Shelfback vs Sold Out Straight To Bottom
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Sep 10, 2026 for Shelfback, Oct 13, 2026 for Sold Out Straight To Bottom.
The short answer
- Only Sold Out Straight To Bottom lists a free plan.
Head to head
Development stores
- · Move in-stock products to the top
- · Re-sort when products come back in stock
- · Sort products automatically in real-time
Starter
- · Move in-stock products to the top
- · Re-sort when products come back in stock
- · Sort products automatically in real-time
Growth
- · Move in-stock products to the top
- · Re-sort when products come back in stock
- · Sort products automatically in real-time
Scale
- · Move in-stock products to the top
- · Re-sort when products come back in stock
- · Sort products automatically in real-time
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureSold-out products push shoppers away, and they are easy to miss. Shelfback watches your inventory and keeps out-of-stock products from cluttering your collections, so shoppers see what they can buy. It never drafts, hides, or deletes products, so your product pages and URLs stay intact.
When a product sells out it often stays near the top of your collection, where shoppers see it first. This app fixes that automatically: in-stock products stay on top and sold-out ones move to the bottom. Switch it on for a collection and it stays sorted as inventory changes, in real time. Restocked products return to their place.
- Automatically move out-of-stock products to the bottom of your collections
- Email alerts when a product sells out, plus an optional daily summary
- See which top-sellers are low or out of stock, ranked by restock priority
- Exclude any product, tag, vendor, or product type so it is never moved
- Auto-sort a collection by turning on a single switch to move out-of-stock produc
- React in real time, with re-sorting that follows inventory, product, and collect
- Manage in bulk by enabling or disabling many collections together.
- Automatically enroll every new collection in auto-sort
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  Shelfback |  Sold Out Straight To Bottom |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | Shelfback | Sold Out Straight To Bottom |
|---|---|---|
| App Store rating | Not published | Not published |
| App Store reviews | Not published | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Shelfback | Sold Out Straight To Bottom |
|---|---|---|
| Free plan | Not listed | Yes |
| Lowest paid monthly plan | No monthly plan listed | $2.99/month |
| Longest free trial | Not listed | 14 days |
| Plans listed | Not published | 4 |
Listing
| Measure | Shelfback | Sold Out Straight To Bottom |
|---|---|---|
| Shopify category rank | #49(ahead) | #60 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Sep 9, 2026 | Jun 18, 2026 |
| Languages | 1 | 1 |
| Developer | twinecom | DNAFactory |
FAQ
Shelfback and Sold Out Straight To Bottom: common questions
- Is Shelfback or Sold Out Straight To Bottom cheaper?
- Only Sold Out Straight To Bottom lists a free plan. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Sep 10, 2026 for Shelfback, Oct 13, 2026 for Sold Out Straight To Bottom; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Sep 10, 2026 for Shelfback, Oct 13, 2026 for Sold Out Straight To Bottom. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.