SB Prescription Eye Lens vs Smart Size Chart & Size Guidefor Shopify (2026)
SB Prescription Eye Lens and Smart Size Chart & Size Guide are both Shopify apps with perfect 5/5 ratings, but they cater to vastly different needs. SB Prescription Eye Lens focuses on the highly specialized market of eyewear retailers. It empowers them to offer customized prescription lenses and glasses through features like prescription uploads, manual form input, and customizable RX options. The app aims to streamline the complex process of selling prescription eyewear online, offering multiple lens customization options. Smart Size Chart & Size Guide, on the other hand, addresses a more general e-commerce challenge: helping customers find the right size. It enables merchants to create stylish, brand-consistent size charts for various product categories, reducing returns and improving the customer experience. The target audience is any online retailer selling clothing, shoes, jewelry, or other items where size is a critical factor.
At a Glance
SB Prescription Eye Lens
16 reviews
Smart Size Chart & Size Guide
103 reviews
Detailed Overview
SB Prescription Eye Lens
Transform your eye-wear store with smart prescription glasses & lens solutions for every customer’s needs!
Key Features
- Upload prescription file (JPEG, PNG, PDF) or Use Manual Prescription form
- Create unlimited custom RX options like Axis, Sphere, Cylinder etc for eyelens/glasses
- Offer prescription lens & glasses option on specific products or all products
- Customers can set single/both eye RX & buy separate lens qty for each eye
- Sell prescription lenses with unlimited steps flow, lens inputs and add-ons
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 SB Prescription Eye Lens5/5 Smart Size Chart & Size Guide5/5 | ||
| Reviews | 16 | 103 |
Reviews SB Prescription Eye Lens16 Smart Size Chart & Size Guide103 | ||
| Target Merchant | Eyewear retailers | Apparel, footwear, jewelry retailers (generally anyone selling sized items) |
Target Merchant SB Prescription Eye LensEyewear retailers Smart Size Chart & Size GuideApparel, footwear, jewelry retailers (generally anyone selling sized items) | ||
| Core Functionality | Prescription lens customization and ordering | Size chart creation and display |
Core Functionality SB Prescription Eye LensPrescription lens customization and ordering Smart Size Chart & Size GuideSize chart creation and display | ||
| Key Feature 1 | Prescription upload/manual input | Customizable size chart design |
Key Feature 1 SB Prescription Eye LensPrescription upload/manual input Smart Size Chart & Size GuideCustomizable size chart design | ||
| Key Feature 2 | Custom RX options | Mobile-responsive design |
Key Feature 2 SB Prescription Eye LensCustom RX options Smart Size Chart & Size GuideMobile-responsive design | ||
| Value Proposition | Simplify eyewear ordering process and offer custom lens options | Reduce returns by helping customers find the right size |
Value Proposition SB Prescription Eye LensSimplify eyewear ordering process and offer custom lens options Smart Size Chart & Size GuideReduce returns by helping customers find the right size | ||
| Complexity | Potentially higher due to prescription details | Potentially simpler due to template driven design |
Complexity SB Prescription Eye LensPotentially higher due to prescription details Smart Size Chart & Size GuidePotentially simpler due to template driven design | ||
Our Verdict
The choice between these two apps is straightforward. SB Prescription Eye Lens is specifically designed for eyewear retailers who need to offer prescription lenses and glasses online. If you're not selling eyewear, this app is irrelevant. Smart Size Chart & Size Guide, while potentially useful for a broader range of merchants selling sized products, could provide considerable value to apparel, footwear, or jewellery merchants. If a merchant operates an online store selling items where size is a determinant factor in purchasing decisions, then they will see greater gains in using Smart Size Chart & Size Guide.
Common Questions
Which app is easier to set up and use?
Smart Size Chart & Size Guide might be easier for merchants selling general clothing and shoes, as it relies on templates. SB Prescription Eye Lens requires configuring prescription types and rules, which is more technically complex.
Can both apps integrate with custom product options?
Yes, both apps are listed in the 'Custom products' category, suggesting they can integrate with custom product options. However, SB Prescription Eye Lens's customization is centered on lens specifications, while Smart Size Chart & Size Guide allows for customization in the chart's appearance.
Which app is better for mobile users?
Smart Size Chart & Size Guide explicitly mentions responsive design, suggesting it's optimized for mobile. SB Prescription Eye Lens doesn't specifically call it out, but good design practices dictate it should be responsive as well. Without testing, it's impossible to definitively say which performs better on mobile.
Which app is better for increasing sales?
Both apps aim to increase sales but do so differently. SB Prescription Eye Lens boosts sales by enabling custom prescription lens sales online. Smart Size Chart & Size Guide increases sales by reducing returns and increasing customer confidence in their purchase.
Do both apps offer multi-language support?
Smart Size Chart & Size Guide clearly states multi-language support as an advanced feature. The description for SB Prescription Eye Lens mentions translations. So, both apps could offer multi-language support, but Smart Size Chart & Size Guide explicitly states this feature.
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