Comparison

1st vs Fish Mapping

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

1st

Control your boat's engine and security features remotely. Receive man overboard alerts and manage access for others. Enhances safety and security for boaters.

Highlights
  • Theft Deterrent control
  • Man Over Board alerts
  • Time-limited access granting
  • Proximity-based engine disabling
  • Emergency contact notifications
Features
Read full description

The 1st Mate app puts you in control of your vessel by interacting seamlessly with the 1st Mate system installed. You can easily control Theft Deterrent features, see Man Over Board alerts and give time limited access to your loved ones, or even the service guy. 1st Mate from Mercury and Quicksilver is the world's first engine-integrated man overboard and proximity-based theft deterrent system. Utilizing a highly styled wearable for up to 8 people, 1st Mate turns the engine off or sounds an alarm during a man overboard event (MOB), and optionally sends notifications to emergency contacts. If the proximity of the fob is not in range, the system disables or puts engine in guardian mode. All these functions are covering boaters most important needs, namely safety and security.

About

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.

Highlights
  • Fishing Recommendations
  • Weed Lines
  • Plankton Front Strength
  • Sea Surface Temperature
  • Sub-Surface Temperatures
  • Sea Surface Height Anomalies
  • Ocean Currents
Features
Read full description

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

1st4 screens
Fish Mapping3 screens

Verdict

The call

The clearest difference is review sentiment: 1st at 100% against Fish Mapping's 50%. 1st 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, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

1st holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 10 and 3 respectively. Written reviews point the same way: 100% of 1st's written reviews are positive against 50% of Fish Mapping's.

UpkeepUpdate frequency

1st ships an update monthly, Fish Mapping every 3 weeks. The most recent releases landed on August 14, 2026 and September 9, 2026 respectively.

Scorecard5 real differences · 5 level
1st versus Fish Mapping: the parameters behind the verdict, then further details
Parameter1stFish Mapping
PriceFreeFree
Rating5.0 (10 ratings) — better3.7 (3 ratings)
Positive reviews100.0% of reviews — better50.0% of reviews
Number of ratings10 — better3
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterSubscription
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.013.4 — better
Further details — not scored
Size124 MB57 MB
Age rating4+4+
DeveloperMercury Marine LLCOceanBytes Holding LLC

Customer experience

1st

All ratings10 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Fish Mapping

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

1st

No in-app purchases

None

Fish Mapping

No in-app purchases

Questions

Is 1st free?
1st is free to download, with no in-app purchases.
Is Fish Mapping free?
Fish Mapping is free to download, with no in-app purchases.
Which has better reviews, 1st or Fish Mapping?
1st is rated higher. 1st averages 5.0 out of 5 from 10 ratings, while Fish Mapping averages 3.7 from 3 ratings.
Do 1st or Fish Mapping have ads?
Neither 1st nor Fish Mapping shows ads.
Which is updated more often, 1st or Fish Mapping?
1st ships an update monthly, and Fish Mapping every 3 weeks. Most recently, 1st was updated on August 14, 2026 and Fish Mapping on September 9, 2026.

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