Comparison

NumColor AI vs Wooly Stack

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

NumColor AI

This app offers a relaxing pixel art coloring experience by number. Users can choose from a variety of images, tap to fill in numbered cells with corresponding colors, and create satisfying pixel art masterpieces. It's designed for stress relief and creative expression, suitable for all skill levels.

Highlights
  • Intuitive tap-to-color gameplay
  • Regularly updated free coloring pages
  • Relaxing, no-timer anti-stress experience
  • Zoom and swipe for detailed coloring
  • Save and share finished artwork
  • Diverse categories of images
Features
Read full description

Unwind with NumColor - Color by Number - a relaxing coloring game where pixel art comes to life one tap at a time. Choose a picture, follow the numbers, and watch a beautiful image appear. It is calming, satisfying, and perfect for quick breaks or deep focus sessions. Whether you call it color by number, paint by numbers, or pixel art coloring, NumColor makes it simple and soothing for everyone. Why you will love it - Tap to color - intuitive sandbox coloring with clear numbered cells - Fresh content - free coloring pages and new pixel pictures added regularly - Relaxing coloring game - gentle pace, no timers, pure anti stress vibes - All levels welcome - easy starters to detailed pixel art for pros - Zoom and swipe - comfortable controls for tiny details - Save and share - show off your finished art and satisfying time-lapses How it works 1) Pick a picture you like. 2) Match the number with its color. 3) Tap to color cells and fill the canvas. 4) Complete your pixel art coloring masterpiece and share it with friends. What you can color - Cute animals, Nature scenes, Food, Mandalas, Patterns, Characters, and more - Seasonal packs and special collections to match your mood - Daily drops so your queue is never empty NumColor is designed to help you slow down, breathe, and create. If you enjoy relaxing coloring games, paint by numbers, or simply want a calm hobby on your phone, this app is for you. Download now, open a free coloring page, and let every tap melt away stress. Subscription management - You can learn how to manage your subscription here: https://support.google.com/googleplay/topic/1689236?hl=en&ref_topic=3364264 Privacy Policy: https://www.playcus.com/privacy-policy Terms of Service: https://www.playcus.com/terms-of-service

About

Wooly Stack

Features
Read full description

Relax your mind and enjoy the soothing motion of colorful threads in Wooly Stack — a calming puzzle game that helps you unwind, focus, and create something beautiful. Pick up vibrant yarn spools, stack them on pegs, and weave stunning scarves with seamless precision. Watch each thread flow smoothly along the conveyor as your design comes to life in soft, mesmerizing motion. How to play: Pick and place yarn spools to match each pattern Time your moves for picture-perfect designs Feel the satisfying rhythm of each movement Why you’ll love Wooly Stack: Relaxing, easy-to-learn gameplay Beautiful soft-color visuals and cozy atmosphere Smooth, satisfying thread animations Hundreds of handcrafted patterns to complete Play offline — enjoy anytime, anywhere Whether you’re taking a quick break or winding down after a long day, Wooly Stack offers a peaceful, creative space just for you. Unwind, relax, and weave your own little piece of magic.

Screenshots

NumColor AI4 screens
Wooly Stack4 screens

Verdict

The call

The clearest difference is in-app purchases: Wooly Stack at none against NumColor AI's 10. Wooly Stack also leads on iOS requirement (13.0 vs 16.0). On price, update cadence, ads and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. NumColor AI sells 10 in-app purchases, starting at $7.99 per 7 days. Wooly Stack asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 8 level
NumColor AI versus Wooly Stack: the parameters behind the verdict, then further details
ParameterNumColor AIWooly Stack
PriceFreeFree
Rating4.9 (75 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings75 — better—
Update frequencyEvery 2 daysEvery 2 days
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.013.0 — better
Further details — not scored
Size134 MB112 MB
Age rating12+12+
DeveloperPLAYCUS LIMITEDNgoc Thien Tran

In-app purchases

10 purchases

NumColor AI

Subscriptions4
  • NumColor Premium3 Days trial$7.997 Days
  • Premium Subscription3 Days trial$9.997 Days
  • NumColor Premium$39.991 Year
Show 1 more
  • NumColor Premium$49.991 Year
One-time6
  • 1 Gem$0.99
  • 110 Coins$1.99
  • 10 Gems$4.99
Show 3 more
  • 30 Gems$9.99
  • 200 Gems$49.99
  • 500 Gems$99.99
None

Wooly Stack

No in-app purchases

Questions

Is NumColor AI free?
NumColor AI is free to download, with in-app purchases available.
Is Wooly Stack free?
Wooly Stack is free to download, with no in-app purchases.
Do NumColor AI or Wooly Stack have ads?
Both NumColor AI and Wooly Stack show ads.
Which is updated more often, NumColor AI or Wooly Stack?
NumColor AI ships an update every 2 days, and Wooly Stack every 2 days. Most recently, NumColor AI was updated on October 27, 2026 and Wooly Stack on October 28, 2026.

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