tiergain
Custom Fields vs Tiergain: product data fields or bundle architecture in 2026?
Custom Fields adds specifications, tabs, and attributes to product pages. Tiergain adds bundle offers that lift AOV 28%. Better product info helps customers decide. Better offers help them buy more.
Quick Verdict
Shopify Custom Fields (by Bonify) is an app that adds custom data fields to products, pages, and collections without code. Tiergain is a bundle builder that lifts AOV through offer architecture. Custom Fields structures your product information. Tiergain structures your product offers. Data and offers are different layers of the same store.
What is Shopify Custom Fields?
Shopify Custom Fields (by Bonify) is a Shopify app that lets merchants add custom data fields to products, collections, pages, and blog posts without editing code. It provides a visual editor for creating specifications, product tabs, size charts, and structured product data. Pricing starts free with paid plans from $12/month. It has a 4.4 rating on the Shopify App Store across 200+ reviews.
Where Shopify Custom Fields Falls Short
Product Data Fields, Not Revenue Architecture
Custom Fields adds specifications and attributes to product pages. It does not create bundle flows, tiered discounts, or offer stacks. Product information helps with the buying decision, not with cart growth.
No Bundle Builder or Cart-Level Offers
Custom Fields manages data display on product pages. It cannot build mix-and-match bundles, progressive discounts, or combined discount + shipping + gift rewards that lift AOV.
Information Display, Not Action Driver
Custom Fields shows specifications, size charts, and product details. That information helps customers make informed decisions. It does not create the incentive to add more items. Tiergain bundle rewards create that incentive.
No Revenue Generation
Custom Fields improves the product page experience through better data presentation. It does not generate incremental revenue. Tiergain generates revenue on every order through bundle architecture.
Static Data vs Dynamic Offers
Custom Fields displays the same information to every visitor. Tiergain bundle offers are dynamic: tier pricing changes as customers add items, rewards unlock progressively, and the experience responds to cart contents.
Feature-by-Feature Comparison
| Feature | Shopify Custom Fields | Tiergain |
|---|---|---|
| Primary function | Custom product data fields | Bundle builder with tiered rewards |
| Bundle type variety | No bundle features | 10+ architectures, fully customizable |
| Combined rewards | Not applicable | Discount + free shipping + free gift |
| Dollar thresholds | Not applicable | Yes, quantity or dollar |
| Custom data fields | Product specs, tabs, size charts | Not included |
| Visual field editor | Drag-and-drop field builder | Not applicable |
| Product page tabs | Custom tabbed content sections | Not included |
| Free plan available | Yes, limited free plan | Yes, free plan |
| Pricing | Free to $45/month | $15/$50/$150 per month |
| Customer-facing | Yes, static data display | Yes, interactive bundle widget |
| AOV impact | Indirect - better info may lift conversion | Direct - bundles lift cart value 28%+ |
| Dynamic interaction | No, static content display | Yes, tiers update as items are added |
Why Merchants Switch to Tiergain
28% AOV lift vs better product specifications
Tiergain lifts AOV 28% through bundle offers. Custom Fields displays product specifications and tabs. One grows the cart. The other informs the buyer. Both improve the store, but only bundles generate incremental revenue.
Dynamic bundle experience vs static data display
Tiergain bundles are interactive: add items, see tiers update, unlock rewards. Custom Fields shows the same specifications to every visitor. Dynamic experiences drive action. Static data supports decisions.
Revenue tool vs information tool
Tiergain generates revenue from every order. Custom Fields presents information that may help conversion but does not directly grow cart value. For revenue impact per dollar invested, bundles win.
Frequently Asked Questions
Can I use Tiergain and Custom Fields together?
Yes. Custom Fields displays product specifications on product pages. Tiergain builds bundle offers on the same pages. Better product info helps customers decide. Bundle offers help them buy more.
Does Custom Fields lift AOV like Tiergain?
No. Custom Fields is a product data display tool. It may help conversion through better specifications but does not change cart value. Tiergain directly lifts AOV 28% through bundle architecture.
Is Tiergain cheaper than Custom Fields?
Both start free. Custom Fields paid plans go to $45/month. Tiergain Pro is $50/month. Similar pricing, completely different functions. Custom Fields organizes data. Tiergain builds revenue-generating offers.
How long does it take to set up Tiergain?
Under 10 minutes. Install from the Shopify App Store, add the widget, build your first bundle. No field definitions, no data entry, no template customization.
Do I need custom fields if I have bundles?
They serve different purposes. Custom Fields improves product information display. Tiergain builds bundle offers. A store with great product data AND great bundle offers converts better on both dimensions.
Which should I install first?
Tiergain for immediate revenue impact. Custom Fields when you need to display product specifications, size charts, or tabbed content. Revenue generation is more urgent than data presentation for most stores.
Ready to switch from Shopify Custom Fields?
Free plan available. No credit card required.