Comparison

Rain Alerts vs SwellMap Boat

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

Head to head
About

Rain Alerts

Receive timely push notifications for impending rain at your current location or any specified UK/Ireland location. Visualize weather patterns with animated radar and customize alert settings for precipitation intensity, notification frequency, and sound.

Highlights
  • Rain push notifications
  • Animated radar visualizations
  • Customizable radar colors and speed
  • Precipitation graph
  • Location-based alerts (GPS or manual)
  • Adjustable notification timing and intensity
  • Multiple alert setups
Features
Read full description

Never stand in the rain again! Rain Alert sends you a push notification when it is going to rain at your location. - Smooth rain cloud animations allow you to see down to the minute what the situation was and is going to be. - Customize the radar images colors, transparency, speed and forecast time. - See at a glance how many minutes you have before the next rain cloud with the handy precipitation graph. - Immediately see the radar after opening the app with lightning fast download speed! - Rain Alert is universal. Buy once and get both the iPhone and the iPad version! - Possible to specify any location in the UK or Ireland that you want to receive alerts for. - With the 'Track me' GPS option your alert is always relevant, wherever you are! - Choose how many minutes in advance you want to be notified. - Do you want to be warned for a light drizzle or a streaming downpour? Specify how heavy the rain needs to be before you get notified. - Don't want to be notified every 5 minutes? You can limit how many notifications you get! - Specify a time limit to prevent notifications from waking you up in the middle of the night. - Choose from 11 rain-related sounds, such as a single drip or an intense thunder. - Touch 'More Info' to see exactly why you are getting the alerts that you are getting. - Set up to 5 different alerts. All the above options can be set for individual alerts so you can set multiple alerts for multiple locations with different sounds. Available for Germany, British Isles, Finland and the Netherlands. Continued use of GPS running in the background can dramatically decrease battery life.

About

SwellMap Boat

Get detailed marine weather forecasts for hundreds of locations across New Zealand. View 7-day sea and wind graphs, tide information, and receive alerts for your favorite spots. Access forecast maps for rain, temperature, wind, and waves.

Highlights
  • 7-day sea and wind forecast graphs
  • Detailed daily forecasts
  • Forecast maps (rain, temp, wind, waves)
  • Save favorite spots
  • Customizable alerts
  • SwellMap boat ratings
Read full description

SwellMap Boat is based on our popular website SwellMap.co.nz providing you with the latest marine weather predictions for hundreds of boating and fishing locations across New Zealand. SwellMap forecasts are highly accurate and reliable. Forecasts are generated using the latest atmospheric and oceanographic numerical models providing updated information four times daily. SwellMap provides the following features: - 7 day sea and wind forecast graphs to make interpreting the boating conditions ahead easy. - SwellMap boat ratings. - Detailed daily forecasts providing ratings, summaries, sea height, sea direction, swell height, swell direction, swell period, chop height, tides, wind, gusts, sea temperature, sunset and sunrise. - Forecast maps of rain/pressure, temperature, wind, wave height, wave period and sea temperature. - Save your favourite spot forecasts. - Alerts providing you with notifications when locations are forecasted to match your preferred boating conditions. == SwellMap Boat Advert Free subscription details == For an advert free experience of the app you can purchase a monthly subscription. Payment will be charged to iTunes account at confirmation of purchase. Subscription will be charged for renewal within 24 hours prior to the end of the current period, and identify the current cost of the renewal. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's account settings on their iPhone/iPad after purchase. Please find full terms and conditions at: https://swellmap-13fc9.firebaseapp.com/swellmap-app-terms.html

Screenshots

Rain Alerts4 screens
SwellMap Boat4 screens

Verdict

The call

The clearest difference is rating: SwellMap Boat at 4.6 against Rain Alerts's 3.0. SwellMap Boat also leads on ratings volume (11 vs 2). Rain Alerts's advantage is ads (none vs shown) and iOS requirement (10.0 vs 14.0). On price, review sentiment, update cadence 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. Rain Alerts sells 1 one-off in-app purchase and SwellMap Boat sells 1 in-app purchase, starting at $1.49 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

SwellMap Boat holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: SwellMap Boat has 11 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 41% of Rain Alerts's written reviews are positive against 34% of SwellMap Boat's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Rain Alerts ships an update every 2 months, SwellMap Boat every 3 months. The most recent releases landed on October 19, 2026 and October 26, 2026 respectively.

Scorecard4 real differences · 6 level
Rain Alerts versus SwellMap Boat: the parameters behind the verdict, then further details
ParameterRain AlertsSwellMap Boat
PriceFreeFree
Rating3.0 (2 ratings)4.6 (11 ratings) — better
Positive reviews41.2% of reviews — better34.1% of reviews
Number of ratings211 — better
Update frequencyEvery 2 months — betterEvery 3 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better14.0
Further details — not scored
Size53 MB16 MB
Age rating4+4+
DeveloperPaul WagenerWesley Warner

Customer experience

Rain Alerts

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews85 reviews
Positive41.2%
Neutral16.5%
Negative42.4%

SwellMap Boat

All ratings7 ratings
Positive71.4%
Neutral0.0%
Negative28.6%
Written reviews44 reviews
Positive34.1%
Neutral13.6%
Negative52.3%

In-app purchases

1 purchases

Rain Alerts

One-time1
  • Full version$1.99
1 purchases

SwellMap Boat

Subscriptions1
  • SwellMap Boat$1.491 Month

Questions

Is Rain Alerts free?
Rain Alerts is free to download, with in-app purchases available.
Is SwellMap Boat free?
SwellMap Boat is free to download, with in-app purchases available.
Which has better reviews, Rain Alerts or SwellMap Boat?
SwellMap Boat is rated higher. Rain Alerts averages 3.0 out of 5 from 2 ratings, while SwellMap Boat averages 4.6 from 11 ratings.
Do Rain Alerts or SwellMap Boat have ads?
SwellMap Boat shows ads; Rain Alerts does not.
Which is updated more often, Rain Alerts or SwellMap Boat?
Rain Alerts ships an update every 2 months, and SwellMap Boat every 3 months. Most recently, Rain Alerts was updated on October 19, 2026 and SwellMap Boat on October 26, 2026.

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