§ A About Cordova, TN · 2026

Dial In Your Pattern

Bassai is an iOS app that records the conditions behind every catch — automatically. You log the catch; the pressure trend, water clarity, tide phase, solunar window, and 40+ other variables attach themselves. Over time, your trips, catches, and conditions become a pattern you can read.

47+ data points per trip
3 gov data sources
0 fields entered manually
iOS platform
Quick reference
What it is
iOS fishing log app. Records catch data and automatically enriches every trip with environmental conditions from government data sources and astronomical calculations.
Who it's for
Serious freshwater bass anglers — and any angler who wants to understand the conditions behind their catches, not just count them. Primary species: largemouth bass, smallmouth bass, spotted bass.
Platform
iOS (iPhone). Coming to the Apple App Store.
Made in
Cordova, Tennessee, USA.
Data sources
USGS National Water Information System — water temperature, level, flow (CFS), turbidity (FNU).
NOAA CO-OPS — tide predictions for coastal and tidal-river trips.
Open-Meteo (weather data, CC BY 4.0) — hourly air temperature, pressure, wind, cloud cover at catch coordinates.
© OpenStreetMap contributors — water-body names and lake polygons via Overpass.
Astronomical calculation — solunar windows, moon phase, sunrise/sunset computed per GPS coordinate.
Privacy
Coordinates are scoped to weather / water-gauge / geocoder lookups. No free-text notes or photo filenames are sent, and catch photos stay on your device. Full privacy policy →

Why Bassai exists

Every serious angler has experienced the same thing: a morning that produced 12 fish, followed the next week by the same lake, the same spots, the same lures — and nothing. Weather changed. Water changed. Something changed. But without a record of what the conditions were on the good day, it's impossible to reconstruct the pattern.

Existing fishing logs record what you caught. Bassai records why you caught it — or at least, the environmental half of that answer. Species and weight take seconds to confirm. The conditions that made the fish catchable that morning — the pressure trend that had been falling for 18 hours, the water temperature sitting at exactly 68°F after a week of warming, the solunar major window that lined up with first light — those are invisible without instrumentation.

The idea is simple: log enough trips in enough conditions, and a pattern emerges from your own data that no single trip could show you. Bassai is the instrument that makes that log possible without adding friction to the act of fishing.

What makes it different

Most fishing apps are leaderboards — weight, length, photo, share. Bassai is a logbook. The distinction matters because a leaderboard optimizes for the best single catch; a logbook optimizes for understanding across hundreds of catches over years. The former produces a social feed. The latter produces a personal intelligence system for your home water.

The environmental data Bassai records is drawn from federal monitoring networks — the same USGS gauges and NOAA stations used by fisheries biologists and hydrologists. When Bassai records a water turbidity of 8.4 FNU, that's the same calibrated measurement used in scientific literature. This matters for the log: numbers that mean the same thing every time they're recorded are the foundation of pattern recognition across seasons.

The name

In Okinawan karate, Bassai (抜塞) is one of the oldest and most revered kata. The characters mean to storm the fortress — 抜 (to pull out, to break through) and 塞 (fortress, obstacle, blocked passage). The kata is not about brute force; it is about reading the walls, finding the exact moment conditions align, and committing completely. Patient observation, then decisive action.

A lake fishes like a fortress. It doesn't give up its fish on demand. Pressure has to be right. Water has to be moving the right direction. Light has to be low enough. The window is narrow and it closes fast. The anglers who find it consistently aren't luckier — they've learned to read the walls. Bassai is the instrument for that reading.

The name carries a second layer — Bass + AI — that describes the practical tool honestly. No suffix, no tagline folded into the name. It's a proper noun that belongs to the product entirely. The internal AI assistant is named Hank — a fishing guide character who lives inside the app, not a product name. When you ask Hank why the fish were biting Tuesday and not Thursday, he's drawing on your log.