Cast On Studio keeps every knitting and crochet project in one place — no spreadsheets, no scattered notes. Build a step-by-step stepper for each pattern with named steps, instructions, stitch counts, repeat sub-counters, and color stitch markers, plus a project-wide row counter so you never lose your place. Your WIP gallery holds a photo of each project alongside its yarn, needle or hook, and gauge note. Track your yarn stash by brand, weight, yardage, and quantity, and keep a needle and hook inventory so you stop buying duplicates. A gauge-swatch sizing calculator turns your swatch gauge into the stitches to cast on and rows to work. Everything is stored on your device — no account, no cloud, fully offline. Download free and track up to 2 projects. Cast On Pro is an auto-renewing subscription — Monthly $2.99 or Yearly $19.99 — that unlocks unlimited projects, the gauge-swatch sizing calculator, and stash photos. It renews automatically until canceled. Cast On Studio offers an auto-renewing subscription: $2.99/month or $19.99/year. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless canceled at least 24 hours before the end of the current period; manage or cancel anytime in your App Store settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://dtsfinest.github.io/appforge-pages/cast-on-studio/support.html