32524021e4ad8078ae21f0a7dba52cd9

Sustain-X connects you with your personal fitness coach for a fully tailored training and nutrition experience. Each client is matched one-on-one with a qualified coach who designs your program, reviews your progress, and guides you through every check-in. Whether you're training at home or in a gym, Sustain-X keeps you connected with your coach and on track with goals that are unique to you. What's included in your coaching: - Personalized workouts — training plans built specifically for you by your coach. - Nutrition guidance — meal plans tailored to your goals and preferences. - Progress tracking — log workouts, weight, and bio-age tests; your coach sees your data in real time. - Check-ins — submit regular forms so your coach can adjust your program. - Direct messaging — chat with your coach for form feedback, questions, and support. - Community — connect with other clients and share the journey (included in some coaching plans). - Full Arabic support — the app is fully localized in Arabic and English. Sustain-X is a one-to-one coaching service. Your coaching package is arranged directly with your coach. The app is free to download and requires an active coaching relationship to access all features.