Ditch vs Fish Mapping
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ditch
Enhance your boating experience with intelligent routing and accurate arrival time predictions. Visualize historical vessel traffic and customize charts for a personalized view of waterways, ensuring safer and more confident journeys on the water.
- AI-powered smart routing
- Accurate ETA predictions
- Historical AIS data visualization
- Customizable marine charts
- Live navigation view
- Up-to-date waterway information
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Ditch: Boat Navigation Reimagined. Ditch empowers captains with smarter, safer routes and unparalleled confidence on the water. Try it free for two weeks! SMART PATH™ Our unique routing algorithm analyzes billions of data points, including historical AIS data, to create the safest, most efficient path for your boat. It's like having years of local knowledge distilled into every journey. SMART ETA No more guessing arrival times. Ditch factors in the slower no-wake zones, and your cruising speed, to provide more accurate ETAs, taking the guesswork out of your journey. Ditch is not designed to replace your existing navigation tools, but to enhance them. Think of it as your trusted second opinion, providing an extra layer of confidence so you can focus on enjoying your time on the water. Additional Key Features AIS DATA See where other boats have traveled. Visualize historical AIS data directly on your charts to identify popular and safe routes. CUSTOMIZABLE CHARTS Tailor your charts to your needs. Filter data based on local captains, recency, and boat length, to get a personalized view of the waterways. LIVE NAVIGATION VIEW See real-time updates on route distance, time to arrival, and SOG while underway. UP-TO-DATE DATA We prioritize the freshest most recent information. CONSTANTLY EVOLVING Our routing AI algorithm is always learning and improving. UNPARALLELED DETAIL Combining NOAA charts, USACE surveys, and historical AIS. AI POWERED Our cutting-edge technology analyzes millions of miles of real-world boating data. SIMPLE & INTUITIVE Our uncluttered interface puts the focus on your route, making navigation effortless and enjoyable. EFFORTLESS EXPLORATION Focus on the joy of boating, not just navigation. After your free trial, enjoy a full year of Ditch for only $29.99. Download Ditch today and experience the boat navigation reimagined! Terms of Use: https://ditchnavigation.com/ditch-terms-of-use/ Privacy Policy: https://ditchnavigation.com/privacy-policy/
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
Screenshots
Verdict
The clearest difference is in-app purchases: Fish Mapping at none against Ditch's 2. Fish Mapping also leads on iOS requirement (13.4 vs 15.1). Ditch's advantage is rating (3.9 vs 3.7) and review sentiment (64% vs 50%). On price, update cadence, ads and device support 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. Ditch sells 2 in-app purchases, starting at $24.99 per year. Fish Mapping asks for nothing beyond the download.
Ditch holds the better App Store score, 3.9 against 3.7. That said, the two scores are not equally well evidenced: Ditch has 22 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 64% of Ditch's written reviews are positive against 50% of Fish Mapping's.
Ditch ships an update monthly, Fish Mapping every 3 weeks. The most recent releases landed on August 4, 2026 and September 9, 2026 respectively.
| Parameter | Ditch | Fish Mapping |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (22 ratings) — better | 3.7 (3 ratings) |
| Positive reviews | 64.3% of reviews — better | 50.0% of reviews |
| Number of ratings | 22 — better | 3 |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Subscription |
| Best chart rank | #189 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 13.4 — better |
| Further details — not scored | ||
| Size | 72 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | Extent Devices LLC | OceanBytes Holding LLC |
Customer experience
Ditch
Fish Mapping
In-app purchases
Ditch
- Ditch Student Subscription14 Days trial$24.991 Year
- Ditch Annual iOS Subscription14 Days trial$29.991 Year
Fish Mapping
No in-app purchases









