Offshore and inshore fishing intelligence
Read the water before you leave the dock.
Rigline turns satellite and ocean-model data into ranked hotspots, weedline forecasts and bite windows, refreshed through the day. Every score comes with the reasons behind it.
Free on iPhone. No subscription and no in-app purchases.
Top 3 drivers today
92.0
N 34° 16.200' W 075° 52.800'
Rising
- Convergence + shear18.2
- Shelf break proximity16.0
- SST front strength13.3
- offshore regions, Maine to Texas, the Pacific coast, Hawaii and Mexico
- 25offshore regions, Maine to Texas, the Pacific coast, Hawaii and Mexico
- ranked hotspots in each region, every score explained
- 30ranked hotspots in each region, every score explained
- weedline forecast on a slider that follows your clock
- 48 hweedline forecast on a slider that follows your clock
- estuaries with inshore hotspots and an hourly bite forecast
- 8estuaries with inshore hotspots and an hourly bite forecast
Offshore
Find the water worth the run
Fuel is expensive and the ocean is big. Rigline ranks where breaks, bait and bottom line up, then shows you the layers underneath so you can check its work.
Ranked hotspots, with the reasons
Up to 30 ranked spots in each of 25 regions. Tap one and you see why it scored, not just that it did.
- The top three drivers today, a trend, and how many runs in a row the spot has held
- Coordinates in degrees and decimal minutes, copied with one tap
- Focus the scoring on canyons and the shelf edge, the Gulf Stream, or plumes and dirty water
Species modes
The same water, scored for the fish you are after.
Mahi
Emphasizes convergence lines and weedline edges
Wahoo
Prioritizes shelf break intersections and structure corridors
Yellowfin tuna
Warm blue water over deep slope, anticyclonic eddies
White marlin
Canyon heads and the 100-fathom edge, 23-28 C
Bluefin tuna
Cool 17-23 C shelf and slope fronts
Also blue and striped marlin, sailfish, albacore, daytime swordfish, and ahi and ono in Hawaii.
Ocean charts, every layer one tap apart
Water temp, temp anomaly, sea height, currents, depth, upwelling, salinity and mixed layer depth on one dark chart built for reading water.
- Animated currents, scored zones, and warm and cold eddies with the Loop Current front
- Long-press anywhere for coordinates, then save it as a spot
- Each layer shows when its data was last updated
Water temp
- 18°C
- 21°C
- 24°C
- 26°C
- 28°C
- 30°C
Updated 5h ago
Weedlines, up to 48 hours ahead
Likely weedlines where sargassum and current convergence overlap, projected forward so you know where the line should be when you get there.
- A slider that follows the real clock, from now out to two days
- A confidence score on every step, and a note when it is model only
- Temp fronts on the same chart, so you can tell a fishable line from a pretty one
Likely weedline
Temp front
Sat 6:00 AM
Temp breaks
Sea surface temperature break lines, with a forecast line for where the edge sits tomorrow.
Saved for offshore
Save break tiles to your phone at the dock, so the chart still works once you lose signal.
Wrecks, reefs and weather
Hundreds of charted wrecks and reefs, each with weather, seas, swell and water temp.
Inshore
Bays, sounds and flats, tide by tide
Inshore fish move with the water. Rigline scores the estuary cell by cell and tells you which hours are worth being there.
Inshore hotspots by species
Every 100 m cell scored for the fish you pick, from tides, wind and water temperature, with the bottom underneath it.
- Only species that are in season: redfish, snook, speckled trout, flounder, tarpon, striped bass, cobia and more
- Tide-aware spots with the best bite window, a tactic and likely bait
- Bottom layers for oyster and shell, seagrass, creek mouths, depth edges, bridges and docks
A bite forecast by the hour
A daily score, a 7-day outlook and the feeding windows inside each day, built from tides, wind and pressure.
- See whether the window is open now or when the next one starts
- Pick the region and species once and it opens there next time
- Scores read plainly: prime, good, fair or slow
Bite today
Snook · Tampa Bay
72 / 100
Feeding window now
7-day outlook
Today
60
Good
Thu
54
Fair
Fri
59
Fair
Sat
58
Fair
Sun
71
Good
Mon
82
Prime
Tue
66
Good
Intel
Reports from people who fish your water
A model can rank the water. It takes another angler to tell you the bite was on the east side of it.
The feed
Reports, photos and questions from anglers who fish your water, sorted by new, hot, top or nearby.
Community spots
Share wrecks, reefs and rigs, and confirm the ones you have fished so the good ones rise.
Direct messages
Follow the captains you trust and message them without leaving the app.
Coverage
Where Rigline works today
Pick your home waters once and the charts, hotspots and forecasts open there.
Offshore · Atlantic
- New Hampshire and Maine
- Massachusetts
- Connecticut and Rhode Island
- New York
- New Jersey
- Delaware
- Maryland
- Virginia
- North Carolina
- South Carolina
- Georgia
- Florida Atlantic
Offshore · Gulf
- Florida Gulf
- Alabama
- Mississippi
- Louisiana
- Texas
Offshore · Pacific and Hawaii
- Southern California
- Central California
- Northern California
- Oregon
- Washington
- Hawaii
- Baja California Sur
- Mexico Pacific mainland
Inshore estuaries
- Tampa Bay
- Chesapeake Bay
- Delaware Bay
- New York Harbor
- Long Island Sound
- St. Johns River
- Galveston Bay
- San Francisco Bay
- North Carolina sounds, in beta
Looking for a specific port? Browse the fishing guides by region.
How it works
From satellite pass to a spot on your chart
- 1
Satellite and model data comes in
Sea surface temperature, currents, sea height, salinity and sargassum imagery from NOAA and Copernicus are checked through the day.
- 2
Pipelines turn it into fishing terms
Temperature fronts, convergence, eddies and bottom structure are scored together, tuned by species and by region.
- 3
You get a chart, a rank and the reason
The heavy processing happens off your phone. What arrives is a map layer, a score and the drivers behind it.
Sources include NOAA satellite sea surface temperature, NOAA and Copernicus ocean models, and AOML sargassum imagery. Forecasts are model estimates, not guarantees.
Who makes it
Built by an offshore fisherman
Townsend Tanner
Founder and developer
- Location
- Raleigh, North Carolina
- Background
- Lifelong offshore angler
- Education
- LSU Finance '25
- Role
- Self-taught developer
I built Rigline because the offshore fishing world had no good way to use ocean data. Sea surface temperature, chlorophyll, altimetry, and current data all existed, but none of it felt accessible or actionable for anglers.
As a lifelong fisherman from North Carolina, I spent years wishing I could see where temp breaks were forming, where convergence zones were setting up, and which offshore areas were actually worth the run. While studying Finance at LSU, I taught myself to code and started building the tool I wanted to use.
Rigline processes real oceanographic data through scoring and modeling pipelines, then delivers the results as map layers you can actually use on the water. No guessing, no static charts, just current ranked intelligence for offshore fishing.
Less searching. More fishing.
Rigline is free on the App Store. Search for Rigline Offshore, or use the button.
Requires iOS 15.1 or later.