Best Streamflow Apps

208+ iOS apps curated and reviewed

4.6 avg rating
18 free apps
Updated June 2026

The best streamflow apps on iPhone average 4.6★ across 208+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.

Compare top Streamflow Apps (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Rivercast: River Levels USARivercast: River Levels USAFree4.7★ (11K)YesYesOct 2026
2GaugeWatcherGaugeWatcherFree5.0★ (3)NoNoSep 2026
3RiverApp - River levelsRiverApp - River levelsFree4.8★ (5.4K)NoYesOct 2026
4River Levels & FlowsRiver Levels & Flows$2.994.6★ (2.6K)NoNoOct 2026
5Blue Liner FlowsBlue Liner FlowsFree4.7★ (39)NoYesSep 2026
6FlowMap - Fishing informationFlowMap - Fishing informationFree4.0★ (4)NoYesAug 2026
7IPTV Smart Player: StreamflowIPTV Smart Player: StreamflowFree—NoYesSep 2026
8Snoflo: Live Snow & River MapSnoflo: Live Snow & River MapFree—NoYesSep 2026

Top Picks for Streamflow

Rivercast: River Levels USA#1

Rivercast: River Levels USA by Juggernaut Technology, Inc.

NOAA Forecasts & Flood Alerts
Editor's Choice
☀️ Weather
4.7😊(11K ratings)
FreeAdsIn-App Purchases
Rivercast: River Levels USA screenshot 1
Rivercast: River Levels USA screenshot 2
Rivercast: River Levels USA screenshot 3
Rivercast: River Levels USA screenshot 4
Rivercast: River Levels USA screenshot 5
Rivercast: River Levels USA screenshot 6

Monitor river levels, flow rates, and flood warnings with real-time data and forecasts. Get custom alerts for your favorite waterways and visualize trends with interactive graphs. Essential for anyone living, working, or recreating near water.

What We Love

  • 🚀 Great app
  • 👍 Easy to navigate
  • 👍 Helpful for monitoring river levels
  • 👍 Useful for fishing and boating
  • 👍 Accurate and up-to-date information
  • 👍 Necessary for those living near rivers
  • 👍 Excellent customer support

Room to Improve

  • 🐛 Data not always up-to-date
  • 🔒 Paid subscription required for full functionality
  • 🔒 Can't view more than 30 hours of data without premium
  • 🔒 Have to pay for each device
  • 🔒 Charging for free data available elsewhere
RiverApp - River levels#3

RiverApp - River levels by Florian Bessiere

Real-time river conditions
Worth Considering
☀️ Weather
4.8😊(5.4K ratings)
FreeIn-App Purchases
#78in Weather
RiverApp - River levels screenshot 1
RiverApp - River levels screenshot 2
RiverApp - River levels screenshot 3
RiverApp - River levels screenshot 4
RiverApp - River levels screenshot 5
RiverApp - River levels screenshot 6

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.

What We Love

  • 👍 Easy to use
  • 🗺️ Comprehensive coverage of rivers
  • 📊 Useful data and visualizations
  • 🔔 Helpful alerts and notifications
  • 💰 Affordable premium upgrade

Room to Improve

  • 🐛 Occasional inaccurate or outdated information
  • 🔍 Missing some important river gauges
  • 💬 Lack of communication from developers
  • 🗺️ Incorrect geographic information for some areas

More Streamflow apps to explore

FAQ about Streamflow

What are the best streamflow apps for iPhone?
Rivercast: River Levels USA tops our streamflow apps ranking as of June 2026, with a 4.7-star average from 11K App Store ratings, and it's free to download.
Yes — 18 of the top streamflow apps we rank are free to download, including Rivercast: River Levels USA and GaugeWatcher.
Rivercast: River Levels USA shows ads and offers in-app purchases, according to its App Store listing as of June 2026.
We track 208+ streamflow apps on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.

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