Press kit

Everything in this page is free to use under CC BY 4.0 with attribution to Submarius.

For interview requests, fact-checking, or anything not covered here, use the contact link on submarius.com.

Boilerplate (one paragraph)

Submarius is a mobile-first ocean-conditions app that gives spearos, divers, anglers, and boaters a single GO / NO / CAUTION verdict per day instead of forcing them to integrate ten dashboards themselves. The product is built around a physically-grounded water-clarity forecast — the only consumer app that fuses three independent satellite ocean-colour sources (VIIRS, GOES-16 ABI, multi-mission DINEOF) and converts them to underwater visibility via the published Lee 2015 mechanistic model. Submarius runs as a native iOS app and as a progressive web app at submarius.com. Safety features (SOS with Plus Code rescue location, dive-buddy GPS sharing, OCEARCH tagged-shark alerts) are permanently free regardless of subscription tier.

Boilerplate (one sentence)

Submarius is the marine-conditions app that tells you when to go, with a physically-grounded water-clarity forecast and permanently free safety features.

Boilerplate (tagline)

A verdict, not a dashboard.

Logos and brand assets

Located in assets/brand/ at the repository root:

Use of the Submarius name and logo for editorial purposes (news articles, reviews, podcast cover art, etc.) is permitted without prior approval. Use of the name or logo to imply endorsement, partnership, or affiliation requires written permission.

Screenshots

Product screenshots will be added to assets/screenshots/ as the screenshot review settles.

For up-to-date App Store imagery, see the App Store listing.

Quick facts

   
Product Submarius
Category Marine conditions, water-clarity forecast, dive planning, fishing intelligence
Platforms iOS (native), Web (PWA)
Coverage Global (with US-specific signals — USGS rivers, NOAA HAB, NOAA Tides — adding precision in the US)
Pricing Free tier with all safety features. Pro: $12.99/mo, $99/yr, $149 lifetime
Launched 2026
Founded by Independent founder; not venture-backed
Website https://submarius.com
Docs / methodology https://github.com/Submarius/submarius

What’s distinctive

If you’re writing about Submarius, the things that genuinely differentiate the product:

  1. Multi-satellite ocean-colour fusion with the inverse-variance maths to back the uncertainty bands. No other consumer marine app fuses three independent sensors.
  2. Hourly geostationary clarity updates via GOES-16 ABI processed through ACOLITE. Most clarity products are minimum 1-day stale.
  3. Adaptive Case-1 / Case-2 coefficient in the Kd → Secchi conversion. Most products use 2.38 everywhere and silently overestimate coastal turbidity.
  4. Honest uncertainty bands. The width of the band reflects actual model confidence; we don’t artificially narrow it to look more confident.
  5. Bathymetric cap. A 4 m bottom doesn’t get a 25 m visibility estimate, regardless of what the satellite says about the surface.
  6. Permanently free safety features. SOS, buddy-GPS, OCEARCH tagged-shark proximity, crowd-sourced sightings — never gated.
  7. Privacy-by-engineering. User dive spots are H3-quantised on device before leaving; even Submarius can’t recover precise coordinates of fuzzed spots.
  8. No black-box AI. Every number in the app is composed from visible signals. Tap the verdict, see the breakdown; tap a signal, see its source.

Suggested questions for an interview

What we won’t do for press

Contact

Use the contact link on submarius.com. Response time: 24–48 hours for press inquiries.