Comparison

RiverApp vs NimbusWx

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

Head to head
About

RiverApp

Access real-time water levels, flows, and temperatures for rivers worldwide. Ideal for sports enthusiasts and professionals, it offers detailed maps, navigability information, and customizable alerts for over 40,000 hydrometric stations.

Highlights
  • Real-time water levels and flows
  • Water temperatures
  • Hydrometric station maps
  • Customizable alerts
  • Whitewater course navigability
  • User-added hazards and courses
Features
Read full description

Get quick access to the latest river levels, flows and conditions across the US and more than 20 other countries worldwide. RiverApp gives you access to one of the world’s most comprehensive hydrometric datasets, with data from over 40,000 monitoring stations. Whether you kayak, canoe, packraft, paddleboard, fly fish, surf rivers, manage irrigation, operate hydropower infrastructure or monitor flood risk, RiverApp helps you stay informed with reliable, easy-to-read river data. FREE FEATURES ‣ Current water levels and flows for over 20,000 rivers ‣ Water temperature data where available ‣ Detailed maps of hydrometric stations and whitewater sections ‣ Custom alerts for each station when a defined level or flow is reached ‣ Favourite stations and whitewater sections for quick access to the latest readings and conditions FREE FEATURES FOR WHITEWATER SPORTS ‣ More than 4,000 referenced whitewater sections ‣ Section conditions based on current water level or flow ‣ Detailed section maps with quick access to put-in and take-out points ‣ Hazards, rapids and other points of interest, including photos where available ‣ Information on difficulty, length and average gradient ‣ Community-based addition and editing of whitewater sections RIVERAPP PREMIUM Unlock additional tools for deeper river monitoring and trip planning: ‣ Historical water level and flow data going back several years ‣ Forecasts for selected stations ‣ Satellite map layers from multiple providers, with comparison tools ‣ Customizable Home Screen Widgets to keep your favourite river gauges visible at a glance ‣ Monthly streamflow statistics to understand seasonal variations and plan river trips at the right time and place DATA SOURCES RiverApp brings together data from over 100 official and public hydrometric sources worldwide, including, among others: NVE California Data Exchange Center Government of Canada — Wateroffice USGS NOAA PEGELONLINE — www.pegelonline.wsv.de HVZ Baden-Württemberg HDN Bayern Kanton Bern Ennskraftwerke Land Kärnten Land Niederösterreich Regione Piemonte HVZ Rheinland-Pfalz Český hydrometeorologický ústav HVZ Sachsen-Anhalt Land Salzburg Scottish Environment Protection Agency Slovak Hydrometeorological Institute Agencija Republike Slovenije za okolje HWZ Steiermark BAFU HNZ Thüringen Land Tirol Shoothill Vigicrues Serveur de données hydrométriques temps réel du bassin Rhône-Méditerranée Land Vorarlberg Bureau of Meteorology — Australia DISCLAIMER RiverApp is an independent application and is not affiliated with the listed organizations unless explicitly stated. RiverApp and the listed data providers shall not be held liable for any errors, omissions, delays or interruptions in the information provided, nor for any loss, injury or damage of any kind resulting from its use. End-user license agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

NimbusWx

Visualize complex weather model data in an easy-to-understand format. Create your own AI weather forecaster and access professional-grade meteorological information.

Highlights
  • Customizable AI weather forecaster
  • Select any coordinates on Earth
  • Compare multiple weather models
  • Save favorite locations
  • View advanced weather metrics
  • Access GFS, RDPS, HRDPS, GDPS, NAM, HRRR, RAP models
Features
Read full description

NimbusWx is a spot forecasting tool that visualizes the numeric model data from the weather computers used by industry experts. It's powered by the incredibly popular website SpotWx, which is used by professionals all over North America and the world. ***New in Version 1.2: Create your own custom AI weather forecaster - powered by chatGPT The difference between NimbusWx and other weather products is that we've lifted the veil on forecasts by giving you access to the raw weather data. That raw data is normally inaccessible because it requires special desktop software to open and interpret, we take that data and turn it into a human friendly visual format so you can make forecasts like a pro. NimbusWx features include: - Customizable AI weather forecaster. You can control what type of weather data you want to know about, and how the forecaster behaves. - Select any coordinates on Earth. - View and compare multiple weather models for your coordinates. - Save your favourite places for fast viewing. - See the models simulated altitude, and spatial / temporal resolution. - View advanced weather metrics. Models currently available on the mobile version: - GFS (Global Forecast System) - RDPS (Regional Deterministic Prediction System) - HRDPS Continental (High Resolution Deterministic Prediction System) - HRDPS 1km West (High Resolution Deterministic Prediction System) - GDPS (Global Deterministic Prediction System) - NAM (North American Mesoscale Model) - HRRR (High-Resolution Rapid Refresh) - RAP (Rapid Refresh) End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

RiverApp4 screens
NimbusWx4 screens

Verdict

The call

The clearest difference is review sentiment: RiverApp at 79% against NimbusWx's 33%. RiverApp also leads on rating (4.8 vs 1.5) and ratings volume (5.5K vs 2). NimbusWx's advantage is update cadence (every 5 days vs every 3 weeks). 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. RiverApp sells 3 in-app purchases, starting at $0.99 per month and NimbusWx sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

RiverApp holds the better App Store score, 4.8 against 1.5. That said, the two scores are not equally well evidenced: RiverApp has 5.5K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 79% of RiverApp's written reviews are positive against 33% of NimbusWx's.

UpkeepUpdate frequency

RiverApp ships an update every 3 weeks, NimbusWx every 5 days. The most recent releases landed on October 17, 2026 and October 12, 2026 respectively.

Scorecard5 real differences · 6 level
RiverApp versus NimbusWx: the parameters behind the verdict, then further details
ParameterRiverAppNimbusWx
PriceFreeFree
Rating4.8 (5.5K ratings) — better1.5 (2 ratings)
Positive reviews79.3% of reviews — better33.3% of reviews
Number of ratings5.5K — better2
Update frequencyEvery 3 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
Best chart rank#110 — better—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.017.0
Further details — not scored
Size56 MB8 MB
Age rating4+4+
DeveloperFlorian BessiereBenjamin Pearman

Customer experience

RiverApp

All ratings5,489 ratings
Positive96.2%
Neutral2.1%
Negative1.7%
Written reviews290 reviews
Positive79.3%
Neutral5.5%
Negative15.2%

NimbusWx

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews12 reviews
Positive33.3%
Neutral16.7%
Negative50.0%

Bugs and requests

RiverApp

Reported bugs

3 issues
  • Map feature not working due to internet connection issues
  • Horizontal lines and color indicators disappearing from graphs
  • Inconsistent or unreliable data updates

Requested features

5 requests
  • Add more river coverage, especially in underserved regions
  • Improve forecast and prediction capabilities
  • Implement a journaling or note-taking feature
  • Allow for customizable alerts and notifications
  • Add support for additional measurement units (e.g., millimeters)

NimbusWx

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

RiverApp

Subscriptions2
  • Premium - 1 month subscription$0.991 Month
  • Premium - 1 year subscription$6.991 Year
One-time1
  • RiverApp Premium$29.99
1 purchases

NimbusWx

Subscriptions1
  • All Access7 Days trial$1.991 Month

Questions

Is RiverApp free?
RiverApp is free to download, with in-app purchases available.
Is NimbusWx free?
NimbusWx is free to download, with in-app purchases available.
Which has better reviews, RiverApp or NimbusWx?
RiverApp is rated higher. RiverApp averages 4.8 out of 5 from 5.5K ratings, while NimbusWx averages 1.5 from 2 ratings.
Do RiverApp or NimbusWx have ads?
Neither RiverApp nor NimbusWx shows ads.
Which is updated more often, RiverApp or NimbusWx?
RiverApp ships an update every 3 weeks, and NimbusWx every 5 days. Most recently, RiverApp was updated on October 17, 2026 and NimbusWx on October 12, 2026.

Other comparisons