For makers of quiet, slow things

A companion for every stitch you make.

Count your rows, follow any pattern line by line, and track your time — for patterns you bring from anywhere. Plus a yarn stash and six creative tools.

Text, image & PDF patterns · Works offline · 10 languages

Today · 47 min

cromu crochet and knitting app home screen showing project list with counters and progress tracking

Bear 72%

Row by row

Bring any pattern. Follow it stitch by stitch.

cromu is not only a chart maker. Paste in a text pattern, photograph a printed one, or open a PDF — cromu holds your place in it, row by row, and opens right where you stopped.

Text patterns: Tap a row to mark it done. The row you are on keeps a terracotta marker, so you never lose your place mid-repeat.
Image patterns: Draw straight over a photographed or scanned chart with a highlighter. Pinch to zoom, undo, redo.
PDF patterns: Annotate page by page. Your marks and the page you were on are saved per pattern.

Progress is saved for each pattern and stays on your device.

cromu pattern viewer with a crochet chart marked up row by row using the drawing overlay

Why cromu?

Handmade things deserve handmade tools.

Every stitch is a small act of patience. cromu was built to sit quietly beside that patience — to hold your counts, your photos, your hours — without ever asking for your attention back.

— the cub labs

All-in-One

Counters, timer, patterns, yarn stash, and creative tools — everything in one place.

Instant Start

No setup needed. Open and start crafting right away.

Free at the Core

Counters, timer, patterns, stash, and all 6 creative tools are free. Premium is optional.

10 Languages

English, Korean, Japanese, Chinese, Spanish, Portuguese, German, French, Turkish, Russian.

The Toolkit

Everything You Need

Powerful stitch counter, pattern viewer, and project tools for crochet and knitting

Stitch & Row Counter

Multiple counters per project with targets and progress bars. Quick counter accessible anytime.

Unlimited counters per project
Goal setting & progress bar
Quick counter (bottom sheet)

Amigurumi Bear

Body Panel

Repeat every 24 rows

−

Arm (Left)

Row 7 of 30

−

so close!

Pattern Viewer

Text patterns with line tracking, image patterns with drawing overlay, PDF support with page-by-page annotation.

Text pattern line tracking
Image drawing overlay
PDF page-by-page annotations

Pattern · Row 8

8 / 24

Row 6: sc in each st around (24)

Row 7: *sc 5, dec* rep around (20)

Row 8: sc in each st around (20)

Row 9: *sc 3, dec* rep around (16)

Row 10: sc in each st around (16)

Tap any row to mark complete

Crafting Timer

Built-in timer tracks your sessions automatically. Per-counter timers for detailed tracking.

Project & counter-level timer
Background timer support
Yarn & needle stash → project linking

Current session

02:14 :38

47h

Total

Sessions

3h 58

Longest

Yarn & Needle Stash

Build your yarn and needle inventory. Import directly into projects from your stash.

Achievements

55 badges across 5 categories. Track milestones, time goals, streaks, and tool usage.

Crafting Insights

Activity heatmap, weekly/monthly/yearly stats, daily averages, streaks, and Year in Review.

My Gallery

Browse all your project photos in one beautiful collection.

See It in Action

Explore cromu's features through screenshots

home.

Project Home

Manage all your projects in one place. Filter by upcoming, in progress, or completed.

Project Info

Dates, yarns, needles, and notes stay folded away while you work. Open them when you need them.

cromu app gallery screen showing finished crochet and knitting projects in a photo mosaic

My Gallery

Every finished piece in one place. A year of crochet and knitting, stacked up.

Creative Tools

Pixel art generator, pattern designer, stitch chart, color replacer, and calculators.

Project Detail

cromu app yarn and needle stash inventory management screen

Yarn & Needle Stash

Profile & Insights

Creative Tools

6 built-in tools to boost your creativity

Pixel Art Generator

Convert any photo into a pixel art pattern.

Pattern Designer

Design patterns on a customizable grid.

Stitch Chart Designer

Create pattern charts with crochet symbols.

Color Replacer

Preview projects with different yarn colors.

Stitch Calculator

Calculate required stitches from your gauge.

Yarn Calculator

Estimate yarn weight needed for your project.

Frequently Asked Questions

What kind of crafting app is cromu?

cromu is a free app for crochet and knitting that keeps count and keeps your place. It has stitch & row counters, a crafting timer, and a pattern viewer that tracks text, image, and PDF patterns row by row — including patterns you bring from somewhere else. It also has a yarn & needle stash and 6 creative tools, among them a pixel art generator and a stitch chart designer. No account needed, and project data is stored offline on your device.

Is cromu free?

cromu is free to download, and the core is free to use: projects, counters, timer, pattern viewer, yarn & needle stash, creative tools, achievements, and insights. There is one optional subscription, Cromu Premium — see below.

What does Cromu Premium include?

Cromu Premium is optional. It removes ads and unlocks 6 color themes, the home screen widget, up to 3 quick counters, and the pattern timer. Everything else stays free. It is an auto-renewing monthly or annual subscription; the price is shown before purchase, and you can cancel anytime in your Google Play or App Store account settings.

Do I need to create an account?

No account needed. Just download and start crafting right away. All your data is stored locally on your device, so there's no sign-up process.

Does cromu work offline?

Yes, cromu works entirely offline. All your projects, counters, patterns, and stash data are stored locally on your device. No internet connection required.

What languages does cromu support?

cromu is available in 10 languages: English, Korean, Japanese, Chinese, Spanish, Portuguese, German, French, Turkish, and Russian.

What devices can I use cromu on?

cromu is available on Android and iOS. Download it from Google Play or the App Store.

How does cromu handle my data?

Project content is stored locally on your device. cromu also uses advertising, analytics, and crash-reporting services that may process device or usage information as described in the privacy policy.

cromu guides

Practical guides for your next project

Best Crochet Counter App for Stitches and Rows How to Count Crochet Rows Without Losing Your Place How to Manage Crochet Patterns on Your Phone How to Organize Crochet Projects, Yarn, and Needles What to Look for in an Offline Crochet App cromu App Guide: Crochet and Knitting Projects in One Place

Your next stitch is waiting.

Free to download, works offline, no account. Just you, your yarn, and a quiet place to keep count.

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