Fish Mapping vs 302 Waterways
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fish Mapping
This app provides detailed fishing recommendations and environmental data to help anglers find the best spots for bait and game fish. It displays information like plankton strength, sea surface temperature, and ocean currents to optimize fishing trips.
- Fishing Recommendations
- Weed Lines
- Plankton Front Strength
- Sea Surface Temperature
- Sub-Surface Temperatures
- Sea Surface Height Anomalies
- Ocean Currents
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Let SiriusXM Marine Fish Mapping help save time and fuel by showing you the spots where conditions are best for bait fish to gather and where game fish are most likely to hunt. The Fish Mapping App is included with your SiriusXM Marine Fish Mapping subscription. With the Fish Mapping App, anglers can view the following features on their phone or tablet: • Fishing Recommendations • Weed Lines • Plankton Front Strength & Contours • Sea Surface Temperature Front Strength & Contours • 30m Sub-Surface Temperatures • Sea Surface Height Anomalies • Ocean Currents • Historical Data Note: SiriusXM Marine weather features are not available on the Fish Mapping App. Download the Fish Mapping App now and start using it on your smartphone or tablet to help plan your next fishing trip! App requires internet access. Not a Fish Mapping subscriber? Learn more at siriusxm.com/fishmapping. -------------------------- The Fish Mapping App is only available with your Fish Mapping subscription and subscriptions require a compatible satellite-enabled device. The Fish Mapping App is not sold separately. Access to the app may take up to 24 hours from subscription activation to process and access is limited to 2 devices. Internet access is required for the Fish Mapping App. Data rates may apply. Subscription and service fees, content, and features are subject to change. IMPORTANT INFORMATION: Not all devices are capable of receiving all services offered by SiriusXM. Current information and features may not be available in all locations, or on all receivers. Data displays vary by device; images are representative only. SiriusXM services may include weather and other content and emergency alert information. Such information and data is not for “safety for life,” but is merely supplemental and advisory in nature, and therefore cannot be relied upon as safety critical in connection with any aircraft, seacraft, automobile, or any other usage. SiriusXM is not responsible for any errors or inaccuracies in the data services or their use. See Fish Mapping coverage area at siriusxm.com/marine/coverage-map. SiriusXM Privacy Policy: www.siriusxm.com/privacy Your Privacy Choices: www.siriusxm.com/yourprivacychoices SiriusXM Customer Agreement: www.siriusxm.com/customeragreement
302 Waterways
This navigation app provides real-time boating information for Delaware and Maryland coastal waters. It combines NOAA charts with community-sourced data on hazards, sandbars, and popular routes. Features include live maps, community reports, cruise mode, and route sharing.
- Live NOAA charts with satellite imagery
- Real-time community hazard reports
- Cruise mode with auto-zoom navigation
- Record and share GPS tracks
- Tide, wind, and weather conditions
- Connect with other boaters
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302 Waterways is the community-powered navigation app built for Delaware & Maryland coastal waters — the Indian River, Rehoboth and Assawoman bays, the Delaware Bay, the coastal inlets, and the connected tidal rivers. See what local boaters know, in real time: shifting sandbars, shoaling, hazards, no-wake areas, and the routes people actually run — all on a live chart with NOAA nautical charts and high-resolution satellite imagery. WHAT YOU GET • Live map — NOAA charts + satellite, channel markers, depth, marinas, fuel docks, and public boat ramps • Community reports — sandbars, shoaling, debris, hazards, no-wake areas, and wildlife sightings, confirmed by other boaters • Cruise mode — a heading-up, follow-along navigation view with your speed and course, that auto-zooms with your speed and calls out hazards and no-wake zones ahead • Routes — record your track by GPS and share the line so others can follow it • Conditions — tides, wind, and weather at a glance • Friends — connect with other boaters and see the routes they share with you • Mark an area — draw a caution area to warn the community Built by boaters, for our waters. Free to use. IMPORTANT: 302 Waterways is community intelligence — not a certified nautical chart and not a replacement for official charts, a dedicated GPS chartplotter, or safe seamanship. Conditions change; always navigate responsibly and carry required safety equipment.
Screenshots
Verdict
The clearest difference is review sentiment: 302 Waterways at 100% against Fish Mapping's 50%. 302 Waterways also leads on rating (5.0 vs 3.7) and monetization model (free vs subscription). Fish Mapping's advantage is iOS requirement (13.4 vs 15.0). On price, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
302 Waterways holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews point the same way: 50% of Fish Mapping's written reviews are positive against 100% of 302 Waterways's.
Fish Mapping ships an update every 3 weeks, 302 Waterways daily. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.
| Parameter | Fish Mapping | 302 Waterways |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 3 | 3 |
| Update frequency | Every 3 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Subscription | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.4 — better | 15.0 |
| Further details — not scored | ||
| Size | 57 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | OceanBytes Holding LLC | Michael Eller |
Customer experience
Fish Mapping
302 Waterways
In-app purchases
Fish Mapping
No in-app purchases
302 Waterways
No in-app purchases









