Comparison

Waterscope Weather vs FD Viewer

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

Head to head
About

Waterscope Weather

This weather app provides detailed water-centric conditions like tides, wave heights, and water temperatures. It also includes forecasts for air temperature, wind, and satellite imagery, drawing data from NOAA and NWS.

Highlights
  • Tide predictions
  • Wave height and water temperature
  • Wind speed and air temperature
  • Moon phase and position
  • Satellite imagery
  • Hurricane forecasts
  • Onshore observations
Read full description

Waterscope is a weather app for people who love being around water. Whether you're surfing, fishing, boating, or just taking the dog for a walk on the beach, Waterscope will keep you informed about your local conditions. The data presented comes from the National Oceanic and Atmospheric Administration (NOAA) and National Weather Service (NWS). This app would not be possible without the scientific contributions from the people at these valuable public institutions. The app uses a series of screens to present this information: HOME When you launch Waterscope, you'll be presented with a screen that shows a graph of high and low tides for the nearest measuring station. Below that are wave heights and water temperatures for the closest NOAA buoy. These are followed by wind speed and air temperature measurements for a nearby NWS weather station. Above the graphs, you'll see the current phase of the Moon and its position on the horizon. Below you'll see the sun's position relative to your location on Earth. The clock at the bottom shows the current time, or the time for past data samples and future forecasts. Tap on the clock to scroll back to the current time. Tap on any large blue ring to show more information. Smaller blue rings make adjustments to what you're currently viewing. Tapping on the icon in the upper-left corner will show an overlay that explains the symbols and markers. EARTH The Earth view shows the last 24 hours of satellite imagery near your current location (the small blue dot is you!) Tap the + button to see a larger version of the latest image. The hurricane symbol at the top of the view will show the latest forecasts from the National Hurricane Center. MOON The Moon view shows the phase and location of the Moon for the next year. The white dot shows the height above the horizon, and when you align the blue arrow with the centerline and look up you'll see Earth's biggest satellite :-) SEA This view of the sea shows markers for observations collected by the National Data Buoy Center. The arrow points in the directions waves are heading: tap it to show water temperature, wave height, and an average period between waves. To make any buoy's data show up on the home screen, tap the heart icon. LAND Like the view of the sea, but with onshore observations collected by the National Weather Service. The arrow shows wind direction and tapping the marker shows the air temperature, wind speed with gusts, and barometric pressure. Tap the heart to add it to home. TIDE This view shows nearby tide stations: tap on any marker to get the current prediction at that location. Like the other map views, the tide station can be added to the main screen using the heart icon. FORECAST If you move forward in time, you'll see a forecast for air temperature and conditions. Tap on the conditions to get an expanded view that includes wind speed and direction.

About

FD Viewer

Access and read detailed text weather products from the National Weather Service. This app reformats Area Forecast Discussions into a user-friendly interface, allowing easy navigation through sections and offices.

Highlights
  • Read Area Forecast Discussions (AFDs)
  • View NWS offices on a map
  • List offices by distance or alphabetically
  • Paginated section navigation
  • User-friendly reformatting of weather data
Features
Read full description

Area Forecast Discussions (AFDs) are a text weather product released by the National Weather Service (NWS) Weather Forecast Offices to inform and elaborate on the public forecast. FD Viewer presents each office on a map and also displays a list of offices sorted by distance or alphabetically. Selecting an office will display the latest Forecast Discussion paginated by section. Swipe right or left to navigate through each section. This app merely reformats the web-based AFD information in a user-friendly format. All credit for the forecast information goes to all the hardworking people at the NWS. TBD: I plan to support in-app glossary popups that will describe some of the more arcane acronyms and phrases used in the forecast text.

Screenshots

Waterscope Weather4 screens
FD Viewer3 screens

Verdict

The call

The clearest difference is rating: FD Viewer at 5.0 against Waterscope Weather's 4.2. FD Viewer also leads on update cadence (every 2 weeks vs every 5 months). Waterscope Weather's advantage is ratings volume (24 vs 1). On price, ads, in-app purchases and monetization model 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

FD Viewer holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Waterscope Weather has 24 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Waterscope Weather ships an update every 5 months, FD Viewer every 2 weeks. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 7 level
Waterscope Weather versus FD Viewer: the parameters behind the verdict, then further details
ParameterWaterscope WeatherFD Viewer
PriceFreeFree
Rating4.2 (24 ratings)5.0 (1 ratings) — better
Positive reviews47.1% of reviews—
Number of ratings24 — better1
Update frequencyEvery 5 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size5 MB2 MB
Age rating4+4+
DeveloperThe IconfactoryNeil Cormia

Customer experience

Waterscope Weather

All ratings24 ratings
Positive75.0%
Neutral8.3%
Negative16.7%
Written reviews17 reviews
Positive47.1%
Neutral17.6%
Negative35.3%

FD Viewer

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Waterscope Weather

No in-app purchases

None

FD Viewer

No in-app purchases

Questions

Is Waterscope Weather free?
Waterscope Weather is free to download, with no in-app purchases.
Is FD Viewer free?
FD Viewer is free to download, with no in-app purchases.
Which has better reviews, Waterscope Weather or FD Viewer?
FD Viewer is rated higher. Waterscope Weather averages 4.2 out of 5 from 24 ratings, while FD Viewer averages 5.0 from 1 ratings.
Do Waterscope Weather or FD Viewer have ads?
Neither Waterscope Weather nor FD Viewer shows ads.
Which is updated more often, Waterscope Weather or FD Viewer?
Waterscope Weather ships an update every 5 months, and FD Viewer every 2 weeks. Most recently, Waterscope Weather was updated on October 24, 2026 and FD Viewer on October 7, 2026.

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