Track Every Spin. Master Every Bobbin.
Real-time WPI and TPI tracking with instant drift visualization. Stop guessing your yarn consistency. Download now and gain precision measurement tools used by professional fiber artists worldwide.
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Promo codes valid for new installations only. Templates remain accessible after claiming. No subscription required for basic tracking features.
Input your gauge measurements and Cooin Strike 2 instantly calculates WPI, TPI, and twist angles using professional fiber mathematics. The system processes wraps-per-inch against your specified gauge distance, multiplies twist counts by sample length ratios, and derives twist angles through geometric formulas used by certified spinners.
Track up to eight bobbins per project with real-time percentage deviation graphs. Every measurement updates your drift timeline, showing exactly when your spinning left tolerance zones. Color-coded data points identify problematic bobbins immediately, while tolerance bands visualize acceptable variance ranges across your entire project timeline.
Switch between target comparison and bobbin-to-bobbin analysis modes. Compare any bobbin against your original specifications or measure consistency between individual bobbins. The flying view mode displays all bobbins simultaneously for instant visual consistency checks across your full project batch.
Cooin Strike 2 emerged from real spinning challenges faced by hand spinners managing large projects. Traditional paper logs and manual calculations create bottlenecks when tracking multiple bobbins. This tool eliminates calculation errors, provides instant visual feedback, and maintains detailed measurement histories across unlimited projects. Professional spinners use it to maintain commercial-grade consistency, while beginners rely on reference charts to learn standard yarn weight specifications.
See calculated WPI, TPI, and twist angles update instantly as you enter measurement values. No waiting, no manual math, no calculator apps needed on the side.
Assign color identifiers to bobbins for quick visual sorting. Tap numbered swatches to jump between bobbin measurement screens without scrolling through lists.
Bobbins exceeding variance thresholds display in-tolerance or out-of-tolerance status immediately. Know which bobbins need re-spinning before you finish the project.
Access standard yarn weight classifications from lace to super bulky. View typical WPI ranges and recommended twist angles for both woollen and worsted spinning methods.
Dedicated measurement entry screen with labeled input fields for wraps, twists, sample lengths, and weights. Formula-based calculation happens automatically behind the interface.
Switch between timeline graphs showing drift progression and flying comparison views displaying all bobbins side-by-side for batch consistency checks.
Android installation · Free download · Instant measurement setup
Download Cooin Strike 2Compatible with Android devices · No subscription fees for core features · Reference charts included