tiergain
Fast Bundle vs Tiergain in 2026: quick kits or deep bundle architecture?
Fast Bundle lives up to its name - fast setup, basic bundles. Tiergain goes deeper with 10 architectures, combined rewards, and mobile-first builders.
Quick Verdict
Fast Bundle creates quick product kits. Tiergain delivers 10 architectures with progressive combined rewards that lift AOV 22-34% - far beyond basic bundling.
What is Fast Bundle?
Fast Bundle is a Shopify bundle app that focuses on quick bundle creation with product kits, volume discounts, and mix-and-match options. It offers a simple interface for creating basic bundle configurations. Pricing starts at $19.99/month with a free trial. It has a 4.7 rating and is popular for its ease of use and fast setup.
Where Fast Bundle Falls Short
Limited Bundle Architectures
Fast Bundle supports basic kits and simple mix-and-match. It does not offer anchor product flows, meal builders, gift set builders with mandatory packaging, or subscription box patterns.
No Combined Reward Types
Fast Bundle offers percentage or fixed discounts. It cannot combine discount + free shipping + free gift in progressive tiers - the stacking that drives customers up to bigger bundles.
Basic Mobile Experience
Fast Bundle's mobile rendering is responsive but not mobile-first. It lacks thumb-friendly builders, swipe-to-add cards, and sticky bundle bars that lift mobile AOV.
No Dollar-Based Thresholds
Fast Bundle only supports quantity triggers. Dollar thresholds are essential for luxury, B2B, and mixed-catalog stores where customers order different product combinations.
Limited Theme Customization
Fast Bundle offers basic color and layout options. Tiergain provides 20+ styling controls with live preview, letting merchants match the bundle widget to any theme perfectly.
Feature-by-Feature Comparison
| Feature | Fast Bundle | Tiergain |
|---|---|---|
| Bundle type variety | Basic kits + simple mix-and-match | 10+ architectures, fully customizable |
| Combined rewards | Single discount type | Discount + free shipping + free gift |
| Dollar thresholds | No | Yes, quantity or dollar |
| Sequential bundle flows | No | Yes, step-by-step |
| Setup speed | Fast, simple interface | Under 10 minutes |
| Mobile-first design | Basic responsive | Mobile-first with 20+ controls |
| Theme customization | Basic options | 20+ controls, live preview |
| Free plan | Free trial only | Yes, free forever plan |
| Works with all themes | Yes | Yes, no code |
| Shopify Functions | No | Yes, server-side discounts |
| Volume discounts | Yes, basic tiers | Yes, with combined rewards |
| Category rules per step | No | Yes (min/max/exact/optional) |
Why Merchants Switch to Tiergain
AOV lifts 22-34% with combined progressive rewards
Tiergain stacks discount + free shipping + free gift at each tier. Fast Bundle offers single-type discounts. The combined rewards drive customers to the next tier - that is where the AOV lift comes from.
10 bundle architectures vs basic product kits
Tiergain supports anchor products, meal builders, gift sets, subscription boxes, and more. Fast Bundle handles basic kits and simple mix-and-match - a fraction of the possibilities.
Mobile-first builders for 70%+ of your traffic
Tiergain is built mobile-first with thumb-friendly interfaces. Fast Bundle renders basic responsive layouts. On mobile, the UX difference translates directly to AOV.
Frequently Asked Questions
Can I migrate my Fast Bundle bundles to Tiergain?
Yes. Install Tiergain and recreate your bundles with enhanced tiers and combined rewards. Tiergain's setup takes under 10 minutes per bundle. Remove Fast Bundle once you are live.
Is Tiergain cheaper than Fast Bundle?
Tiergain starts free. Pro is $50/month. Fast Bundle starts at $19.99/month. Tiergain's free plan is more generous than Fast Bundle's trial, and Pro delivers significantly deeper bundle functionality.
How long does it take to set up Tiergain?
Most merchants go live with their first bundle in under 10 minutes. Tiergain uses Shopify Theme App Extensions - drag and drop, no code, works with any theme.
Does Fast Bundle support the same bundle types as Tiergain?
No. Fast Bundle supports basic kits and simple mix-and-match. Tiergain supports 10 architectures including anchor products, meal builders, gift sets, subscription boxes, progressive unlock, and forced bundles.
Can Tiergain combine discounts with free shipping and free gifts?
Yes. Tiergain is the only Shopify bundle app that combines discount + free shipping + free gift in progressive tiers. Fast Bundle offers single discount types only.
Ready to switch from Fast Bundle?
Free plan available. No credit card required.