Submarius vs FishTrack.
FishTrack is the default choice for serious offshore crews chasing temp breaks and color changes — tuna, marlin, mahi. The cloud-free SST and chlorophyll compositing is years of processing work and hard to beat. Submarius is built for a different user: the coastal spearo, diver, inshore angler, or boater who wants a go/no-go verdict, a water-clarity forecast, and safety features that are free. If you run offshore charters for a living, FishTrack is probably still in your stack — we're not trying to replace it.
| Feature | Submarius | FishTrack |
|---|---|---|
| Cloud-free SST composites (offshore) | Basic SST overlay | ✓ years of processing |
| Chlorophyll for offshore color changes | Not surfaced | ✓ |
| Water clarity for inshore / reef diving | ✓ dedicated Secchi forecast | Chlorophyll proxy only |
| Single-number verdict (0–10) | ✓ | — |
| Bite score with transparent factors | ✓ | — |
| Spearfishing / diving / surfing modes | ✓ 8 modes | Fishing only |
| Shark tag alerts (OCEARCH) | ✓ free forever | — |
| Buddy GPS + SOS | ✓ free forever | — |
| Reef / wreck structure overlay | ✓ | — |
| Community post-dive visibility reports | ✓ H3-fuzzed privacy | — |
| Lifetime purchase option | ✓ $149 (capped founders) | — |
| Pricing | $12.99 / $99 yr · $149 lifetime | ~$14.99 / $79.99 yr |
Who should use FishTrack?
Offshore tournament crews, charter captains targeting tuna / marlin / mahi, and anyone whose trips hinge on finding the temp break at the right depth. FishTrack's cloud-free SST compositing is the output of years of satellite image processing — they fill in where clouds obscure single-pass data — and that's genuinely hard to replicate. The chlorophyll layer for offshore color changes is equally strong.
If you're running 30+ miles offshore with canyon fishing or trolling weedlines as the game plan, FishTrack is in your kit for a reason.
Who should use Submarius?
Submarius is built for the coastal and inshore ocean user:
- Spearfishers and divers. Our water-clarity forecast is unique — a real Secchi-depth estimate, not a chlorophyll proxy. Tailored to reefs, ledges, kelp forests, and inlets.
- Inshore anglers. Bite Score combines tide, moon, solunar, pressure, and wind. Every factor is tappable for reasoning.
- Multi-activity ocean users. Spear in the morning, fish in the afternoon, surf tomorrow. One app; the verdict reweights per activity.
- Anyone who wants safety features free. Shark tag alerts, SOS, buddy GPS. Not optional add-ons.
- Boaters who want reef and wreck structure overlaid on the map. OSM + state datasets, kept honest with source attribution.
The difference in one line.
FishTrack is the offshore SST tool for fishing. Submarius is the coastal ocean-intelligence app for fishing, diving, spearfishing, and surfing — with water clarity, safety, and a verdict. Different jobs.
Can you use both?
Yes, and many serious anglers probably should. FishTrack for the offshore intel; Submarius for the inshore verdict, the dive or spear day, the safety tools, and the multi-activity forecast. They don't overlap much — and Submarius at $99/yr (or $149 lifetime) plus FishTrack at $79.99/yr is still cheaper than a full Navionics + Fishbrain + Surfline + tide-app stack.
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