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Misty dawn on a Tennessee lake with crappie boat silhouetted against golden sunrise

Built for Crappie Fishermen

The Only Fishing App Built for Crappie.

Lake intelligence, thermocline tools, solunar forecasts, and a map that shows verified attractor coverage by lake.

Not bass. Not walleye. Crappie.

Free during beta · No credit card required

Free
During beta
Clear
Coverage status
Android
Open beta next
100%
Crappie Focused

Features

Everything a Crappie Fisherman Needs

Purpose-built tools that help you find, pattern, and catch more slabs on every trip.

Attractor Map

Check whether a selected lake has verified attractor coverage. SlabHaul does not show unverified locations.

Weather Dashboard

Barometric pressure trends, wind visualization, moon phases, and hourly forecasts, all tuned for crappie behavior patterns.

Lake Conditions

Real-time water levels vs. normal pool elevation, USGS stream gauge data, and generation schedules from TVA and Army Corps dams.

Thermocline Predictor

Water temperature stratification analysis that tells you exactly what depth crappie are holding at. No more guessing.

Bait Recommendations

Lure and color suggestions based on current conditions, seasonal patterns, water clarity, and what's producing right now.

Spider Rig Calculator

Physics-based depth calculator for spider rigging. Input sinker weight, line length, boat speed, and line type to hit the exact depth zone.

Attractor Map

Know Your Lake's Coverage Before You Launch

Coverage varies by lake during beta. The map tells you when verified attractor data is available, when points are still being reviewed, and when none are available. It does not show unverified locations.

  • Choose a lake and see its current coverage status
  • View only locations that clear SlabHaul's verification gate
  • Use conditions and planning tools even when attractor coverage is unavailable
  • Review beta coverage lake by lake before relying on the map
Coverage status appears here
Verified attractor locations appear only after they pass SlabHaul's review.
Barometric Pressure 30.12 in ↑ Rising
Moon Phase Waxing Gibbous 78%
Wind 8 mph SSW
Bite Rating Excellent
Water Temp 62°F

Weather Intelligence

Weather That Speaks Crappie

Not just a weather app. It's a fishing conditions dashboard. Barometric pressure trends tell you when the bite is on. Moon phase and solunar data help you plan the perfect window. All tuned for crappie behavior.

  • Barometric pressure tracking
  • Moon phase / solunar ratings
  • Wind speed and direction
  • Precipitation forecasts
  • Water temperature trends

Thermocline Predictor

Know Exactly Where They're Holding

Our thermocline prediction model analyzes water temperature stratification to identify the exact depth zone where crappie are most likely concentrated. Stop wasting time fishing the wrong depth.

  • Visual thermocline depth indicator
  • Daily depth predictions based on conditions
  • Historical pattern tracking
  • Pairs with spider rig calculator
Epilimnion · 78°F
Crappie Zone · 12-18 ft
Thermocline · 68°F
Hypolimnion · 52°F
Spider rig setup on a crappie fishing boat at sunrise
Overhead flat-lay of crappie jigs and baits arranged on weathered wood Chartreuse crappie jig product shot

Bait Intelligence

The Right Bait, Right Now

Conditions-based bait recommendations that factor in water clarity, temperature, season, and what's been producing. From jig colors to live bait, we help you tie on the right thing.

  • Color recommendations by water clarity
  • Seasonal bait patterns
  • Jig, live bait, and crankbait library
  • Rigging methods and tips

AI Fishing Assistant

Ask Uncle Slab

Like having a crappie fishing legend in your pocket.

Uncle Slab is your AI fishing buddy, the kind of old-timer who's forgotten more about crappie than most people will ever learn. Ask him about baits, conditions, patterns, and specific lakes.

He's not a corporate chatbot. He talks like a fisherman because he was built by fishermen. No jargon, no fluff, just straight answers from compiled crappie knowledge.

Uncle Slab, friendly old fisherman AI mascot character
Uncle Slab
Your AI Crappie Advisor
Uncle Slab, what's the best bait for stained water in March?
Uncle Slab avatar

In stained water come March, you want something they can see and feel. I'd go with a 1/16 oz chartreuse and orange tube jig. Slow fall under a slip float set about 8-10 feet. The pre-spawn fish are moving up and they're aggressive. If tubes aren't getting it done, switch to a Bobby Garland Baby Shad in monkey milk.

What depth should I fish when the thermocline is at 15 feet?
Uncle Slab avatar

If the thermocline's sitting at 15 feet, your crappie are gonna be right at or just above it. That means the 12 to 15 foot range. Set your spider rig jigs staggered between 11 and 14 feet. The big ones like to suspend just above that break where the oxygen's still good.

Is the bite going to be any good this weekend at Reelfoot?
Uncle Slab avatar

Looking at the forecast, barometer's been steady, wind's supposed to lay down Saturday morning, and we've got a waxing moon. I'd rate it an 8 out of 10. Get out there early, fish the cypress stumps on the south end. They've been stacked up in 6-8 feet.

Daily Briefing

The Morning Crappie Report

Your daily crappie briefing. Read it or listen on the drive to the lake.

Roadmap: a daily crappie briefing with lake conditions, bite forecasts, what is working this week, event news, and seasonal tips.

Prefer to read? The planned report will start with text in the app. Audio is on the roadmap for a later release.

  • Roadmap feature, not part of the current beta
  • Text first, with audio planned later
  • Voice narration is on the roadmap
  • Lake conditions, bite forecasts, tournament news
Uncle Slab avatar
The Morning Crappie Report
Saturday Morning: Kentucky Lake
March 28, 2026 · 17 min
5:42 17:08
Today's Topics
Kentucky Lake conditions & water level update
Pre-spawn bite forecast for the weekend
What baits are producing this week
Crappie Masters tournament recap
Spring staging tips, depth and structure
New Catch Entry
Location Kentucky Lake: Big Sandy
Water Temp 62°F
Weather Partly Cloudy, 58°F, 8 mph SSW
Moon Phase Waxing Gibbous 78%
Barometric 30.12 in ↑ Rising
Time 7:24 AM
6 fields auto-populated from GPS & sensors
Species White Crappie
Size 14.5 in / 1.8 lb
Bait Used Chartreuse tube jig, 1/16 oz
Fisherman holding a beautiful white crappie in golden morning light

Smart Fishing Journal

Your Catches. Your Patterns. Logged in Seconds.

Most fishing logs ask you to type everything. SlabHaul pre-populates what it already knows: GPS location, lake name, weather, barometric pressure, water temp, moon phase, and time. You just fill in the fish.

Over time, your journal builds a personal fishing history that reveals patterns you'd never see otherwise. Which moon phase produces your best days? What bait works best when the barometer is falling? Your data, your edge.

  • Auto-populates location, weather, moon, pressure, temp, time
  • You only add: species, size, bait, and optional photo
  • Pattern analysis reveals your best conditions
  • Log a catch in under 10 seconds on the water

How It Works

From Download to Slabs in Minutes

1

Pick Your Lake

Choose a lake, then check the map's coverage status before you rely on attractor locations.

2

Check Conditions

Real-time weather, barometric trends, water levels, and thermocline predictions all in one dashboard.

3

Plan Your Day

Use the spider rig calculator and available lake information to plan your next move.

Fisherman using the SlabHaul app on his phone while on a crappie fishing boat at dawn

Lakes

Growing Lake Coverage

Lake conditions and map coverage vary by lake during beta. The app labels each map state before it shows a location.

Panoramic view of Kentucky Lake at golden hour

Kentucky Lake

Tennessee / Kentucky

Attractor verification in progress. No unverified locations are shown.

Reelfoot Lake

Tennessee

No verified attractor data is currently shown for this lake.

Coverage changes only after source, location, and verification checks are complete. Do not rely on the map for unverified locations.

Knowledge Base

Built-In Crappie Intelligence

A searchable repository of techniques, seasonal patterns, and bait guides inside the app.

🌡️

Seasonal Patterns

Pre-spawn, spawn, post-spawn, summer, and winter patterns with depth ranges, structure types, and behavior insights.

🎣

Techniques Guide

Spider rigging, vertical jigging, long-lining, shooting docks, and more, with pros, cons, and best conditions for each.

🦈

Bait Library

Jigs, live bait, crankbaits, and soft plastics, complete with rigging methods, color selection, and seasonal usage.

📈

Condition Analysis

How barometric pressure, water clarity, temperature, and current affect crappie behavior and where to find them.

Multi-Platform

Plan Your Trip From Any Screen

Check conditions, scout attractors, and plan your trip from your phone, tablet, or computer before you ever leave the dock.

Pricing

Free During Beta

All beta testers get full access at no cost while we prepare paid launch.

Beta Access

Free during beta. Paid plans are deferred until paid launch.

No credit card required. Paid launch is deferred until after open beta.

FAQ

Frequently Asked Questions

SlabHaul is the only fishing app built 100% for crappie. Every feature, from the attractor map to the thermocline predictor to the spider rig calculator, is designed specifically for how crappie fishermen think and fish. We don't try to be everything for everyone.

SlabHaul displays an attractor location only after its source, lake match, and coordinate confidence clear our verification checks. Coverage varies by lake during beta, and some lakes have no verified attractor data yet.

Lake conditions and map coverage vary by lake during beta. Check the selected lake in the app for its current coverage status. SlabHaul labels maps with no verified attractor data instead of showing unverified locations.

Uncle Slab is our AI fishing assistant. Think of him as the uncle who always knows more about crappie than everybody else at the ramp. Ask him about baits, techniques, conditions, or specific lakes and he'll give you a straight answer. Daily updates and voice narration are roadmap items.

Android open beta is next. iOS is planned for TestFlight after Android is stable. The web app runs at slabhaulapp.com.

The spider rig calculator works offline. Map tiles, current conditions, and other network-backed data may require a connection. Check the app's current state before relying on any information on the water.

Yes. All beta testers get full access at no cost. Paid plans are deferred until paid launch.

Tennessee lake at dawn

Ready to Haul More Slabs?

Join crappie fishermen across the country who are fishing smarter with real-time lake intelligence.

Free during beta. Paid plans are deferred until paid launch.