Largemouth · Smallmouth · Walleye · Pike

Your logbook already knows where the fish are

Log a catch then we fill in the weather, moon phase, and barometric pressure. Bass Thumb reads the pattern back to you as a trip plan for your water — and your spots stay yours.

“I have downloaded other fishing apps, but they burn spots. I like that Bass Thumb does not burn my spots.” — Rob C.

Free to download — and there will always be a free tier.

A man wearing sunglasses and fishing gear holding a large fish on a boat with fishing poles in the background under a blue sky.

AS HEARD ON

Our Difference

Every other fishing app wants your spots. We keep your logbook private.

Social fishing apps put your water on a public map and add pressure to the places you worked to find. Bass Thumb does the opposite — it keeps your data private and turns it into an advantage only you have.

Your spots stay yours

No public map, no feed, no burning the water you found. Your log is visible to exactly one person.

Logging takes seconds

Weather, moon phase, and barometric pressure fill in automatically. You record the fish; we record the conditions.

A plan, not a dashboard

Get a trip plan built from your own logbook and the conditions for when and where you plan to fish.

HOW IT WORKS

Three screens, one habit

Log the fish. Read the pattern. Fish the plan.

Mobile app screen showing a log catch entry for fishing, with a photo of a man holding a fish, date and time of catch, location at West Branch Susquehanna River, fish species as Black Bass, and size measurements options.

Log a catch in three taps

Species, size, lure. Everything about the day fills itself in.

Mobile app screen showing moon phase catch data with a circular chart and a legend, including waxing crescent, new moon, waxing gibbous, last quarter, first quarter, waning gibbous, full moon, waning crescent, and their respective catches.

See the pattern by species

Which pressure, which moon, which lure — filtered to the fish you’re after.

Mobile app screen showing Seasonal Challenges for fishing, with tabs for Winter, Spring, Summer, and Fall. The Summer challenge is closed. The app features a sponsored Black Bass Challenge with various lure icons and fish catch level indicators. Menu options at the bottom include Log book, AI Coach, Map, Analytics, and Challenges.

Keep it competitive

Seasonal challenges and a leaderboard, without giving away a single waypoint.

ANGLER REVIEWS

What anglers actually say

“Loving the app, especially the analytics and the addition of the AI plan your trip. The suggested lures to use are helping me to branch out and not get stuck on the same lures over and over again.” - Daniel C.

“I love how easy it is to log new catches, whether I’m out on the water or back home. And the app automatically fills in all of the weather data so I don’t have to. Having this much data about my catches all in one place is invaluable.” - Owen S.

“I have downloaded other fishing apps like Fishbox, but they burn spots. I like that Bass Thumb does not burn my spots, and the analytics are great to look back and see what has been working.” - Rob C.

THE FOUNDER

Founder of Bass Thumb AI, Sean Riggle shows an 18-inch smallmouth bass he caught using his Bass Thumb AI coach's guidance.

“I grew up catching smallmouth on the rivers of Central Pennsylvania. When I moved to lakes I was lost — so I started building strategy in spreadsheets. Bass Thumb is that spreadsheet, grown up.”

Sean Riggle - founder, Bass Thumb AI

Start logging this weekend

20 catches is enough for the first pattern to show up