Fast Bundle alternative: Offer Suite compared

Fast Bundle and Offer Suite, side by side
Question	Fast Bundle	Offer Suite
What it is	A bundle and upsell app with fixed bundles, mix-and-match, multipacks, build-a-box, gift boxes, subscription boxes and frequently bought together. Fast Bundle on the Shopify App Store, read 14 October 2026 (opens in a new tab)	An offer engine for Shopify brands, run by their agents: offers are validated documents authored through an API and an MCP server, and bound to Shopify.
Pricing	Free for development stores and eligible merchants up to $500 of bundle sales a month; three Standard plans, "$19 /mo" ("Up to $1,000 revenue from Fast Bundle"), "$49 /mo" (up to $3,000) and "$139 /mo" (up to $10,000), or $15, $39 and $115 a month billed annually; higher-volume plans inside the app; 7-day free trial. Fast Bundle pricing, read 14 October 2026 (opens in a new tab) Its App Store listing sells automatic bundle detection as an add-on: "Optional: Auto Bundle Detection +$49/mo". Fast Bundle on the Shopify App Store, read 14 October 2026 (opens in a new tab)	Not published. Offer Suite is not open yet; brands join the waitlist.
What it measures	Its listing names A/B testing and AI recommendations. Fast Bundle on the Shopify App Store, read 14 October 2026 (opens in a new tab)	Forecast and realized profit per offer option, first orders and renewals apart, net of refunds, with cancelled orders excluded, by traffic source down to the ad.
Who renders the offer	It renders bundles on product pages, in a cart drawer and in pop-ups. Fast Bundle on the Shopify App Store, read 14 October 2026 (opens in a new tab)	Your developers can render the buy box from the offer's data. With no developers, a merchant adds the Verified offer theme block in the Shopify theme editor and pastes an offer id. Either way, Offer Suite serves the offer and builds the Shopify cart. After the purchase, its extension can show one upsell on Shopify's post-purchase page, once the merchant picks Offer Suite for that page.
Costs	Its calculator takes product costs, an extra bundle cost, payment processing fees and a returns reserve; it has no input for shipping costs and does not mention subscriptions. Fast Bundle's bundle pricing calculator, read 14 October 2026 (opens in a new tab)	Costs are a dated ledger: each order is costed at the costs in effect on its date. A later correction restates past orders in the current view, and the as-recorded view keeps what each order was booked with.
Agents and AI	Not stated on the pages we read.	Agents create and publish offers through the API and MCP. Nothing goes live until a real Shopify cart charges what the offer promises.

Fast Bundle and Offer Suite, side by side

Question

Fast Bundle

Offer Suite

What it is

A bundle and upsell app with fixed bundles, mix-and-match, multipacks, build-a-box, gift boxes, subscription boxes and frequently bought together. Fast Bundle on the Shopify App Store, read 14 October 2026 (opens in a new tab)

An offer engine for Shopify brands, run by their agents: offers are validated documents authored through an API and an MCP server, and bound to Shopify.

Pricing

Free for development stores and eligible merchants up to $500 of bundle sales a month; three Standard plans, "$19 /mo" ("Up to $1,000 revenue from Fast Bundle"), "$49 /mo" (up to $3,000) and "$139 /mo" (up to $10,000), or $15, $39 and $115 a month billed annually; higher-volume plans inside the app; 7-day free trial. Fast Bundle pricing, read 14 October 2026 (opens in a new tab)

Its App Store listing sells automatic bundle detection as an add-on: "Optional: Auto Bundle Detection +$49/mo". Fast Bundle on the Shopify App Store, read 14 October 2026 (opens in a new tab)

Not published. Offer Suite is not open yet; brands join the waitlist.

What it measures

Its listing names A/B testing and AI recommendations. Fast Bundle on the Shopify App Store, read 14 October 2026 (opens in a new tab)

Forecast and realized profit per offer option, first orders and renewals apart, net of refunds, with cancelled orders excluded, by traffic source down to the ad.

Who renders the offer

It renders bundles on product pages, in a cart drawer and in pop-ups. Fast Bundle on the Shopify App Store, read 14 October 2026 (opens in a new tab)

Your developers can render the buy box from the offer's data. With no developers, a merchant adds the Verified offer theme block in the Shopify theme editor and pastes an offer id. Either way, Offer Suite serves the offer and builds the Shopify cart. After the purchase, its extension can show one upsell on Shopify's post-purchase page, once the merchant picks Offer Suite for that page.

Costs

Its calculator takes product costs, an extra bundle cost, payment processing fees and a returns reserve; it has no input for shipping costs and does not mention subscriptions. Fast Bundle's bundle pricing calculator, read 14 October 2026 (opens in a new tab)

Costs are a dated ledger: each order is costed at the costs in effect on its date. A later correction restates past orders in the current view, and the as-recorded view keeps what each order was booked with.

Agents and AI

Not stated on the pages we read.

Agents create and publish offers through the API and MCP. Nothing goes live until a real Shopify cart charges what the offer promises.

Where Fast Bundle wins

A free plan for development stores and eligible merchants whose bundles bring in up to $500 a month. Fast Bundle pricing, read 14 October 2026 (opens in a new tab)
Its bundle calculator is careful: fees, a returns reserve, the sales lift needed to break even, and stock-clearance maths. Fast Bundle's bundle pricing calculator, read 14 October 2026 (opens in a new tab)
Shopify POS integration and automatic bundle detection in cart, on its higher-volume plans. Fast Bundle pricing, read 14 October 2026 (opens in a new tab)
It renders the bundle for you, with 3,545 reviews at 5.0. Fast Bundle on the Shopify App Store, read 14 October 2026 (opens in a new tab)

Where Offer Suite is different

Offer Suite's pricing includes subscriptions and the shipping you give away: pick and pack, card fees, a refund reserve, free shipping, and the renewal margin at the subscribe-and-save price. Carrier postage enters realized profit once your agent posts each order's actual cost; there is no carrier rate table yet.
It tracks realized profit per option after the sale: net of refunds, renewals apart, cancelled orders left out and counted separately.
Nothing goes live until a real Shopify cart charges what the offer promises.

Questions

Is Offer Suite a Fast Bundle alternative?

For measuring and verifying bundles on profit, yes; for a ready-made bundle widget, no. Offer Suite's bundle calculator is on this site and free to use either way.

What does Fast Bundle's calculator leave out?

Its page takes product costs, fees and a returns reserve, and has no input for shipping costs or subscriptions. A bundle's shipping saving is usually the main reason it can be discounted.

Sources

Fast Bundle on the Shopify App Store read 14 October 2026
Fast Bundle's bundle pricing calculator read 14 October 2026
Fast Bundle pricing read 14 October 2026

Something here out of date or wrong? Write to privacy@offersuite.io and we'll re-read the page and correct it.

See what your own offers earn.

Offer Suite opens to Shopify brands a few at a time. Join the waitlist, or ask for a free profit audit of your past orders: realized profit per item and per offer option, what each costs you, and where margin leaks.

Join the waitlist Request a free profit audit