Built for the water
Every feature designed by anglers who'd rather be fishing. Here's what Riffle puts in your pocket.
Near Real-Time Stream Conditions
USGS flow, temperature, gage height, turbidity, dissolved oxygen, and pH — all interpreted through a fly fishing lens. Not just numbers: fishability scores, condition modifiers, and specific fly advice.
- ✓ Fishability score (0-100) with color-coded ring
- ✓ Condition modifiers with fly advice
- ✓ Historical flow percentile (10-year context)
Hatch Predictions
GDD-based emergence timing tuned to actual water temperatures and snowpack data. 41 insect species with calibrated degree-day thresholds applied to real USGS gauge data.
- ✓ 41 species with GDD thresholds
- ✓ Snowpack & barometric modifiers
- ✓ AI-researched hatch charts for 700+ rivers
Window Alerts
Riffle synthesizes USGS conditions, NOAA weather, flow projections, and hatch data into a 7-day fishing forecast. When a window opens, you'll know.
- ✓ 7-day composite fishability forecast
- ✓ Water temp projection model
- ✓ Subscribe to alerts per river
Voice-Powered Trip Log
Speak naturally about your day and AI parses individual fish, flies, conditions, and techniques. Auto-captured USGS conditions on every trip build your personal database.
- ✓ Voice dictation with AI parsing
- ✓ Individual fish records
- ✓ Condition correlation & insights
AI Fish ID & River Vision
Photograph your catch and AI extracts species, size, and condition. Plus three-mode River Vision: snap a bug for hatch ID, photograph a run for structure analysis, or capture the surface for drift reading.
- ✓ Species ID with confidence scoring
- ✓ Personal best detection
- ✓ Three-mode River Vision
Friends Only
No public feed. No public profiles. See your friends' trips, compare on leaderboards, share conditions — all within a private circle. Built for anglers who care about their waters.
- ✓ Private friend connections
- ✓ Season leaderboards
- ✓ Guide endorsement system
And More
The details that matter
Fly Box
Save patterns to your digital fly box. Browse categories, search the library, or add custom patterns.
Regulations
AI-researched regulations for every river — seasons, gear restrictions, creel limits, special sections, and closures.
Report Sources
Curated links to fly shops, guides, and agencies publishing fishing reports for each river.
Flow Forecasts
NWS, Bureau of Reclamation, and USACE flow forecasts — see where flows are headed.
Snowpack Data
SNOTEL SWE data and snow-water-equivalent vs. median — know when runoff will suppress hatches.
Fire & Air Quality
Active wildfire tracking, post-fire debris flow risk, and AQI monitoring for your watershed.