Know Where, When and What to Fly Fish
Built for Western Anglers. By Western Anglers.
FlyGuysNLies goes deep on Western rivers. River verdicts and details give you everything you need for a successful trip on the water. Hatch charts show what’s likely to be active, and fly picks give you practical patterns to start with.
- River Verdicts: Excellent, Good, Fair, Poor, or Unfishable at a glance.
- Fishing Forecast: Every day rated Excellent to Poor with the hatch to expect — not just weather.
- Hatch Alerts: River-specific hatch timing, and a push the moment a hatch starts.
- Fish With Your Crew: Invite friends, track each other’s sessions, and compete on the leaderboard.
Real Data, Not Guesswork
Every flow, forecast, and hatch alert is powered by live data from USGS, state Divisions of Water Resources (DWR), the Bureau of Reclamation (USBR), and NOAA — the same sources professional guides check before a trip.
Built for the Fishing Decision
FlyGuysNLies Mobile helps answer whether a river is worth fishing today, what is likely hatching, and which flies or rigs match the current conditions.
Know WHERE to Fish
Should you fish the South Platte today? Our River Verdict system uses live river data to give you a simple answer: Excellent, Good, Fair, Poor, or Unfishable. No more guessing if the river is blown out.
- River Verdicts: Rates fishability at a glance using current conditions.
- Western Depth: Deep coverage across CO, WY, MT, UT, and NM.
- Real-Time Data: USGS, DWR, USBR flows, water temps, and clarity (when available) every 30 minutes.
- Wade or Float: See which access type conditions favor today.
Know WHEN to Go
Smart alerts tell you the moment your favorite river’s conditions change.
- Fishing Forecast: Every day rated Excellent to Poor with the hatch to expect — pick the best day before you go.
- Smart Alerts: Verdicts, hatches, flow, temperature, closures, trends and more — know the moment your river turns on.
- Flow History: 7 days free, 30 days with Premium — spot trends before they hit.
- Free to Start: River conditions, hatch data, favorite rivers, and local fishing logs are free to use.
Know WHAT’s Hatching
River-specific hatch charts — not generic regional data. See what’s hatching right now on your river, with 12-month calendars showing peak emergence for every insect.
- River-Specific Timing: Hatch charts built for each river, not one-size-fits-all.
- Free Hatch Data: Hatch timing and insect activity are free in FlyGuysNLies Mobile.
- Full Insect Library: ID photos, life stages, and emergence patterns.
- Current Activity: See what’s active today, not just what’s expected this month.
Match the Hatch Instantly
Stop guessing what to tie on. FlyGuysNLies connects today’s conditions to the exact fly patterns that are working — grouped by dries, nymphs, emergers, and streamers.
- Dynamic Fly Picks: Recommendations change with conditions, not just season.
- Confidence Ratings: See which patterns are high-match vs. worth a try.
- Add to Fly Box: Build your box based on what’s working on your rivers.
- Complete Fly Library: Photos, sizes, and seasons for every pattern.
Your Guide in Your Pocket
Get a complete rig recommendation built for today’s conditions — the same setup a guide would tie on. No more guessing at leader length or tippet size.
- Condition-Based Rigs: Nymphing, dry fly, or streamer — matched to current flows and hatches.
- Fly Pairings: Point fly and dropper combos that work together.
- Full Specs: Leader length, tippet size, indicator depth — everything you need.
- Premium Planning: Unlock rig recommendations, unlimited favorites, all alert types, 30-day flow history, unlimited fly boxes, and cloud sync.
Your Personal Fishing Journal
Log every trip. Track what worked. Build a history that makes you a better angler over time.
- Unlimited Logs: Fish counts, ratings, conditions, and notes — all free.
- Auto-Fill Conditions: Flow and water temp pulled automatically from your river.
- Photo Journal: Attach photos to remember your best days on the water.
- What Worked: See your past logs on any river before you fish it again.
Everything You Need. Nothing You Don’t.
A complete angler’s reference built into one app — no ads, no bloat, no coverage you’ll never use. Works offline at the river.
- Complete Fly Library: Photos, sizes, and seasonal usage for every pattern.
- Full Insect Library: ID photos and life stage details.
- Fish Species Profiles: Identification, habitat, and behavior.
- Essential Knots: Step-by-step tying instructions.
- Offline Mode: All reference content works without cell service.
Fish With Your Crew
Every day on the water counts toward something. Log your trips to earn achievements and climb the angler ranks — then bring your buddies along to keep up, compare, and share. It’s your crew, not a feed full of strangers.
- Earn Your Rank: Log trips to unlock achievements and rise through the angler ranks, from first cast to World Class.
- Invite Your Buddies: Share a QR code, a 6-digit code, or a text straight from your contacts — and your contacts never leave your phone.
- Friend Activity Feed: See when the people you fish with log a trip, land a personal best, or earn a badge.
- Friends-Only Leaderboard: A little friendly competition — trips, rivers, biggest fish, and badges, this year or all time.
- Share the Day: Turn any catch, river verdict, or trip into a story card — keep your spot hidden or show it off, your call.
Yes. The free tier includes 3 favorite rivers, real-time river verdicts, hatch charts, 7-day flow history, 3 custom fly boxes, our complete fly-pattern library, all knots, and unlimited local fishing logs. The free tier does not expire, and downloading the app does not start a subscription.
We focus on Western trout water across Colorado, Wyoming, Montana, Utah, and New Mexico — from famous tailwaters like the South Platte, Frying Pan, and San Juan to freestone gems like the Roaring Fork and Cache la Poudre. Every river includes verdicts, flow data, hatch charts, and fly recommendations.
Three things define the app: (1) River Verdicts — fishability rated from Excellent to Unfishable at a glance. (2) The full planning workflow — conditions, hatches, fly recommendations, and rig setup live in one app. (3) Western depth — coverage is focused on Western rivers across Colorado, Wyoming, Montana, Utah, and New Mexico. Smart alerts, flow history, and fly tools are split clearly between Free and Premium.
Yes — and it’s free. Invite your fishing buddies with a QR code, a 6-digit code, or a text from your contacts. Once they’re in, you’ll see their trips, personal bests, and badges in your activity feed, and you can stack up trips, rivers, and biggest fish on a friends-only leaderboard. It’s friends-only by design — there’s no public feed, so what you share stays with the people you invite. You can also turn any catch or river verdict into a story card to share.
It’s our unique fishability rating that analyzes current flow, recent trends, water temperature, and historical patterns to give you a clear answer: Excellent, Good, Fair, Poor, or Unfishable. Should you make the drive? Now you know before you leave the house.
Premium is $14.99 per year on the US App Store. Eligible users can try Premium free for 7 days. Premium unlocks rig recommendations, unlimited favorite rivers, all alert types, 30-day flow history, unlimited fly boxes, and cloud sync. The trial renews into a paid subscription unless canceled before the store’s deadline. Availability and prices can vary by region and store; confirm the terms shown before subscribing. You can keep using the free features without starting a trial.
Yes! FlyGuysNLies Mobile is available as a free download on both the Apple App Store and Google Play Store.
Yes. Flies, insects, knots, and reference content are bundled with the app — no cell service required. Real-time verdicts need a connection, but you can check conditions before you leave service and your local reports are always available offline.
Your data stays yours. Fishing reports stored locally never leave your device. If you enable cloud sync, all data is encrypted in transit and at rest. We don’t sell your information or track your location beyond what’s needed for nearby river calculations. You can export or delete your data anytime.