Flowy: River Levels & Flows
Live USGS gauges + reports
Only for iPhone
$5.99 · Designed for iPhone. Not verified for macOS.
iPhone
Every report is posted from within 100 feet of the water. That's the whole idea.
Know the flow before you go.
Flowy maps live streamflow from 15,000+ USGS river gauges across the United States — plus anonymous condition reports from people standing at the water, verified riverside.
THE RIVER, LIVE
- Every USGS streamgage on one beautiful map, colored by flow and labeled with current CFS
- Tap any gauge: current flow, gage height, last-updated time, and a 14-day chart with 15-minute resolution
- Animated river lines show you the water, not just the dots
- Nearby flowing gauges surface automatically, with distance
RIVERSIDE-VERIFIED REPORTS
- Condition reports can only be posted within about 100 feet of a river or gauge — every report comes from someone who is actually there
- Clear or muddy, glassy or choppy, rising or dropping, debris, crowds, wadeable — tap the words, done in 10 seconds
- Each report is stamped with the weather at that moment
- Anonymous by design: reports show a general area, never an exact spot
WEEK IN REVIEW
- Play back the past seven days of gauge conditions and watch rises move through whole basins
FOR ANGLERS, PADDLERS, AND RIVER PEOPLE
Fly fishing at dawn? Check clarity and flow before you drive. Kayaking or rafting? See what the gauge did overnight. Crossing a creek on a backpacking route? Know before you go.
NO NONSENSE
- $5.99 once — no subscription, no ads, no accounts, no trackers
- Your logbook stays on your phone
- Gauge data from public USGS feeds
Flowy is built by the team behind Snoflo.org. Data is provisional and for general information — always verify conditions at the water.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Snoflo.org LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Contact Info
- User Content
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Snoflo.org LLC
- Size
- 32.5 MB
- Category
- Weather
- Compatibility
Requires iOS 16.6 or later.
- iPhone
Requires iOS 16.6 or later. - Mac
Requires macOS 13.5 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Snoflo.org LLC
