AutoSleep vs Lifesum

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.

Lifesum is a digital health and nutrition platform used by more than 60 million people to track food intake and build healthier eating habits. It offers multimodal meal logging - photo recognition, voice input, text entry, and barcode scanning - along with detailed macro and micronutrient breakdowns of protein, carbs, fats, fiber, and sugar.

• 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

• Multiple fast ways to log food (photo, voice, barcode)
• Detailed micronutrient breakdown, not just calories
• Large, established user base (60M+)
• Supports several structured diet plans in one app

• 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

• Full nutrition insights and meal plans require a paid Premium subscription
• No published monthly price on the main pricing page (subscription pricing varies by region/promotion)
• Primarily a mobile-first experience