Chart map & seafloor relief
See official NOAA nautical charts on your iPhone for Miami, Biscayne Bay, the Keys and Southwest Florida. Seafloor relief shading and depth contours are coming soon.
Floundr puts the NOAA chart, your saved spots and your exact coordinates on your iPhone, built for South and Southwest Florida ocean waters, the Florida Keys, Florida Bay and the Dry Tortugas, plus the Bahamas. Tides, wind, currents, a trip recorder and trip logs for charter captains are on the way.
Free for 3 months, then $3.99/month or $29.99/year.


Start with the chart and your spots today. Each new feature arrives in the same app, at the same price.
See official NOAA nautical charts on your iPhone for Miami, Biscayne Bay, the Keys and Southwest Florida. Seafloor relief shading and depth contours are coming soon.
Save fishing spots from the chart or your position, read coordinates in DD, DDM or DMS, and move spots to and from your chartplotter with GPX.
Coming soon to Floundr: NOAA tide and tidal-current predictions, wind forecasts and Gulf Stream currents on the same map as your spots.
Coming soon to Floundr: record your track on the water with distance, time and speed, see it on the chart and export it as GPX.
Coming soon to Floundr: a private trip log with guests, purpose, revenue, expenses and catches, with CSV and PDF export for your accountant.
Fishing apparel brands are in the app today. Local bait shops, marinas, ramps, mechanics and charters near you are coming soon.
Floundr Pro unlocks the chart map, spots and every tool that follows.
Every Pro feature, free for your first 3 months. Cancel any time before it ends and you won't be charged.
After the trial. Renews automatically each month until you cancel.
After the trial. About 37% less than paying monthly. Renews automatically each year.
Free for 3 months, then $3.99/month or $29.99/year. Billed through your Apple Account. The apparel brand directory, FAQ and contact are free. If your subscription ends, you can still view and export everything you saved.


Coming soon: log who was aboard, what each trip was for, what it earned and what it cost, then hand your accountant a CSV or PDF. Your records stay in your own iCloud.
Floundr for captains
Floundr started as a directory of fishing apparel brands, and that directory is still free for every user. Make a fishing apparel line? Ask to be listed.
Get your brand listedFree for 3 months, then $3.99/month or $29.99/year. The yearly plan saves about 37% over paying monthly. The apparel brand directory, FAQ and contact screens are free.
New subscribers get 3 months free. If you don't cancel at least 24 hours before the trial ends, your subscription starts and renews automatically. Apple handles the billing.
On your iPhone, open Settings, tap your name, then Subscriptions, choose Floundr and tap Cancel Subscription. You keep Pro until the end of the period you paid for.
They stay yours. After a subscription ends you can still view and export your spots and logs; you just can't add new ones until you subscribe again.
Floundr is built for South and Southwest Florida ocean waters, the Florida Keys, Florida Bay and the Dry Tortugas, plus the Bahamas. Inland and freshwater lakes are not covered.
Floundr is in beta on Apple's TestFlight. Leave your email and we'll send you an invite to try the chart map, spots and coordinates now, and each new feature as it lands.