Barometer & Altimeter vs ImageCompare

HowHigh is a free barometer and altimeter toolkit for following altitude and air-pressure changes. See live readings, record sessions, and compare history on iPhone and iPad—without a subscription. USE HOWHIGH TO: - View live pressure, altitude, rate of change, elevation gain, and sea-level adjustments. - Record hikes, climbs, hills, stairs, weather observations, and experiments. - Review session history, compare recordings, and explore interactive charts. - Share results or export recorded data as CSV. - Choose manual calibration, optional WeatherKit calibration, or nearby NWS station calibration where supported. - See the active measurement source and sensor-confidence context alongside each reading. - Switch between metric and imperial units. Your recorded sessions stay on your device until you choose to share or export them. Core readings and saved history remain available offline; online calibration sources require a connection. HowHigh is designed for everyday observation and exploration. It does not replace certified instruments or safety-critical guidance. Track how altitude and air pressure change over time—all core features are free.

ImageCompare helps you quickly gauge how similar two photos are using an on-device AI model (CLIP ViT-B/32). Everything runs locally on your iPhone/iPad—no sign-in, no uploads, and no data collection. How it works 1. Pick two images from your library. 2. ImageCompare computes a similarity score (0–1). 3. Use the score as a guide to judge how alike the two photos are. Why you’ll like it • On-device inference (works offline) • Private by design — nothing leaves your device Use cases • Find near-duplicates • Compare edits vs originals • Quick research/prototyping checks Important AI models can make mistakes. The similarity score is provided for reference only and should not replace your own judgment. Use at your discretion.