The FishTrack & SatFish alternative built for the boat that fishes.
Real-time AIS. Custom vessel watch list. Contour overlays. 7-day playback. Live buoy temps. Five features no other platform combines under one subscription — see for yourself.
11 of 11 features.
Only Catalysst checks every box.
Live vessel traffic + 72h playback
Watch your competition. See where they were drifting yesterday. Spot the bite before it ends.
Custom 50-vessel watch list
Your watch list. Notification rings. The boats you actually care about, not 5,000 commercial ships.
SST + CHL contour overlays
Temperature breaks rendered as discrete lines, not just gradient color. Find the edge faster.
7-day SST/CHL playback
Scrub backwards through the past week. See how the temp break shifted, where the green water moved.
Live NDBC buoy temps
Real ocean temps from real buoys. Not satellite estimates filtered through cloud cover.
Multi-region coverage
Pacific NW, NorCal, SoCal, Hawaii, Gulf, SE, Mid-Atl, NE for US. Mexico, Central America, Caribbean for International. One subscription, every coast you fish.
Full feature comparison
Catalysst US & International plans vs. other offshore fishing chart services.
Looking for a FishTrack or SatFish alternative? FishTrack, SatFish, Fishdope, Hilton's, Terrafin and ROFFS all provide SST and chlorophyll charts, and SatFish, Fishdope, Hilton's and Terrafin let you step back through earlier satellite images. None of the six lists live AIS vessel tracking, AIS playback or a personal vessel watch list on its own website. Catalysst puts those next to SST and chlorophyll contour overlays and 7-day chart playback, from $9.99/month.
| Feature | Catalysst | FishTrack | SatFish | Fishdope | Hilton's | Terrafin | ROFFS |
|---|---|---|---|---|---|---|---|
SST satellite tiles 1km satellite resolution | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Chlorophyll satellite tiles 750m satellite resolution | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
SST + CHL contour line overlays Temperature breaks visualized as discrete lines | Yes | PARTIAL | No | No | No | No | PARTIAL |
7-day SST/CHL playback Scrub backward through the past week to see how the bite developed | Yes | No | Yes | Yes | Yes | Yes | No |
Real-time AIS vessel tracking Live commercial + sportfishing vessel traffic | Yes | No | No | No | No | No | No |
AIS playback timeline Replay yesterday's vessel traffic, see where boats were drifting | Yes | No | No | No | No | No | No |
Custom vessel watch list (your 50 boats) Build your own watch-list of vessels with notification rings | Yes | No | No | No | No | No | No |
Real-time NDBC buoy water temps Live ocean temp readings, not just satellite estimates | Yes | No | Yes | No | No | No | No |
GPS waypoints (named banks/spots) Tanner, Cortez, 295, Upper 500, etc. preloaded | Yes | Yes | Yes | Yes | Yes | Yes | PARTIAL |
Multi-region coverage (US + International) PNW, NorCal, SoCal, Hawaii, Gulf, SE, Mid-Atl, NE + Mexico, Central America, Caribbean | Yes | Yes | Yes | No | PARTIAL | Yes | PARTIAL |
No-app browser access Open the URL on any device, no download or install | Yes | Yes | Yes | Yes | Yes | Yes | PARTIAL |
| Starting price (Oct 2026) | $9.99 US / $12.99 Intl | $14.99 / mo or $95.99 / yr | $129 / yr | $199 / yr | $49.99 / wk, $74.99 / mo or $200 / yr; +$30 per extra region | $119 / yr | $90 / analysis |
Competitor features and prices are taken from each company's own website or App Store listing as of October 2026, in US dollars. "No" means the feature is not listed there. "Partial" means it is listed in a limited form (one region, a paid add-on, or reduced functionality). Catalysst price shown is the US plan; International is $12.99/mo.
Why this matters when you're burning fuel.
The other services in the table show you satellite SST and chlorophyll, and most let you step back through earlier images. None of them lists live vessel tracking, so you guess where the boats are, guess where the break moved, and spend the morning working out what already happened.
Live AIS shows you exactly where your competition is right now. Custom vessel ring tells you the moment your watch boats stop. 7-day playback shows where the temp break has been moving. Buoy temps confirm satellite. You leave the dock knowing where to go.
Try it for 7 days. No commitment.
Pick US ($9.99/mo) or International ($12.99/mo). Cancel anytime from the app. No annual contract.