Frequently asked questions

What is KeeperSync?

A keeper-cost tracker for fantasy football leagues that carry players over between seasons. It figures out what each kept player should cost you in the next draft, keeps that history straight across years, and handles the messy real-world stuff — owners leaving mid-season, players who weren't kept the way your platform's draft log assumed, leagues that don't all use the same keeper rule.

How does the keeper cost math work?

You pick a rule when you create your league:

• Round decay (most common) — a keeper costs one round earlier each year you keep them, until the cost would exceed Round 1, at which point they're no longer keeper-eligible.
• Round decay by 2 — same idea, decays twice as fast.
• Flat, no decay — a keeper always costs the round they were last drafted at, every year.
• Flat fixed round — every keeper on your roster costs the same set round (e.g. always Round 5), regardless of where they were originally drafted.

You also set a max-keepers-per-team limit and a max-consecutive-keeper-years cap. The app applies whichever rule you picked consistently across every team and every season.

What platforms can I import from?

• Sleeper — full auto-import. Give it your current league ID and it walks the whole season chain automatically, detects who's actually been kept (not just who was drafted this year), and handles leagues that draft-slot their keepers at the decayed cost round instead of leaving them off the board.
• ESPN — same idea, for public leagues. ESPN keeps one league ID for its whole lifetime, so there's no chain-walking needed — it just reads the league's own season history directly.
• Anything else — Yahoo, CBS, Fantrax, a private league on any platform, or just a plain list you typed up yourself — paste in Team, Player, Round, Year rows and it feeds the exact same system the API imports use.

Do you support Yahoo directly, like Sleeper and ESPN?

Not yet — Yahoo's API requires a registered developer app and a full OAuth login flow, not a simple no-auth lookup like Sleeper and ESPN. That's in progress. Until it's live, the paste-in import covers Yahoo leagues just fine — copy your draft results in, and it works exactly the same as any other import.

An owner left my league and someone else took over their spot. What now?

Use Replace an owner. Pick who's leaving, pick who's taking over, and individually check off which of the departing owner's active keepers (if any) carry over to the new owner. Anything left unchecked stays attached to the old franchise as a permanent historical record — nothing gets deleted, so your league's full history stays intact even as ownership changes hands over the years.

What about trades and side bets between owners?

The Notes section on your league page is a free-text log for exactly that — a pick traded between two teams, a side bet on the season, or anything else worth keeping on record that isn't part of the keeper-cost math itself.

Can I print my league's keeper info for draft day?

Yes — every league page has a 🖨️ Print league button. It opens a clean, ink-friendly draft sheet (no buttons or nav clutter) listing every team's active keepers with their costs, former owners' history, and any notes you've logged. Print it or save it as a PDF straight from your browser's print dialog to bring to the actual draft.

How much does it cost?

$4.99, one time, per league, per season. Not a subscription — you pay once to unlock a season's keeper decisions, and that's it until next year. Payment is handled entirely by Stripe; KeeperSync never sees or stores your card details.

What does KeeperSync not do?

• It doesn't replace your league host. You still draft, score, and run your actual season on Sleeper, ESPN, Yahoo, or wherever your league already lives — KeeperSync only tracks keeper costs and history alongside it.
• No live scoring, standings, or in-season roster management.
• No auction or salary-cap keeper leagues yet — only the round-based rules above. That's a genuinely different data model (dollar values instead of draft rounds) and is on the roadmap, not built yet.
• Trades and side bets are logged manually via Notes — nothing is auto-detected from your platform's transaction log.
• No mobile app — it's a responsive web page, works fine on a phone browser, but there's nothing to install.