GLMK Catalog Sale vs Singleton | Advanced Discounts
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026 for GLMK Catalog Sale, Nov 9, 2026 for Singleton.
The short answer
- Both list a free plan. Paid plans start at $12/month for GLMK Catalog Sale and $9.99/month for Singleton.
- Singleton lists 13 features GLMK Catalog Sale’s listing doesn’t mention, including Bulk discounts, Bulk editing, Cross-sell discounts.
Head to head
- United States
- Australia
- United Kingdom
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Free
Growth
Pro
Free
- · 0 - 30 online store orders per month
- · Advanced discount conditions
- · Automatic or code-based discounts
- · Live chat & email support
- · Show discount price on product listings
- · Target products/customers/markets
Starter
- · 31 - 100 online store orders per month
- · Advanced discount conditions
- · Automatic or code-based discounts
- · Live chat & email support
- · Show discount price on product listings
- · Target products/customers/markets
Advanced
- · 101 - 500 online store orders per month
- · Advanced discount conditions
- · Automatic or code-based discounts
- · Live chat & email support
- · Show discount price on product listings
- · Target products/customers/markets
Enterprise
- · Advanced discount conditions
- · Automatic or code-based discounts
- · Live chat & email support
- · Show discount price on product listings
- · Target products/customers/markets
- · Unlimited online store orders per month
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureCatalog Sale helps merchants run sitewide promotions across the whole catalog in one place. Create percentage, fixed amount, shipping promotion, or BOGO promotions — automatic or discount codes. Exclude already-on-sale items and target VIP customer tags at checkout. Track discounted-order usage against clear limits. Built for merchants who want simple catalog-wide sales, not dozens of one-off product discounts.
Automatically apply discounts for selected customers, products, or cart values. Boost AOV with volume discounts, B2B wholesale pricing, shipping discounts, and countdown timers. Discounts apply automatically or via code, visible in cart drawer, page, and checkout. Target everyone or specific wholesale and B2B customer groups. Set advanced conditions, and highlight deals with discount widgets and timers.
- Sitewide percent-off and fixed-amount promotions
- Shipping promotions, BOGO, automatic or code discounts
- Exclude sale items, target tags, and track usage
- Create discounts for selected customers, selected products, with selected rules
- Create discounts also for everyone who visit your store with lot of options
- Create volume discounts based on products quantity, or based on cart total value
- Customers will see discounts in all types of cart drawers, cart and checkout
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 |  GLMK Catalog Sale |  Singleton |
|---|---|---|
| Detected stores | Not published | 104 |
| Net store change, 28 days | 0 | −1 |
| Stores added, 28 days | Not enough data | 1 |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Apparel & Accessories, Home & Garden, Health & Beauty |
| Top store countries | Not published | United States, Australia, United Kingdom |
Reviews
| Measure | GLMK Catalog Sale | Singleton |
|---|---|---|
| App Store rating | Not published | 5.0 ★ |
| App Store reviews | Not published | 35 |
| New reviews, 28 days | Not enough data | 0 |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | GLMK Catalog Sale | Singleton |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $12/month | $9.99/month(ahead) |
| Longest free trial | Not listed | 14 days |
| Plans listed | 3 | 4 |
Listing
| Measure | GLMK Catalog Sale | Singleton |
|---|---|---|
| Shopify category rank | #558 | #205(ahead) |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | Yes |
| Launched | Jul 22, 2026 | Feb 2, 2023 |
| Languages | 1 | 1 |
| Developer | GLMK Services LLC | Singleton software |
FAQ
GLMK Catalog Sale and Singleton: common questions
- Is GLMK Catalog Sale or Singleton cheaper?
- Both list a free plan. Paid plans start at $12/month for GLMK Catalog Sale and $9.99/month for Singleton. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- What features does each app list that the other doesn’t?
- GLMK Catalog Sale lists 5 the others don’t mention, such as BOGO, Campaigns, Coupons, Discount codes. Singleton lists 13 the others don’t mention, such as Bulk discounts, Bulk editing, Cross-sell discounts, Custom discounts. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- 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 Oct 13, 2026 for GLMK Catalog Sale, Nov 9, 2026 for Singleton; 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 Oct 13, 2026 for GLMK Catalog Sale, Nov 9, 2026 for Singleton. 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.