KnitAndCalc vs Purl.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KnitAndCalc
Manage your yarn stash, organize knitting projects, and save patterns. Features smart calculators for yarn needs and stitch distribution, plus a digital ruler. Supports multiple languages and units.
- Yarn stash management
- Project organization
- Pattern saving and categorization
- Yarn and stitch calculators
- Digital ruler
- Data backup and import
- Multilingual support
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KnitAndCalc is the ultimate app for everyone who loves to knit! Design your own patterns and colorwork charts, keep track of your yarn stash, organize projects, save patterns, and use smart calculators that make knitting easier. PATTERN DESIGNER • Design your own sweater, scarf or socks • Choose neckline, sleeves, fit and edges, and see the garment on the figure • Get a schematic with finished measurements and a pattern written for your size and gauge • See how much yarn you need, and add the design as a project CHART DESIGNER • Draw colorwork charts in a stitch grid • Place the chart as a border on the yoke, body or sleeve in the pattern designer • Knit straight from the chart, or share it as a PDF or image YARN ALTERNATIVES • Find a substitute among almost 1,500 yarns • Advanced search by gauge, fiber, needle size, yardage, weight and superwash KNITTING MODE • A row ruler that follows you row by row in your pattern • Choose start row and counting direction • The screen stays on while you knit SEND PATTERNS • Send this page, selected pages (for example "2–5, 8") or the whole pattern • As a PDF or images, with or without your own markings YARN STASH • Register all your yarn with brand, type, color and color number • Keep track of weight, length and number of skeins • See how much yarn is reserved for projects • Grouping by brand and type for easy overview • Tracking history for used yarn PROJECTS • Organize your knitting projects • Link yarn from stash to projects • See overview of reserved yarn with % of stash • Connect patterns to projects • Add row counters for easy progress tracking • Register needle size, gauge and size • Keep track of start date and finish date PATTERNS • Save patterns as PDF, images or website links • Organize in categories (sweaters, pants, hats, socks, mittens, or custom) • Search and filter among your patterns • Connect patterns directly to projects YARN CALCULATOR • Calculate how much yarn you need when switching to another yarn with different yardage • Enter pattern yarn and the yarn you want to use • Get immediate calculation of number of skeins you need STITCH CALCULATOR • Generate instructions for even distribution of increases or decreases • Calculate how to distribute stitch changes across a needle • Perfect for when the pattern says "increase/decrease evenly distributed" • Shows step-by-step instructions with checkboxes RULER • Built-in digital ruler • Support for both centimeters and inches • Correct scale on newer iPhone and iPad, with an adjustment for phone cases • Perfect for measuring gauge and projects BACKUP & IMPORT • Export all data as JSON backup • Optionally include images and PDF files (Base64) • Import backup to restore data • Share backup between devices MULTILINGUAL • Norwegian, English, Swedish, Danish, Finnish, German and French • Easy to switch language in settings METRIC & IMPERIAL • Support for both metric (m/g) and imperial (yd/oz) units • Easy to switch in settings PRIVACY • Your yarn, projects and patterns are stored on your device • You choose what is shared, and you can delete your data in Settings KnitAndCalc is made by knitters for knitters, with focus on simplicity and functionality. Perfect for both beginners and experienced knitters who want better control over yarn stash, projects and tools. Download today and get full control of your knitting hobby!
Purl.
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Purl keeps your patterns, your projects and your yarn in one place. It works the same for knitting and crochet. There is no account to make, and your data stays on your device unless you choose to export it. FOLLOW YOUR PATTERN • Open your PDF patterns, draw on them, highlight and add notes. • Lay a colored band across your row and move it up as you go. It counts the rows for you. • Line up a printed chart, and Purl lights the stitch you are on. • Photograph a paper pattern, and Purl turns the pages into one PDF. • Share PDFs to Purl from Files, Mail, Books or Safari, several at once. • Learning from a video? Watch it from YouTube inside your project, with your counters beside it. DRAW YOUR OWN CHARTS • Color charts: fill in square by square, or start from a photo. • Crochet charts (Beta): draw a line with a finger or an Apple Pencil, and Purl fills it with evenly spaced stitches. Write a round the way a pattern reads, such as "[3 dc, ch 2] 3 times", and Purl draws it. • Knit charts (Beta): knit, purl, decreases and cables on a grid, followed row by row. • Send a chart as a Purl file, and another Purl user can open and edit it. PROJECTS AND STASH • Follow each project from plan to finished, with photos, the yarn and the gauge you actually got. • Note each yarn's color, dye lot and weight, and see how many meters and grams you have. Purl knows about 20 Nordic yarn brands. • Scan a ball band to find a yarn you already have. Purl also spots a new color of a yarn you own. • Find a pattern for a yarn you own, or yarn for a pattern. HANDY TOOLS • A calculator that works out your gauge, spreads increases and decreases evenly, and says how many skeins to buy. • Counters, and knitting and crochet terms in English and Norwegian. • Anything you delete waits 30 days in Recently deleted. • Light and dark mode. On an iPad, your list sits beside what you have open. HOW PURL BEGAN Some girls want flowers. Mine is allergic, so I had to get creative. What she really wanted was a knitting app with all the tools her old app kept behind a paywall. So I built one, with every tool she needed. This is Purl, my digital love letter. Thank you for giving it a try.
Screenshots
Verdict
The clearest difference is in-app purchases: KnitAndCalc at none against Purl.'s 4. KnitAndCalc also leads on update cadence (every 4 days vs every 10 days). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Purl. sells 4 one-off in-app purchases. KnitAndCalc asks for nothing beyond the download.
KnitAndCalc ships an update every 4 days, Purl. every 10 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.
| Parameter | KnitAndCalc | Purl. |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 4 days — better | Every 10 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 19 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Morten Punnerud | Pierre Boniface |
In-app purchases
KnitAndCalc
No in-app purchases
Purl.
- Buy me a coffee$1.99
- Buy me a skein$3.99
- Big thank-you$7.99
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- Purl in your favourite colour$11.99









