Knitting · crochet · scrapbook
The lab for your creations
A row counter built for busy hands, patterns that never lose your place and motifs you won't find anywhere else. Knitting and crochet, in English and French.
Magazine, hockey, Christmas and arrow sash
- The magazine of your creations: your finished project becomes a cover to save to your Photos, share or print
- Hockey jersey from S to 2XL and matching socks, with no logo and 32 colour combinations
- Christmas collection: 4 stockings to knit or crochet (classic, candy cane, embroidered snowflakes, crochet)
- Easy knitted Québec arrow sash (ceinture fléchée), in 3 lengths
Version 1.2 available on the App Store since October 15, 2026.
What Tricolab does
Hands-free counter
One very big + button, a screen that stays on, and your voice: say "next" or "back" without putting your needles down.
A pattern that keeps your place
Import a PDF, photograph a paper pattern or paste its text. Your current line is highlighted and abbreviations are explained in plain words.
43 original patterns
Seven styles: Classic, Modern, Rustic, Emoticon, Crop circle, Clothing and Christmas. A drawing of the finished item, a measured schematic and sizes that recalculate the instructions.
Motif generator
30 chart motifs — crop circles, fishing, construction, leaves, racing, knight — in your size and colours, with the rows written out automatically.
The Lab
Step-by-step techniques, materials, chart examples, an abbreviation dictionary and calculators for gauge, sizing and yarn.
Share and stay motivated
A finished-project card to share, a monthly challenge, badges and your year in review.
Clothing, from S to 2XL
Sweater, hooded cardigan, jacket, sleeveless vest, skirt, arrow sash, headrest cover and car seat pad, with optional body fit.
Hockey: jersey and socks
A hockey jersey from S to 2XL, with no logo, and matching socks, with 32 colour combinations.
Christmas stockings
Four Christmas stockings to knit or crochet: classic, candy cane, embroidered snowflakes and crochet.
Your piece in 3D and augmented reality
See it at real size on your table or wall. While you knit, finished rows show in colour and the rest faded.
Magazine-style export
Turn a finished project into a magazine cover: big headline, pattern, yarn, time, rows and a QR code, ready to share.
Preview










Free, with one optional purchase
The hands-free counter, the pattern reader, 5 launch patterns, 3 crop circle motifs, the 3D and augmented-reality preview, the Lab, challenges and shareable cards are included. The one-time "Tricolab Complete" purchase (CA$4.99) unlocks the 38 other patterns and the 27 other motifs. No subscription.
Your data stays with you
No account, no ads, no trackers. Your projects, photos and patterns stay on your device. Read the privacy policy.
Ready to knit, crochet, create?
Tricolab is available on the App Store, for iPhone and iPad. Free, with one optional purchase.
Download on the App Store