UnumPay vs Unzer Checkout Booster
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 22, 2026 for UnumPay, Jun 1, 2026 for Unzer Checkout Booster.
The short answer
- Unzer Checkout Booster lists 5 features UnumPay’s listing doesn’t mention, including Payment messages, Widget color, Widget design.
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 featureWith 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.
The app displays installment and invoice messaging widgets on product and cart pages, with configurable layout, colors, fonts, and info modals. Merchants set checkout display name, sort order, minimum and maximum cart total, allowed customer countries, allowed currencies, and company name requirements per Unzer payment method. Payment events from Unzer — captures, refunds, and cancellations — sync to Shopify orders.
- Customizable Dashboard
- Paid Order Reporting
- Payment Gateway Configuration
- Refund Payment
- Show installment and invoice messaging on product and cart pages.
- Set name, order, cart limits, countries, and currencies per payment method.
- Sync captures, refunds, and cancellations between Shopify and Unzer.
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 |  UnumPay |  Unzer Checkout Booster |
|---|---|---|
| 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 | UnumPay | Unzer Checkout Booster |
|---|---|---|
| App Store rating | 4.8 ★ | Not published |
| App Store reviews | 38 | Not published |
| New reviews, 28 days | 0 | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | UnumPay | Unzer Checkout Booster |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | No monthly plan listed | No monthly plan listed |
| Longest free trial | Not listed | Not listed |
| Plans listed | 1 | Not published |
Listing
| Measure | UnumPay | Unzer Checkout Booster |
|---|---|---|
| Shopify category rank | #4(ahead) | #36 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Jan 7, 2021 | May 26, 2026 |
| Languages | 1 | 1 |
| Developer | Devsinc | Unzer Group GmbH |
FAQ
UnumPay and Unzer Checkout Booster: common questions
- 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. Unzer Checkout Booster lists 5 the others don’t mention, such as Payment messages, Widget color, Widget design, Widget placement. 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 22, 2026 for UnumPay, Jun 1, 2026 for Unzer Checkout Booster; 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 22, 2026 for UnumPay, Jun 1, 2026 for Unzer Checkout Booster. 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.