Coopos

Coopos is the firing logbook every studio potter needs. Record each glaze test tile by exact shelf position, then let Coopos reveal whether a defect follows the recipe or the spot in your kiln — so you stop guessing and start knowing. Log every firing with kiln profile, target cone, atmosphere, and a full schedule of ramps, holds, and temperatures. During loading, place tile tokens on a top-down shelf map. After firing, record witness cone bend angles per shelf and attach photos of each tile. Tag results using a built-in defect taxonomy covering crawling, pinholing, blistering, crazing, shivering, running, and more, then mark each tile Keep, Adjust, or Discard. The Kiln Insights heat map overlays defect rate and cone offset across every shelf level and zone, surfacing hot and cold spots at a glance. Trend charts track cone offset over time per level. The Tiles tab goes further: when two thirds of a glaze's defects cluster at one shelf position across multiple firings, Coopos flags it as position-dependent — pointing you at the kiln, not the recipe. Everything stays on your device. No account, no cloud sync, and no network connection required. Your firings, tile photos, and test records are stored locally and encrypted, so your glaze research stays private.