PatternPlot vs patanQ

PatternPlot turns a paper sewing pattern into an editable, true-scale vector on your iPad — then grades it into a full size run you define, deterministically. Tracing a pattern got easy years ago. Grading — turning one size into a trustworthy run of sizes — is still the hard, trust-sensitive job. PatternPlot is built around that job, on device, with geometry you can audit. FREE — real work, no subscription • Photograph or import a paper pattern and trace it with Apple Pencil (or finger + numeric entry). • Import your own vector artwork (SVG) at true scale — free, because it is how you get your work in. • Edit true-scale vector pieces: add seam allowance per edge, notches, and grainlines. • Export true-scale tiled PDFs and A0 — with a 50 mm calibration square and registration marks so your print is exactly to scale. • Grade YOUR piece: mark a reference point and an axis, type how much each size grows, and see the whole run nested on screen. • A quality report on every graded size: drift beyond the safe grade range, collapsed edges, and self-intersections. • Export the base size — the size you drafted — at any time. No purchase is required to do any of this. Basic export is never locked behind a paywall. PRO GRADING — the paid tier • A tiled PDF for every size in your run. • A vector outline of every piece at every size. • A nest of the whole run on one sheet. • Every piece of the garment in each file, not just one. • A spreadsheet of what every declared seam measured, size by size. • Your grade corrections saved to a file, so another garment can use them. The vector files carry the stitching outline only — no seam allowance, notches or grainline. Reading a saved corrections file back into a pattern is free; only writing one is Pro. HONEST BY DESIGN The grade is deterministic geometry computed on your device. AI never touches your measurements: no coordinate, seam allowance, notch position, or graded measurement is ever produced by a model. PatternPlot also tells you when a size drifts beyond a safe grade range, so you can re-check proportions before cutting fabric. We describe this as garment-aware grading — not a fit guarantee. REQUIRES: iPad on iPadOS 17 or later. Apple Pencil recommended but not required. — Pro Grading subscription: $79.99/year after a 7-day free trial. Payment is charged to your Apple ID at confirmation of purchase. It renews automatically unless turned off at least 24 hours before the end of the period; manage or cancel anytime in your Apple ID Account Settings. Trace, vector edit, seam allowance, notches, grainline, and tiled/A0 PDF export are free and do not require a subscription. Privacy Policy: https://amtyurin.github.io/patternplot/privacy-policy.html Terms of Use: https://amtyurin.github.io/patternplot/terms-of-use.html

Make sewing patterns, add seam allowance automatically, and print at true size — all on your iPhone or iPad. Start from a template such as a tote bag or skirt, enter your measurements, and draft to the millimeter. Print at exact size with AirPrint or export a true-size PDF. No more spreading out big sheets of paper and measuring by hand — just combine shapes on screen. Perfect for dressmaking, bags and pouches, home décor, leather craft and other DIY projects. --- **Start from a Template** 7 ready-made templates: tote bag, drawstring bag, pocket, A-line skirt, cushion cover, placemat and round coaster. Pick one, adjust the size, and your pattern is done. **Automatic Seam Allowance** Treats the shape's outline as the cutting line and draws a dash-dot stitching line inside it at the width you choose (mm). Works with closed shapes such as rectangles, circles and polygons, and is included when you print or export to PDF. **8 Drawing Tools** Draw anything from simple pieces to complex parts. - Rectangle and triangle - Circle and ellipse: adjust width and height independently - Polygon: regular polygons from 3 to 36 sides - Line and curve (Bezier): smooth curves, exactly how you want them - Text: label pieces with names or cutting counts like "×2" **Edit Freely** - Drag to move, pull the handles to resize - Turn on "Keep proportions" to resize without distorting the shape - Set the angle (0–360°), line color and line style - Undo and redo your edits - Pinch with two fingers to zoom, drag with two fingers to move around - Duplicate, flip horizontally or vertically — symmetrical pieces made easy **Dimension Lines** Shows the length of every edge (in mm) right on the canvas, so you can check your measurements as you draft and avoid sizing mistakes. **Print at True Size & Export PDF** 10 paper sizes — A1–A5 and B1–B5 (JIS) — in portrait or landscape. Export any pattern as a true-size PDF. - AirPrint: print wirelessly to your printer at home - Share PDF: send it via AirDrop, email, cloud storage and more **Save Multiple Patterns** Save as many patterns as you like, and rename or delete them easily. Reopen an unfinished pattern anytime and pick up right where you left off. --- **Great for** - Making sewing patterns on your phone - Drafting bags and pouches in your own custom size - Preparing patterns with seam allowance without drawing it by hand - Printing true-size templates for leather craft, quilting and DIY - Making cushion covers, placemats and other home sewing projects Serious pattern drafting, made simple. Bring it into your everyday handmade projects.