Shopify payments and checkout signals for ecommerce SaaS sellers
StoreRadar found 12 public payments and checkout app signals. This page puts them in one place so ecommerce SaaS sellers can see which tools to check first.
What this group shows
| Active app signals | 12 |
|---|---|
| Largest observed signal | Shop Pay · 28,806 |
| Smallest observed signal | PayTomorrow · 15 |
| Signals with extra profile details | 6 of 12 |
| Signals with same-store evidence | 2 of 12 |
| Last checked | 22 September 2026 |
Counts are public storefront observations. One store can appear under more than one signal.
How to use this page
Start with the app signal closest to your product. Add store type, catalogue or country when you ask for a list.
If you sell checkout or payment tools, this group helps you compare stores with visible payment-workflow signals.
Open the app pages below when you need the count, observation date and any available breakdown. Keep the page date with anything you cite.
Largest signals in this group
| Rank | App signal | Observed storefronts | Extra evidence |
|---|---|---|---|
| 1 | Shop Pay | 28,806 | profile and same-store evidence |
| 2 | Afterpay | 6,817 | profile and same-store evidence |
| 3 | Klarna | 4,293 | profile details |
| 4 | Sezzle | 1,437 | profile details |
| 5 | Zip | 1,193 | profile details |
| 6 | Affirm | 243 | profile details |
| 7 | Laybuy | 159 | count only |
| 8 | Paidy | 55 | count only |
This is ordered by observed storefront count in the current StoreRadar snapshot. It is not a vendor-quality ranking or market-share estimate.
Every signal in this group
- Shop Pay · 28,806 observed storefronts · 22 September 2026
- Afterpay · 6,817 observed storefronts · 22 September 2026
- Klarna · 4,293 observed storefronts · 22 September 2026
- Sezzle · 1,437 observed storefronts · 22 September 2026
- Zip · 1,193 observed storefronts · 22 September 2026
- Affirm · 243 observed storefronts · 22 September 2026
- Laybuy · 159 observed storefronts · 22 September 2026
- Paidy · 55 observed storefronts · 22 September 2026
- Tamara · 50 observed storefronts · 22 September 2026
- Tabby · 48 observed storefronts · 22 September 2026
- Splitit · 26 observed storefronts · 22 September 2026
- PayTomorrow · 15 observed storefronts · 22 September 2026
Open the Payments and checkout category hub · Return to For ecommerce SaaS and integration sellers
Get the stores
Tell us what you sell. We can use this payments and checkout signal with other filters to build a private list, then look for verified founder emails where the right person is available.
Get Payments and checkout stores + verified founder emails →Method and limits
StoreRadar.co checks public Shopify storefronts and counts the app signals it can see. We checked this group on 22 September 2026. Counts can change as stores and their tools change.
A signal is a clue from a public storefront. It is not proof that a store pays for a tool, wants to buy, or has a certain result. The category label is our way to group similar tools.
Read the methodology · Browse the dataset catalog · Return to app intelligence