8fit vs AutoSleep

8fit combines custom workout routines with tailored nutrition plans to help users achieve their health goals. The app offers video‑guided exercises, progress tracking, and a library of healthy recipes, all designed for busy lifestyles. Available on iOS and Android, 8fit syncs across devices and provides daily reminders, community challenges, and integration with popular wearables to keep motivation high.

AutoSleep is a sleep-tracking app for Apple Watch and iPhone that records sleep automatically in the background, without requiring the user to start or stop a session. It uses heart rate, motion, and (where available) blood oxygen and wrist temperature data to estimate sleep stages, sleep quality, and a running sleep debt total called the sleep bank. The app integrates with Apple Health and HomeKit, offers a smart alarm that wakes users during a lighter sleep phase, and includes an add-on companion app, AutoSnore, for snore detection. It is sold as a single one-time purchase on the App Store rather than a subscription, and processes data on-device rather than through a cloud account.

• Highly customizable workout and meal plans
• Extensive library of video‑guided exercises
• Free tier offers substantial functionality
• Integrates with major health platforms and wearables

• One-time purchase price with no ongoing subscription fees
• Fully automatic tracking that does not require remembering to start or stop a sleep session
• Detailed metrics including sleep stages, SpO2, respiration rate, and wrist temperature on supported hardware
• On-device processing with no account or login required for basic use

• Premium subscription required for full recipe library
• Limited offline access in free version
• Some users report generic suggestions after prolonged use

• Requires an Apple Watch for automatic tracking; iPhone-only use is far more limited
• Advanced metrics like SpO2 and respiration depend on specific newer Apple Watch models
• Interface and terminology (sleep bank, sleep debt) have a learning curve for new users