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River Ranker App Icon

Fish Smarter,
Not Harder

Find nearby streams, respect the river, track your adventures.

Free with ads • Ad-free State Packs $9.99

Find Nearby
Real-time
Respect River
Upper Sacramento Lower Sacramento McCloud River Hat Creek Fall River Pit River Battle Creek Deer Creek Clear Creek Shasta River Truckee River Upper Truckee Little Truckee Rubicon River Martis Creek Prosser Creek American River North Yuba Middle Yuba South Yuba Lower Yuba Middle Fork Feather Yellow Creek Trinity River Klamath River Smith River Scott River Salmon River Eel River South Fork Eel Mad River Mattole River Van Duzen River Redwood Creek Stanislaus (North Fork) Lower Stanislaus Mokelumne River North Fork Mokelumne Tuolumne River Clavey River Merced River South Fork Merced San Joaquin River Cosumnes River Calaveras River Russian River Garcia River Navarro River Gualala River Napa River Cache Creek Putah Creek San Lorenzo River Carmel River Big Sur River Pescadero Creek Owens River Hot Creek Lee Vining Creek Rock Creek Rush Creek Convict Creek Bishop Creek Mammoth Creek East Fork Carson West Fork Carson Kern River Little Kern Kings River Upper Kings Lower Kings Golden Trout Creek Sespe Creek Deep Creek Mill Creek Upper Sacramento Lower Sacramento McCloud River Hat Creek Fall River Pit River Battle Creek Deer Creek Clear Creek Shasta River Truckee River Upper Truckee Little Truckee Rubicon River Martis Creek Prosser Creek American River North Yuba Middle Yuba South Yuba Lower Yuba Middle Fork Feather Yellow Creek Trinity River Klamath River Smith River Scott River Salmon River Eel River South Fork Eel Mad River Mattole River Van Duzen River Redwood Creek Stanislaus (North Fork) Lower Stanislaus Mokelumne River North Fork Mokelumne Tuolumne River Clavey River Merced River South Fork Merced San Joaquin River Cosumnes River Calaveras River Russian River Garcia River Navarro River Gualala River Napa River Cache Creek Putah Creek San Lorenzo River Carmel River Big Sur River Pescadero Creek Owens River Hot Creek Lee Vining Creek Rock Creek Rush Creek Convict Creek Bishop Creek Mammoth Creek East Fork Carson West Fork Carson Kern River Little Kern Kings River Upper Kings Lower Kings Golden Trout Creek Sespe Creek Deep Creek Mill Creek

How It Works

1

Find Nearby Waters

Discover rivers and creeks close to you with real-time conditions.

2

Respect the River

Know when conditions are too stressful for fish - high temps, low flows.

3

Track Your Trips

Log catches, add notes, save spots, and build your fishing history.

Everything You Need to Know

Professional guide knowledge without the $500/day price tag.

Public Flow Data Sources

Public Flow Data Sources

Real-time data from USGS and other public sources. Flow, temperature, turbidity, updated every 15 mins.

State Pack Premium Data

Get ad-free experience plus monthly guides, hatches, and hot spots for your state.

Find Nearby Waters

Discover rivers and creeks close to home. Works nationwide with 13,000+ gauged waters.

Complete Trip Tracking

Complete Trip Tracking

Track every adventure - log catches, add detailed notes, save spots, and build your personal fishing journal.

Conservation-First Ratings

Conservation-First Ratings

5-bubble system considers fish health. Avoid stressed conditions, fish when it's sustainable.

Real-Time Monitoring

Current water conditions updated every 15 minutes with trend indicators and alerts.

Why I Built River Ranker

"

As an angler, I built River Ranker to solve my own problem: finding fishable streams nearby without wasting gas or harming stressed fish. I wanted to respect the river by avoiding fishing when flows are too low or temperatures too high.

River Ranker helps you discover rivers and creeks nearby, with real-time data from USGS and other public flow sources. Know before you go whether conditions are right, and find new waters close to home.

Beyond just checking conditions, you can track your fishing trips - log catches, add notes, save spots, and build your personal fishing history. It's the tool I wanted as an angler who cares about both catching fish and conservation.

"Fish when conditions are right. Stay home when they're not. Respect the resource, catch more fish."

— River Ranker Creator

Trusted by Serious Anglers

4.9/5 Rating from early adopters

★★★★★

"Finally, an app that actually understands fly fishing flows. I used to check 4 different sites before leaving the house. Now I just check River Ranker."

MJ
Mike Jenkins
Montana Guide
★★★★★

"The 5-bubble rating system is genius. Saved me a 3-hour drive to the Truckee when it was blown out last week. State packs are totally worth it."

AS
Sarah Alston
Weekend Warrior
★★★★★

"I love the conservation focus. Knowing when the water is too warm to fish safely is a game changer for ethical angling. Highly recommend."

DK
David Kim
Trout Unlimited Member

Start Free, Go Premium by State

Use River Ranker free with ads, or unlock ad-free premium content state by state.

Basic Version

FreeForever
  • All 13,000+ rivers nationwide
  • Real-time flow monitoring
  • Basic trip tracking & catch logs
  • Supported by ads
Download Free
RECOMMENDED

State Pack

$9.99per state
One-time purchase
  • No ads in that state
  • Premium fly fishing information
  • Monthly fishing guides
  • Seasonal hatches & flies
  • GPS hot spots
  • Lifetime updates
Get State Pack

State Pack Availability

Available: California
🔄Coming Soon: MT, OR, CO, WY, ID

Our small team is working to research and add premium data for all 50 states!

Compare the Value

One fishing guide: $500/day
One guidebook: $30
State Pack: $9.99 forever

Help Us Improve River Ranker

Found a bug? Inaccurate data? Want us to add a river? We need your help!

  • Report bugs and data inaccuracies
  • Request new rivers and creeks
  • Share local knowledge

Find the "Report" button at the bottom of every river listing in the app.

📢

Your Voice Matters

Your reports help our small team prioritize which waters to research and improve next.

Start Fishing Smarter Today - It's Free!

Join thousands of anglers using River Ranker to find perfect fishing conditions.

Download on the
App Store