About Case Split

Why we built it

Splitting a case evenly by card count feels fair until someone walks away with all the chase cards. It's a common source of friction in local playgroups, LGS breaks, and online splits. The classic spreadsheet approach works, but every group ends up rebuilding the same math from scratch — assigning rarities, summing weights, dividing the case cost, and hoping nobody typed a formula wrong.

Case Split takes that math off your plate. You set the case cost, list the cards, tag each one by rarity, and assign it to a participant. The app calculates each person's share live — weighted by rarity, adjusted for any fixed per-card costs, and updated the moment anyone edits anything.

Who it's for

• Playgroups splitting a booster box or case of Magic, Pokémon, Yu-Gi-Oh!, One Piece, Lorcana, or any other TCG.
• Local game stores organizing member case breaks.
• Online communities running group buys where trust and transparent math matter.
• Any two people who want to open a product together without arguing later.

How rarity weights work

Every rarity in a case is assigned a numeric weight. A Secret Rare might be weight 1.7, a common might be 0.5, and cards nobody wants can be weight 0. Each participant's total weight is the sum of the weights of the cards they claim. Their share of the case cost is their total weight divided by the sum of all assigned weights. You control the weights per case, so a Pokémon Alt Art can be valued differently than a Magic Mythic.

You can also add a fixed per-card cost for anything with a well-known secondary-market price (a chase card everyone agrees is worth $X). The fixed amount is deducted from the case cost first, then the remainder is split by weights.

What it costs

Case Split is free to use. It's supported by display ads on public pages and by affiliate links to TCGplayer. You never pay to create, share, or open a case.