TideSignal vs Tideglass

TideSignal is a fast, simple tide companion for real-world coastal life. Check high and low tide times, see whether the water is rising or falling, save your favorite tide spots, and plan around sunrise, sunset, and moon phase without digging through cluttered marine data. Built for beach walks, paddles, dock access, shelling, waterfront errands, fishing, and anyone who wants to know the tide before they go. Features: • High and low tide times • Clear rising and falling tide status • Tide chart with current-time marker • Saved tide locations • Closest NOAA tide station lookup • Station search and map selection • Sunrise and sunset times • Moon phase and illumination • Feet and meters support • 12-hour and 24-hour time formats • Local data storage with delete-all option • Offline cache for recently loaded tide data TideSignal uses NOAA tide station data and keeps the experience focused, readable, and practical. It is not a marine navigation or safety tool. Always check official forecasts, warnings, posted signs, and local conditions before going on or near the water. TideSignal is free for version 1.0.

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.