Comparison

Design Pattern Reference vs Sewpal

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

Head to head
About

Design Pattern Reference

Explore 23 essential design patterns across creational, structural, and behavioral categories. This reference app provides a comprehensive guide for software developers to understand and implement these fundamental programming concepts.

Highlights
  • 23 Design Patterns included
  • Creational Patterns
  • Structural Patterns
  • Behavioral Patterns
  • Comprehensive reference guide
Features
Read full description

《Design Pattern Reference》,Include 23 Design Patterns. ---Creational:Factory Method/Abstract Factory/Builder/Prototype/Singleton ---Structural: Adapter/Bridge/Composite/Decorator/Facade/Flyweight/Proxy ---Behavioral:Template Method/Chain of Responsibility/Command/Iterator/Mediator/Memento/Observer/State/Strategy/Visitor

About

Sewpal

Learn to sew, fix, and upcycle clothing with step-by-step tutorials and AI-powered pattern generation. Snap a photo to create custom patterns, get upcycling ideas, and ask an AI coach for instant sewing advice. Perfect for beginners and experienced makers.

Highlights
  • Step-by-step sewing tutorials
  • AI-generated sewing patterns from photos
  • Upcycling suggestions and DIY ideas
  • AI sewing coach for instant advice
  • Custom pattern generation for your size
  • Fabric and project tracking
Features
Read full description

Welcome to SewPal, your simple sewing companion for learning, repairing, upcycling, and creating with confidence. Whether you’re making your first project, fixing a favorite piece of clothing, or turning an idea into something new, SewPal gives you clear guidance every step of the way. Follow beginner-friendly tutorials, get creative project ideas, generate sewing pattern drafts from photos, and ask your AI Sewing Coach whenever you need help. Start with a free trial and discover sewing projects, inspiration, and practical guidance made for beginners, hobbyists, and DIY fashion lovers. What SewPal Can Do Step-by-Step Sewing Tutorials Learn sewing from the ground up with clear, visual instructions. SewPal helps you practice essential skills such as sewing straight seams, hemming garments, adding zippers, making bags, and completing simple clothing or home projects. Each tutorial is designed to be easy to follow, with practical tips that help you understand what to do next. Snap a Photo, Create a Pattern Draft See a garment, bag, or design idea you love? Take a photo and let SewPal help you create a starter sewing pattern or project guide based on your inspiration. You can use it as a creative starting point, then adjust the design for your size, fabric, and sewing level before cutting and sewing. Upcycling Ideas & DIY Inspiration Give old clothes and leftover fabric a second life. SewPal helps you discover creative ways to repair, redesign, and reuse what you already have. Turn jeans into a skirt, shirts into bags, fabric scraps into accessories, or simple materials into home decor projects. Ask the AI Sewing Coach Stuck on a sewing step? Ask the AI Sewing Coach for help anytime. Get guidance on common sewing questions, such as how to fix uneven stitching, choose the right thread, understand a pattern instruction, repair a stuck zipper, or decide which fabric is best for a project. Who Is SewPal For? Beginners Never sewn before? SewPal helps you start with simple projects, clear instructions, and confidence-building techniques. Hobbyists Already enjoy sewing? Explore new ideas, practice useful techniques, and keep your projects moving from inspiration to finished piece. Makers & Upcyclers Love DIY, sustainable fashion, or creative reuse? SewPal gives you practical ideas for repairing, repurposing, and restyling clothes and fabric. Why Use SewPal? Easy to Follow Clear steps, visual guidance, and beginner-friendly explanations. Creative Discover new sewing ideas, DIY inspiration, and personalized project directions. Practical Learn useful sewing skills for clothing, accessories, repairs, and home projects. Supportive Ask questions and get help when you’re unsure what to do next. Start Creating with SewPal Download SewPal today and see what you can make. Whether you’re repairing a seam, making your first bag, upcycling old clothes, or trying a new sewing idea, SewPal is here to guide you step by step. [About SewPal Premium] • Payment will be charged to your iTunes Account at confirmation of purchase. • Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. • The account will be charged for renewal within 24 hours before the end of the current period. • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription. • Subscriptions may be managed by the user, and auto-renewal may be turned off by going to iTunes Subscriptions after purchase. Terms of Use: https://app-service.getsewpal.com/static/user_agreement.html Privacy Policy: https://app-service.getsewpal.com/static/privacy_policy.html

Screenshots

Design Pattern Reference4 screens
Sewpal4 screens

Verdict

The call

The clearest difference is review sentiment: Design Pattern Reference at 100% against Sewpal's 50%. Design Pattern Reference also leads on in-app purchases (none vs 6) and iOS requirement (12.0 vs 17.0). Sewpal's advantage is price (Free vs $1.99) and update cadence (fortnightly vs every 36 months). On 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

Sewpal is free to download; Design Pattern Reference costs $1.99 up front. Sewpal sells 5 in-app purchases, starting at $3.99 per 7 days. Design Pattern Reference asks for nothing beyond the download.

UpkeepUpdate frequency

Design Pattern Reference ships an update every 36 months, Sewpal fortnightly. The most recent releases landed on September 22, 2026 and October 1, 2026 respectively.

Scorecard7 real differences · 4 level
Design Pattern Reference versus Sewpal: the parameters behind the verdict, then further details
ParameterDesign Pattern ReferenceSewpal
Price$1.99Free — better
Rating—4.8 (11K ratings) — better
Positive reviews100.0% of reviews — better49.7% of reviews
Number of ratings—11K — better
Update frequencyEvery 36 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
Best chart rank—#54 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size16 MB151 MB
Age rating4+4+
Developer强 马PIXELCELL.LIMITED

Customer experience

Design Pattern Reference

Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Sewpal

All ratings11,238 ratings
Positive94.5%
Neutral3.2%
Negative2.4%
Written reviews308 reviews
Positive49.7%
Neutral9.1%
Negative41.2%

In-app purchases

None

Design Pattern Reference

No in-app purchases

5 purchases

Sewpal

Subscriptions5
  • SewPal Premium7 Days trial$3.997 Days
  • SewPal Premium3 Days trial$3.997 Days
  • SewPal Premium1 Month trial2 variants$29.991 Year
Show 2 more
  • SewPal Premium7 Days trial$29.991 Year
  • SewPal Premium$29.991 Year

Questions

Is Design Pattern Reference free?
Design Pattern Reference costs $1.99, with no in-app purchases.
Is Sewpal free?
Sewpal is free to download, with in-app purchases available.
Do Design Pattern Reference or Sewpal have ads?
Neither Design Pattern Reference nor Sewpal shows ads.
Which is updated more often, Design Pattern Reference or Sewpal?
Design Pattern Reference ships an update every 36 months, and Sewpal fortnightly. Most recently, Design Pattern Reference was updated on September 22, 2026 and Sewpal on October 1, 2026.

Other comparisons