Sensor Data Pro vs PreTip

Sensor Data Pro helps you capture high-quality sensor recordings from your iPhone or iPad for testing, field work, and analysis. Use it to record motion, location, microphone level, barometer, and magnetometer data in one session. Add event markers as you record, review sensor charts by type, inspect per-axis values, and export complete session files for downstream analysis. Built for reliable long sessions: - Live preview before recording - Configurable sensor selection and sample rate - Background-aware recording behavior with explicit gap annotations when iOS limits sensors - Session analytics dashboards with min/mean/max and timeline context - CSV and JSON export from persisted recordings Your recordings stay on-device by default.

PreTip makes tipping simple, fast, and accurate. Just scan your receipt and instantly get the right tip — calculated based on the pre-tax amount. No more over-tipping on tax. No more second-guessing. PreTip is designed for real-world receipts, where things aren’t always clear. Key Features: • Scan receipts and auto-detect subtotal, tax, and total • Calculate tips based on pre-tax amount • Detect when gratuity is already included to help avoid double tipping • Support service fees and surcharges in your calculation • Fast, minimal, and easy-to-use interface • Lock Screen widget for instant access Whether you're dining out or splitting a bill, PreTip helps you tip with confidence and clarity.