Version 2.1 adds Batch Board, a production planning tool for repeatable thrown sets. It calculates wet dimensions, clay reserve, shelf footprint, tolerance bands, rough capacity, readiness score, and copyable batch notes. This release also adds a bundled Studio Reference Pack with ten offline sheets for shrinkage workflow, test bars, batch planning, capacity math, cones, glaze specific gravity, clay weights, firing schedules, inch fractions, and studio checklists.

Kilnshrink 2.0 — a pro studio upgrade for potters, still 100% offline. • Cone Reference: the full Orton cone chart (022–14) at two heating rates, plus a "what cone did I reach?" peak-temperature lookup. • Glaze Recipes: build percentage recipes and batch-scale them to any gram target. • Specific Gravity tool: measure SG from a sample and get the exact water to add. • Firing Schedules: build ramp / hold / cool programs with total time, peak temp, and peak cone. • Clay Weight Guide: the starting ball-of-clay weight for six thrown forms by size. • Temperature and weight converters woven throughout. No account, no network — everything stays on your device.

Throwing Chart: turn your selected clay into a printable, shareable shrinkage reference card — common finished sizes beside the wet size to throw, with proper inch fractions, plus clay name, cone, and shrinkage %. Toggle finished->wet or wet->fired and export a crisp image to Photos, AirPrint, or Messages. Plus clearer error messages in Calculate and Volume.

What's New in Kilnshrink 1.1 Volume Calculator (new tab) Find out if your mug will hold 12 fl oz — before it goes in the kiln. Enter the inner diameter and height of your piece, pick your clay, and Kilnshrink tells you the fired capacity in fluid ounces and millilitres. Three vessel shapes: cylinder (mugs, vases), bowl (frustum), and rounded bowl (teabowl). Works from wet or already-fired dimensions. A benchmark band shows how your piece compares to espresso, small mug, standard (12 oz), large (16 oz), and tall mug (20 oz). Test Bar (new tab) Stop guessing your clay's shrinkage from a data sheet. Fire a 100 mm wet bar at your usual cone, measure the result, and enter both numbers. Kilnshrink computes your actual total shrinkage from the SHAB test-bar method. Optional two-stage mode separates drying and firing shrinkage. A family-range band shows where your result falls among raku, earthenware, stoneware, paper clay, and porcelain. Save the measured result straight to your clay library as a custom entry. Fixes and polish The onboarding walkthrough now mentions the Volume and Test Bar tools. Version display fixed to always read 1.1 (3).