COLY ‑ Additional Order Form vs Smart Size Chart & Size Guidefor Shopify (2026)
COLY ‑ Additional Order Form and Smart Size Chart & Size Guide both aim to improve the product page experience, but cater to fundamentally different needs. COLY allows merchants to collect specific product customization details before checkout using custom fields. This is ideal for businesses selling personalized or configurable products. In contrast, Smart Size Chart & Size Guide helps customers determine the correct product size, primarily focusing on reducing returns for clothing, shoes, and other size-dependent items. While both fall under the 'Custom products' and 'Product variants' categories, their applications are distinct: COLY enhances product personalization, while Smart Size Chart ensures accurate sizing.
At a Glance
COLY ‑ Additional Order Form
2 reviews
Smart Size Chart & Size Guide
103 reviews
Detailed Overview
COLY ‑ Additional Order Form
Collect product customization details with custom fields before checkout
Key Features
- 9 field types: Textfield, select, date picker, radio box, checkbox & more
- Form validations: Mandatory fields, minimum and maximum characters
- Display conditions: Display on selected product by product, vendor, type and tag
- Export order line properties to CSV or XLSX excel file
- Theme app extension: Customise your form to match your theme design
Smart Size Chart & Size Guide
Increase sales with stylish, unlimited size charts and size guides that fit your brand design.
Key Features
- Highly customizable: Add images, brand colors, fonts, and adjust popup position.
- Content-rich: Size chart templates for clothing, shoes, jewelry, pets, and more.
- Responsive design: Size charts look perfectly on mobile, desktop, and tablets.
- Lightweight app: Installs easily and removes cleanly without leftover code.
- Advanced features: Multi-language size charts, tabs for multiple size guides.
Feature Comparison
| Rating | 5/5 | 5/5 |
Rating COLY ‑ Additional Order Form5/5 Smart Size Chart & Size Guide5/5 | ||
| Reviews | 2 | 103 |
Reviews COLY ‑ Additional Order Form2 Smart Size Chart & Size Guide103 | ||
| Primary Function | Collect Product Customization Details | Provide Size Charts and Guides |
Primary Function COLY ‑ Additional Order FormCollect Product Customization Details Smart Size Chart & Size GuideProvide Size Charts and Guides | ||
| Key Features | Custom Fields, Conditional Display, CSV/XLSX Export | Customizable Charts, Size Templates, Multi-Language Support |
Key Features COLY ‑ Additional Order FormCustom Fields, Conditional Display, CSV/XLSX Export Smart Size Chart & Size GuideCustomizable Charts, Size Templates, Multi-Language Support | ||
| Target Merchant | Businesses selling personalized products | Businesses selling clothing, shoes, or other sized items |
Target Merchant COLY ‑ Additional Order FormBusinesses selling personalized products Smart Size Chart & Size GuideBusinesses selling clothing, shoes, or other sized items | ||
| Ease of Use (Inferred) | Potentially requires more setup for complex customizations | Likely easier to set up basic size charts due to templates |
Ease of Use (Inferred) COLY ‑ Additional Order FormPotentially requires more setup for complex customizations Smart Size Chart & Size GuideLikely easier to set up basic size charts due to templates | ||
| Value Proposition | Increase sales by enabling customization and personalization | Reduce returns and increase sales by ensuring correct sizing |
Value Proposition COLY ‑ Additional Order FormIncrease sales by enabling customization and personalization Smart Size Chart & Size GuideReduce returns and increase sales by ensuring correct sizing | ||
- Conversion Audit
- Speed Audit
- SEO Audit
Conversion Audit
Our Verdict
The choice between COLY ‑ Additional Order Form and Smart Size Chart & Size Guide depends heavily on the product offerings of the merchant. If the merchant sells customizable goods, COLY is the clear choice, despite its lower number of reviews. It allows for intricate product personalization. On the other hand, if the merchant sells items where sizing is crucial, like apparel or footwear, Smart Size Chart & Size Guide offers a comprehensive solution. The higher number of reviews also suggests a more established user base and potentially more reliable support.
Common Questions
Which app helps me sell personalized mugs?
COLY ‑ Additional Order Form is designed to collect customization details for products like personalized mugs.
Which app will help customers choose the correct shoe size?
Smart Size Chart & Size Guide helps customers determine the correct shoe size using size charts.
Is COLY better for stores that allow customers to input text on products?
Yes, COLY's textfield input is ideal for letting customers provide custom text.
Which app supports different languages?
Smart Size Chart & Size Guide specifically highlights multi-language support.
Which app has a more established user base?
Smart Size Chart & Size Guide, with 103 reviews, has a significantly larger user base than COLY, which has only 2 reviews.
Get More From Your Shopify Store
Run audits for SEO, CRO, PageSpeed, and AI visibility. Get a clear report and actionable fixes.
Try Fix My Store