River Background
River Ranker App Icon

River Ranker

Fish Smarter,
Not Harder

Your personal research assistant and fishing diary — backed by live river data, built by one angler who does the homework.

Be the first to know when we launch. No spam, ever.

Get notified when we launch on iOS

How It Works↓

Free with ads • Ad-free State Packs $9.99

• Live Data
• Researched Intel
• Private by Design

Built on Public Data You Can Trust

USGS
Water
Data
NOAA
Weather
Service
CDEC
CA Water
Data
USBR
Bureau of
Reclamation
LADWP
LA Water
Dept
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

No more checking four websites before you leave the house.

1

Know Before You Go

Every river is scored using live USGS gauge data — flow, temperature, gage height — updated every 15 minutes. The 5-bubble rating tells you at a glance if it's worth the drive. No more showing up to blown-out water.

2

Your Research, Done For You

Tap into any river and get the full picture: flow trend charts, water temperature, weather — and with a State Pack, monthly guides, seasonal hatches, access info, regulations, and GPS hot spots. All researched by hand, one river at a time.

3

Your Water, Your Story

Log your trips, mark your spots, note what worked. River Ranker is your personal fishing diary — and it stays personal. Your catches, your notes, your favorite spots are never shared with other users. This isn't a social network.

Built by One Angler Who Does the Research

River Ranker is part research assistant, part fishing diary. Live conditions, hand-researched intel, and a private journal — all in one place. Nothing is shared. Everything is yours.

Live River Scores

Live River Scores

Every river scored by real-time conditions — flow, temperature, gage height — so you never make a drive you'll regret. Updated every 15 minutes from USGS gauges.

Researched Fishing Intel

Monthly guides, seasonal hatches, species profiles, regulations, and access details — reviewed and validated for every river. Like having a friend who fishes every river and takes good notes.

Your Private Fishing Diary

Log catches, add photos, write notes, mark GPS spots. Build a personal record of every trip. Your data stays on your device — no profiles, no sharing, no social feed.

Conservation-First Ratings

Conservation-First Ratings

The 5-bubble system factors in fish health. If water temps are stressing fish or flows are dangerously low, you'll know before you wet a line. Fish responsibly, fish more often.

GPS Hot Spots & Access

Curated access points and spots with coordinates. Where to park, where to wade in, what to expect. Your secret spots stay secret.

Flow Alerts

Set a threshold on any gauge. Get a push notification the moment your favorite river hits the sweet spot. Never miss the window again.

River Ranker List View

Know Before You Go

Stop Guessing.
Start Knowing.

Every river near you, scored by real-time conditions. The 5-bubble rating system combines flow, temperature, and distance so the best water rises to the top — and you stop wasting drives on blown-out rivers.

  • ✓Real-time fishability scores, updated every 15 min
  • ✓Filter by flow, species, or distance
  • ✓Favorites watchlist for rivers you care about
  • ✓Flow alerts — get notified when conditions are right
River Detail View

Your Research, Done

Like Having a Local's
Notebook

Every river page is packed with detail — the kind you'd get from a friend who fishes that water every week. I review and validate every piece of content, because I know what it's like to show up unprepared.

  • ✓Live flow (CFS) & 7-day trend charts
  • ✓Water temperature monitoring
  • ✓Access info & directions to put-ins
  • ✓Regulations, species, and seasonal hatches
Trip Tracking View

Your Private Record

A Fishing Diary
That's Actually Private

Every trip, every catch, every note — saved on your device, shared with nobody. Build your personal fishing history over seasons and years. Find patterns in your own data. Remember what worked.

  • ✓Log catches with photos and fly patterns
  • ✓Mark GPS spots — yours and only yours
  • ✓Monthly guides and seasonal hatch charts
  • ✓Export your data anytime as CSV

Why I Built River Ranker

“

I built River Ranker because I was tired of the routine — checking USGS, pulling up weather, digging through forum posts, reading regulation PDFs — all just to figure out if a river was worth the drive.

I'm one person. I fish, I research, and I build this app. Every monthly guide, every hatch chart, every access note — I review and validate before it goes live. When you buy a State Pack, you're getting the notebook I wish I'd had years ago.

River Ranker isn't a social network. Your spots are yours. Your catches are yours. Your notes never leave your phone. It's a private research tool and fishing diary, built by someone who actually uses it every week.

I'm always adding more rivers, more detail, more states. If you care about doing your homework before you hit the water, this is the app I built for both of us.

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

— Kaydin, Solo Developer & Angler

Your Data Stays Yours

River Ranker is built different. There are no profiles, no followers, no “trending rivers” giving away your water.

Private by Default

Your catches, spots, notes, and trip history are stored on your device. They're never uploaded, never shared, never sold.

No Social Network

No accounts, no followers, no feeds. River Ranker is a tool, not a platform. Your fishing stays between you and the river.

Built in the Open

River Ranker is in early release. I'm a solo developer shipping fast, researching constantly, and improving every week. Your feedback shapes what comes next.

Start Free, Go Deeper by State

Use River Ranker free with ads, or unlock the full research notebook for your state.

Free

$0
  • Rivers across California — more states coming
  • Real-time flow & temperature monitoring
  • 5-bubble fishability scores
  • Trip tracking & catch logs
  • Flow alerts
  • Supported by ads
Join Waitlist
RECOMMENDED

State Pack

$9.99per state
One-time purchase • yours for life
  • Remove ads for that state
  • Monthly fishing guides — what to fish and when
  • Seasonal hatches & recommended flies
  • GPS hot spots with access directions
  • Species profiles & regulations
  • New content added regularly as I research more
Join Waitlist

State Pack Availability

California is live. More states are in research now.

Available
California
California
Available
Oregon
Oregon
Coming Soon
Colorado
Colorado
Coming Soon
Montana
Montana
Coming Soon
Wyoming
Wyoming
Coming Soon
Idaho
Idaho
Coming Soon

Help Me Make It Better

Found a bug? Inaccurate data? Want me to add a river? I read every report personally.

  • • Report bugs and data inaccuracies
  • • Request new rivers and creeks
  • • Share local knowledge — it helps me research faster

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

→

One Person, Listening

Your reports go directly to me. Every one helps prioritize which rivers get researched next.

Be First on the Water

Join the waitlist to get early access and exclusive updates.

Be the first to know when we launch. No spam, ever.