Checkout Plus 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 Nov 9, 2026 for Checkout Plus, Jun 1, 2026 for Unzer Checkout Booster.
The short answer
- Only Checkout Plus lists a free plan.
- Checkout Plus lists 16 features Unzer Checkout Booster’s listing doesn’t mention, including Announcement bar, Checkout upsell, Conversion rates.
Head to head
- United States
- United Kingdom
- Australia
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Staging & Dev
- · Contact us to use
- · For Development and Staging stores
Basic
- · 7-Day Free Trial
- · Auto Add Product or Gift at Cart Page
- · Cart & Checkout Links
- · Order Status Page Customizations
- · Order Validations, Limits & Rules
- · Payment & Shipping Customizations
Plus
- · 7-Day Free Trial
- · Basic Plan Features
- · Cart & Checkout Links
- · Checkout Customizations
- · Limited To Shopify Plus Plans
- · Order Status Page Customizations
Advanced
- · 7-Day Free Trial
- · Auto Add Product or Gift At Checkout
- · Cart & Checkout Links
- · Checkout Branding
- · Checkout Upsells
- · Limited To Shopify Plus Plans
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureUnlock the ability to customize your Checkout, Thank You, and Order Status pages. Communicate vital information to your customers during checkout such as custom messages, and reviews at checkout. Establish trust with your customers by giving them confidence when they checkout it is secure and trustworthy.
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.
- Sell more at checkout increasing average order value (AOV) by offering Upsells
- Establish trust with your customers by showing trust badges and custom messages
- Provide customers the ability to add gift messages & delivery instructions
- Customize your thank you page with social media share and custom messages
- 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 |  Checkout Plus |  Unzer Checkout Booster |
|---|---|---|
| Detected stores | 1,243 | Not published |
| Net store change, 28 days | +22 | 0 |
| Stores added, 28 days | 22 | Not enough data |
| Big-brand share | 34% | Not enough data |
| Top store categories | Apparel & Accessories, Health & Beauty, Home & Garden | Not published |
| Top store countries | United States, United Kingdom, Australia | Not published |
Reviews
| Measure | Checkout Plus | Unzer Checkout Booster |
|---|---|---|
| App Store rating | 5.0 ★ | Not published |
| App Store reviews | 130 | Not published |
| New reviews, 28 days | 11 | Not enough data |
| Reviewers a year or more in | 13% | Not enough data |
Pricing
| Measure | Checkout Plus | Unzer Checkout Booster |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $19/month | No monthly plan listed |
| Longest free trial | 7 days | Not listed |
| Plans listed | 4 | Not published |
Listing
| Measure | Checkout Plus | Unzer Checkout Booster |
|---|---|---|
| Shopify category rank | #7 | #36 |
| Shopify App Charts | #2 in Checkout - Other | Not on this week’s charts |
| Built for Shopify | Yes | No |
| Launched | Sep 26, 2022 | May 26, 2026 |
| Languages | 1 | 1 |
| Developer | Plus Apps | Unzer Group GmbH |
FAQ
Checkout Plus and Unzer Checkout Booster: common questions
- Is Checkout Plus or Unzer Checkout Booster cheaper?
- Only Checkout Plus 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.
- What features does each app list that the other doesn’t?
- Checkout Plus lists 16 the others don’t mention, such as Announcement bar, Checkout upsell, Conversion rates, Custom rules. 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 Nov 9, 2026 for Checkout Plus, 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 Nov 9, 2026 for Checkout Plus, 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.