The carp companion
Carpanion holds the map, the conditions and the memory of every session in one place — so what you work out on the bank is still there the next time you fish.
Carp Conditions
78/100Good
Confidence: moderate
Potential bite window
18:40 – 21:10
Concept view — a mapped water with private features, conditions and rod positions.
In development for France, England, Wales, Scotland and Northern Ireland.
How it works
Carpanion is built around the way a session actually runs — before the bank, on the bank, and after.
Search across France and the UK, or place your own private water where the map has none. Save it and it's yours to build on.
Mark swims, snags, gravel, silt, access and parking. Write notes that stay attached to the spot instead of a notebook you'll lose.
Log rods and positions, quick events as they happen, catches — and blanks. Recording a blank takes seconds and matters as much as a fish.
Ask what the conditions and your own history suggest. Answers come back with their sources, or with an honest 'I can't verify that'.
What it does
Five parts that only get useful together. Most anglers already keep all of this — in notebooks, camera rolls, weather apps and memory.
Search lakes, gravel pits, reservoirs, rivers and canals across France and the UK. Save the ones you fish and build private knowledge around each of them.
The features that decide where you cast, marked where they actually are. Points, lines and areas — swims, snags, weed, gravel, silt, bars, drop-offs, access, parking, fish sightings.
Weather, pressure and its trend, wind, temperature and rainfall for the water you're actually fishing — plus river levels and flow where an official provider covers it.
Rod positions with real casting distances, quick events as they happen, catches with as much or as little detail as you have time for — and blanks recorded properly.
Your sessions become statistics you can actually read: catch rate per rod-hour, blank rate, what's produced and when — always shown with the sample size behind it.
Carp Conditions
Carpanion scores conditions with deterministic code — the same inputs always give the same score. Every factor that moved the number is listed, with its contribution. Cy can explain the score. Cy cannot invent it.
Carp Conditions
Good
Confidence: moderate
Windows are contiguous stretches of high-scoring hours — not a promise that fish will feed.
The weights behind the score start as hypotheses drawn from angling practice, not proven science. We say so in the product, and we'll validate them against real recorded sessions rather than asserting they work.
Ask Cy
Cy combines trusted carp knowledge, live conditions, the water in front of you, your own map features and everything you've recorded. That combination is the point.
A general chatbot can explain a helicopter rig. Cy can explain a helicopter rig — then tell you the pressure has been falling on your lake since Thursday, and that your last three fish there came off gravel at sixty metres.
Where would you start tonight?
Wind's been SW all afternoon and pressure is falling — the far bank from Swim 4 is worth the walk. You've had four of your last six fish along that gravel bar at 55–65 m, three of them after 19:00.
That's your own record on this water, not a rule about carp. Nine sessions is a small sample.
Sources
Your sessions on this water
9 sessions · 6 fish
Carp feeding and water temperature
Peer-reviewed · Authority 4
It separates what a source says, what your data shows, and what's simply common practice — and says so plainly. On regulations it checks current authoritative sources and shows when they were last checked. If it can't verify something, it tells you to check with the fishery or authority instead of inventing an answer.
“I can't verify that from an authoritative current source. Check the fishery or authority before fishing.”
Why it compounds
A catch diary tells you what happened. Carpanion is built so that what happened becomes something you can ask questions of.
Your fishing intelligence
Patterns across your own waters, conditions and approaches — with the sample size always attached, so you can judge how much to trust them.
Blanks count. A session with no fish still records the hours, the rods, the spots, the bait and the conditions — and knowing what didn't work is half of knowing what does.
Privacy
Carp anglers don't share hard-won spots, and a product that leaks them isn't worth using. Privacy is the default, not a setting you have to find.
Your waters, features, notes, sessions and catches are visible to you alone. There is no public feed in V1 and nothing becomes shared just because you saved it.
Swim locations, rod positions and catch coordinates are never published. Ownership is enforced on the server, not hidden in the interface.
Uploaded photos have their EXIF metadata stripped by default, so a picture of a fish doesn't quietly carry the coordinates of where you caught it.
Deleting your account removes or anonymises your personal records, and the data model is built for export from the start.
Where it works
Regulations, hydrology and data providers differ by jurisdiction, so each is handled separately rather than lumped together. English first, with French selectable from day one.
Hydrology coverage depends on an official provider existing for a given area. Where there isn't one, Carpanion says so rather than showing invented river data.
Membership
One price, no tackle-shop upsells. Prices shown in euros, billed monthly.
The core companion — map, conditions, sessions and Cy.
€4.99/month
For anglers who want to interrogate their own record properly.
€9.99/month
Memberships aren't open yet. These are the planned prices at launch.
Questions
A private carp-fishing tool that combines mapping, weather and river conditions, session and catch recording, and an assistant called Ask Cy. It's for keeping and using what you learn about the waters you fish.
Those are the launch jurisdictions: France, England, Wales, Scotland and Northern Ireland. Each is treated separately because regulations and data providers genuinely differ between them.
Yes. Everything personal — waters, spots, notes, sessions, catches and photos — is private by default, and ownership is enforced on the server. There is no public feed in the first version.
An assistant built specifically for carp fishing. It draws on curated carp knowledge and authoritative sources, live weather and hydrology, the water you're asking about, and your own recorded history — and it cites what it used.
No, and it won't pretend to. Carp Conditions is a transparent score built from weather and hydrology factors you can inspect one by one. Bite windows are stretches where those factors line up well — a starting point for your own judgement, not a prediction.
Yes. English and French are both supported from the first version, and Cy answers in your language. Your language setting is separate from the jurisdiction your waters sit in.
There's no date to announce yet. Carpanion is in active development and we'd rather ship it working than ship it early. Join the list and you'll hear when it opens.
Get started
Carpanion is in build. Add your email and we'll tell you when it opens — nothing else.
The waitlist isn't open yet — this form isn't connected.
The carp companion.