Tides Explorer vs Tideglass

Tides Explorer — Accurate Tides, Currents, and Marine Weather Tides Explorer is a precision tide and current app for sailors, boaters, paddlers, and swimmers, built on official NOAA data covering over 6,000 stations across the United States and international waters. It helps you understand not just what the water will do, but when and why, using clear charts and reliable predictions you can plan around. Core Features Get accurate tide and current predictions straight from NOAA, with fast search by name or location and interactive charts for exploring and comparing stations. At supported stations, see real observed water levels laid over the prediction (Pro) — so you know what the water's actually doing, not just what it's supposed to do. Save your favorite spots for quick access (Pro), track real-time weather at supported stations — wind, air and water temperature, and barometric pressure (Pro) — and check sun, moon, and twilight times to help plan your time on the water. Plan Around What Matters to You Drag a custom reference line onto any favorite station's chart — on a current station, mark a safe velocity to catch slack water before transiting a pass — and see exactly when you're above or below it. Set alerts for high and low tides, current extremes, your reference line, or slack water itself (Pro), plus new Moon Over Water alerts for when moonrise or moonset lines up with the water near sunset or sunrise. Designed for Apple Platforms Tides Explorer includes Home and Lock Screen widgets and a full Apple Watch app with multiple complications, all optimized for iPhone, iPad, and Apple Watch. Built for the Water Ideal for sailing, boating, kayaking, swimming, fishing, and coastal exploration, Tides Explorer delivers dependable marine data without clutter, so you can plan confidently and focus on the water.

Tideglass is a free, offline tide instrument for iPhone and Apple Watch. Designed like a vintage marine chronometer in brass and navy — no ads, no accounts, no internet required. FEATURES ◆ ~8,000 tide stations worldwide, all bundled in the app ◆ Pannable 24-hour chart with a static centre cursor — swipe to scrub ±7 days, with a magnetic snap when you cross "now" ◆ 30-day histogram: every day's maximum high and minimum low as paired bars, with the spring/neap pulse plain to see ◆ 12-month envelope: a smoothed year-at-a-glance view of the highs and lows around your spot ◆ Top-5 tide rankings: see the biggest highs and deepest lows in any visible window ◆ Sunrise, sunset, moon phase, and your nearest station's name at a glance ◆ Mechanical-drum readout for time and water level, with selection haptics as you scrub ◆ Apple Watch standalone — runs without iPhone, same instrument feel on the wrist PRIVACY ◆ Location is read only on device to find your nearest tide station — nothing is transmitted, stored, or shared ◆ No accounts, no analytics, no ads, no tracking DATA Tide harmonics derived from the open OpenWaters database (NOAA + TICON-4). Predictions are sub-hour accurate at most reference stations. Subordinate stations rely on time and height offsets from a parent station. RECREATIONAL USE ONLY. Not for marine navigation. Always consult official hydrographic publications for safety-critical decisions.