klarna ‑ UseePay vs UnumPay
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Sep 3, 2026 for klarna, Oct 22, 2026 for UnumPay.
The short answer
- On the Shopify App Store: klarna 2.1 from 10 reviews and UnumPay 4.8 from 38 reviews.
- UnumPay lists 2 features klarna’s listing doesn’t mention, including Personalized messages, Recurring invoices.
Head to head
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Pay-as-You-Go
- · Advance Payment Collection
- · Multi-Currency Payment Acceptance
- · Multiple Payment Gateways
- · Round Off Amount
- · Usage-based Charges
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureUseePay's mission is to build a universal, secure, and efficient electronic payment ecosystem. At present, UseePay supports major international credit & debit cards, digital wallets, and other APMs. Meanwhile, UseePay actively constructs online payment, corporate wallets, global collection, pay-outs and other comprehensive payment service capabilities.
With UnumPay you get full control over online payment setup on your store, from activating local and global gateways to tracking every transaction in real time. Everything your store needs to accept payments globally is in one place.
- Coverage of most countries and regions worldwide.
- Diversified payment options help with payment conversion rates.
- Covering The Entire Cross-border Industry Scenarios.
- Customizable Dashboard
- Paid Order Reporting
- Payment Gateway Configuration
- Refund Payment
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 |  klarna |  UnumPay |
|---|---|---|
| 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 | klarna | UnumPay |
|---|---|---|
| App Store rating | 2.1 ★ | 4.8 ★(ahead) |
| App Store reviews | 10 | 38(ahead) |
| New reviews, 28 days | Not enough data | 0 |
| Reviewers a year or more in | Not enough data | Not enough data |
FAQ
klarna and UnumPay: common questions
- Which has better reviews, klarna or UnumPay?
- On the Shopify App Store: klarna 2.1 from 10 reviews and UnumPay 4.8 from 38 reviews.
- What features does each app list that the other doesn’t?
- UnumPay lists 2 the others don’t mention, such as Personalized messages, Recurring invoices. 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 Sep 3, 2026 for klarna, Oct 22, 2026 for UnumPay; 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 3, 2026 for klarna, Oct 22, 2026 for UnumPay. 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.