Springly vs Nautilus Dive App

Dive into Florida's natural wonders with Springly -- the premier offline guide and interactive map to over 1,000 freshwater springs across the Sunshine State! Whether you’re hunting for hidden 1st magnitude swimming holes, floating down the crystal-clear Ichetucknee river, snorkeling with manatees, or scouting cave dives, Springly delivers everything you need to plan the ultimate freshwater adventure. EXPLORE OVER 1,000+ FLORIDA SPRINGS • Comprehensive directory of First, Second, and Third Magnitude springs, plus thermal and cold water vents throughout Florida and beyond. • Search instantly by spring name, county, outflow river, or nearby city. • Advanced filters: quickly isolate springs by Magnitude rank, Swimmable areas, Tubing runs, Scuba diving allowances, or Live USGS gauges. INTERACTIVE OFFLINE-READY VECTOR MAPS • Fast, responsive vector maps powered by MapLibre and OpenFreeMap. • Color-coded map pins indicating magnitude classification, thermal properties, and your personal visited status. • Tap-to-focus navigation: inspect spring locations and get one-tap directions via Apple Maps, Google Maps, or Waze. • 100% offline database ensures complete access deep in Ocala National Forest or Suwannee river basins with zero cellular reception. LIVE USGS NWIS WATER TELEMETRY • Real-time hydrological data streamed directly from official USGS river gauges. • Check current water temperatures before you dive (verify that refreshing 72°F plunge!). • Monitor live streamflow discharge (cfs / mgd) and gauge heights to time the best tubing and paddling conditions. DETAILED SPRING PROFILES & VITALS • High-resolution photography of vents, spring runs, and surrounding parks. • Key vitals at a glance: magnitude classification, vent depth, daily flow rate, ownership (State Parks, County, USFS, Private), and water clarity. • Amenities breakdown: restrooms, boardwalks, picnic areas, kayak rentals, dive permits, and admission details. TRACK YOUR VISITS & PERSONAL JOURNAL • Mark springs as Visited and curate your personal bucket list with Favorites. • Keep private journal notes for every spring -- record water clarity, wildlife sightings, parking tips, and memories. • Track your exploration progress across all 33 First Magnitude wonders. • Complete privacy: 100% on-device storage with JSON backup and restore. No accounts, no logins, and zero advertising. PARKMARKER COMPANION INTEGRATION • Seamlessly connected to our sister app, ParkMarker! • Springs located within Florida State Parks (Ichetucknee, Rainbow Springs, Wakulla, Wekiwa) and National Forests feature direct companion links to track state park passport stamps, trail guides, and park amenities. Download Springly today and discover the crystal-clear magic of Florida's freshwater springs!

Nautilus is a dive logbook built by a diver. It pulls dives off your Bluetooth dive computer, stores everything on your device first, and gives you a beautiful polaroid-style journal to look back on every trip. DIVE COMPUTER SYNC Connects to most Bluetooth dive computers like Shearwater, Suunto, Mares, Cressi, Garmin, Aqualung, Oceanic, and dozens more (anything libdivecomputer supports). Downloads every dive with the full depth profile, gas mix, temperatures, and ascent rate. YOUR DATA, YOUR DEVICE Everything is stored locally on your phone first. If you create an account, your data is uploaded over HTTPS and encrypted at rest on our servers. We don't read it, we don't share it, and you can export or delete the whole thing in one tap. POLAROID LOGBOOK Every dive is a polaroid card you can scroll through. Add your own photos, location, buddies, notes, gear. Group dives into trips. See every dive site you've ever logged on a map, and replay your diving history on a journey timeline. BUDDIES & FRIENDS Add buddies to each dive. Connect with diving friends via buddy codes and share dives, certifications, emergency contacts or gear setups. Each category is opt-in. MARINE FORECAST Marine and atmospheric forecast for any site you've logged: water temperature, swell, wind, current. Powered by Open-Meteo. EMERGENCY ASCENT TRAINER A BCD / emergency-ascent simulator to practice ascent control between trips, or for instructors to demo it to students. Real physics, immediate feedback, zero real-world risk. EXPORT FREEDOM Export to Subsurface XML, to a full Nautilus backup file (.nautilus), or import existing logs from FFESSM, Subsurface, or another Nautilus install. Your data is never locked in. FREE, NO ADS, NO SUBSCRIPTION Nautilus is free. No ads, no analytics, no upsell screen, no subscription. Sign up if you want backup and friends; skip it if you don't. PRIVACY No analytics. No third-party SDKs beyond the dive-computer Bluetooth library, Apple/Google sign-in, Mapbox for map tiles, and Open-Meteo for forecasts. Full privacy policy and one-tap account deletion in-app. WHO IT'S FOR Recreational divers, technical divers, dive instructors, and anyone tired of dive log apps that hide their data behind a paywall. Metric or imperial, CMAS / PADI / SSI role conventions. LANGUAGES English, French, German, Spanish, Italian, Portuguese, Japanese, Korean, Simplified Chinese, Indonesian, Thai, Tagalog.