InvoiceFlow ‑ EU Invoice PDF vs ZUGFeRD Invoice
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026.
The short answer
- Only InvoiceFlow lists a free plan. Paid plans start at $15/month for InvoiceFlow and $15/month for ZUGFeRD Invoice.
- InvoiceFlow lists 1 features ZUGFeRD Invoice’s listing doesn’t mention, including Multi-language.
Head to head
Free
- · 10 invoices per month
- · Factur-X / ZUGFeRD e-invoice XML
Pro
- · Invoices in English, German, French
- · Unlimited invoices
Starter
Growth
Unlimited
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureInvoiceFlow generates a legally compliant PDF invoice for every order — automatically, seconds after it is placed. Built for small EU stores that need proper VAT invoices: • EU VAT: net/tax breakdown per rate, tax-inclusive prices, automatic reverse-charge handling for cross-border B2B orders (Art.
Germany requires all businesses to receive e-invoices; issuing becomes mandatory 2027-2028, France follows 2026. A plain PDF no longer counts. This app turns any order into a validated EN 16931 e-invoice: a readable PDF/A-3 with the legally required XML embedded. Enter your seller details once, click "ZUGFeRD PDF" on any order, send it. Validated with the industry-standard Mustang engine before delivery.
- Automatic PDF invoice for every new order
- Embedded Factur-X / ZUGFeRD e-invoice XML (EN 16931)
- EU VAT breakdown incl. cross-border B2B handling (Art. 196)
- Gapless legal invoice numbering with custom prefix
- One-click ZUGFeRD/Factur-X PDF for any order
- Validated against EN 16931 business rules before download
- Correct VAT math for tax-inclusive and tax-exclusive stores
- GDPR-friendly: order data processed transiently, never stored
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 |  InvoiceFlow |  ZUGFeRD Invoice |
|---|---|---|
| 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 | InvoiceFlow | ZUGFeRD Invoice |
|---|---|---|
| App Store rating | Not published | Not published |
| App Store reviews | Not published | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | InvoiceFlow | ZUGFeRD Invoice |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $15/month | $15/month |
| Longest free trial | 7 days | 14 days |
| Plans listed | 2 | 3 |
Listing
| Measure | InvoiceFlow | ZUGFeRD Invoice |
|---|---|---|
| Shopify category rank | #379(ahead) | #506 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Jul 24, 2026 | Jul 27, 2026 |
| Languages | 1 | 1 |
| Developer | Muster Handel GmbH | RENDUN LIMITED |
FAQ
InvoiceFlow and ZUGFeRD Invoice: common questions
- Is InvoiceFlow or ZUGFeRD Invoice cheaper?
- Only InvoiceFlow lists a free plan. Paid plans start at $15/month for InvoiceFlow and $15/month for ZUGFeRD Invoice. 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?
- InvoiceFlow lists 1 the others don’t mention, such as Multi-language. 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; 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. 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.