The 10 Best Rez Apps for Shopify

The top 10 apps merchants see when they search the Shopify App Store for rez, in the exact order the store ranks them. Only Shopify's organic ranking is shown, never sponsored ads.

Updated October 4, 2026 · Organic ranking

Maintained by Rankbase, built by a Shopify app developer

1

REZ Preorder, Back In Stock

★ 5.0 (1,577 reviews) · Free plan available

Recover sales with pre order, notify me & back in stock alert
Built for Shopify
2

REZ Bundles & Quantity Breaks

★ 5.0 (6 reviews) · Free

Up AOV with quantity breaks, product bundles, upsell and BXGY
3

Urgency+ Low Stock Counter

★ 4.6 (27 reviews) · Free trial available

Create urgency with real inventory or Manual stock mode
Built for Shopify
4

Swap Global

★ 4.7 (42 reviews) · Free to install

Duties, taxes, and DDP shipping. You stay merchant of record.
5

Judge.me Product Reviews App

★ 5.0 (47,959 reviews) · Free plan available

Collect unlimited product reviews, star ratings, testimonials
Built for Shopify
6

Instafeed ‑ Instagram Feed

★ 4.9 (2,180 reviews) · Free plan available

Display Instagram feeds, Reels & Insta UGC as shoppable videos
Built for Shopify
7

Powerful Contact Form Builder

★ 4.9 (2,534 reviews) · Free plan available

Your all-in-one form app for custom forms, registration forms
Built for Shopify
8

AG Product Reviews App & UGC

★ 5.0 (3,165 reviews) · Free

Build trust w/ unlimited product reviews, photos, testimonials
Built for Shopify
9

Reputon Google Reviews

★ 5.0 (1,535 reviews) · Free to install

Display & collect Google customer reviews with AI. Boost sales
Built for Shopify
10

Appointment Booking App Apntly

★ 5.0 (1,632 reviews) · Free plan available

Appointment booking app to schedule services & events calendar
Built for Shopify

Frequently asked questions

Which is the best Rez app for Shopify?

Based on the Shopify App Store's own organic ranking for "rez", REZ Preorder, Back In Stock currently holds the #1 spot, with a 5.0 star rating across 1,577 reviews. The best choice for your store still depends on your requirements, so compare the top results above.

How is this ranking determined?

We record the organic results merchants actually see when searching the Shopify App Store for "rez", refreshed daily. Shopify's own sponsored ("Ad") results are excluded, so positions reflect its real search ranking rather than paid promotion. Source: the Shopify App Store search results for "rez", you can verify the current ranking there yourself.

Which Rez apps are Built for Shopify?

8 of the top 10 rez apps hold the Built for Shopify badge: REZ Preorder, Back In Stock, Urgency+ Low Stock Counter, Judge.me Product Reviews App, Instafeed ‑ Instagram Feed, Powerful Contact Form Builder and more.

What does the Built for Shopify badge mean?

Built for Shopify
Built for Shopify is the highest level of recognition Shopify awards an app. To earn the badge, an app must meet Shopify's standards for safety, performance, ease of use, and proven usefulness: it cannot slow down the admin, storefront, or checkout, must integrate seamlessly into the Shopify admin, and must demonstrate quality through installs, reviews, and ratings over time. When comparing similar apps, preferring ones with the badge is a safe default. Learn more about the Built for Shopify badge →

As of October 4, 2026, the top-ranked rez app on the Shopify App Store is REZ Preorder, Back In Stock, with a 5.0 star rating across 1,577 reviews. 8 of the top 10 carry the Built for Shopify badge, and the average rating is 4.9 stars across 60,657 reviews.

Related keyword rankings

All Rez rankings → · Browse all keywords →

Rank higher on the Shopify App Store

Rankbase helps Shopify app developers track keyword positions, analyze install click data, and optimize app listings to rank higher in the Shopify App Store.

Explore Rankbase →

Built by Craftshift

Rankbase is made by Craftshift, a Shopify Partner building apps for product images, variants, and bulk catalog work. We built Rankbase to track the App Store rankings of our own apps first, then opened it to other developers, and this directory grew out of that work. The rankings on these pages are Shopify's own organic search results; we never edit them, including for our own apps.

Craftshift apps on the Shopify App Store