Tidewell: Tide Times & Chart

Every tide, beautifully — tides fully offline. Precise high & low times, a live tide curve, Home & Lock Screen widgets, alarms, and an Apple Watch app.

Tidewell is a calm, offline-first tide app for the coast — precise high and low tide times, a live tide curve, and gentle alarms for thousands of coastal stations worldwide. No account. No sign-in. Tide times work with no signal at all.

Every prediction is computed on your device with the standard harmonic method, using open tide-harmonic constants from NOAA and the TICON global tide dataset. Open the app on a boat, a beach, or a remote harbour with no reception — your tides are still there.

WHAT YOU GET • High and low tide times and heights for today, in metres or feet • A live tide curve with a "now" marker and a countdown to the next tide • 7-day tide tables for any station • Sunrise, sunset, and moon phase • Nearest-station lookup, or search 4,300+ coastal stations by name • 12/24-hour and metric/imperial toggles • Your favourite station synced across your own devices via iCloud

TIDEWELL PRO — $2.99/week, with a 7-day free trial • Unlimited favourite stations • Home Screen and Lock Screen widgets — next tide, tide curve, and tide table • Apple Watch complications • Tide alarms before every high and low • Full 48-hour hourly charts • 12-month tide tables with per-minute heights • Extended solunar day ratings and activity times

Tidewell Pro is a weekly auto-renewable subscription. Start with a 7-day free trial, then $2.99/week (or local equivalent). Payment is charged to your Apple ID at confirmation of purchase. It renews automatically unless canceled at least 24 hours before the end of the current period; your account is charged within 24 hours before renewal. Manage or cancel anytime in your App Store account settings. Any unused portion of the free trial is forfeited on purchase.

Terms of Use (EULA): https://gettidewell.app/terms Privacy Policy: https://gettidewell.app/privacy

BUILT FOR THE COAST Tidewell is designed to feel calm and cinematic rather than cluttered — a deep-ocean interface, a fluid tide curve, and widgets plus an Apple Watch companion for a glance at the wrist.

PRIVACY Tidewell has no accounts and no analytics, and your device location never leaves your device — it is used only to find the nearest station. Marine conditions are fetched using the published coordinates of the station you are viewing. Purchases are handled by Apple and RevenueCat.

Tide predictions are for planning and reference only and must not be used for navigation. Tidewell is an independent app and is not affiliated with or endorsed by NOAA or any national hydrographic authority.