Both Pepper and FusionInvoice run on your own server. FusionInvoice offers a client centre and payment-gateway connections; Pepper connects fixed-price projects, team boards and billing records. If customers must pay online or receive invoices through an e-invoicing network, that difference matters before price.
FusionInvoice lists recurring invoices, a client centre, and PayPal, Stripe, Square and Mollie integrations. Its store also offers a separate e-invoicing add-on for supported networks, including Peppol. Sources checked 13 October 2026: FusionInvoice’s features and store and add-on terms.
Compare how customers receive and pay invoices
| Requirement | Pepper | FusionInvoice |
|---|---|---|
| Customer payment | Record money received elsewhere; bank details and eligible EUR QR codes | Payment-gateway integrations; provider terms and fees apply |
| Customer access | Invoice delivery by email; no customer login portal | Client centre for invoices and quotes |
| E-invoicing | Local UBL XML download for supported documents; no network delivery | Separate e-invoicing add-on with supported network delivery |
FusionInvoice’s e-invoicing add-on requires annual renewal, the latest application version and usage credits. Confirm the destination country and network with the provider before buying. Pepper’s UBL export limits explain what its downloaded file covers.
Where Pepper fits
Pepper can turn approved fixed-price milestones into invoice drafts, link work cards to business records and export supplier invoices and receipts for an accountant. It includes recurring invoices and has no bookkeeping ledger. Stripe invoice payments collect against staff-issued invoices, with partial payments and confirmed credit-note refunds.
Consider FusionInvoice when its customer portal, gateways or e-invoicing add-on meet a requirement. Consider Pepper when connected client work and billing records matter and you handle payment and bookkeeping elsewhere.
Compare the complete purchase
Pepper costs $199 for one production installation, full source, a perpetual licence, and one year of updates and support. Updates and support renew automatically at $199/year unless you cancel. Cancel anytime to stop future charges; your downloaded copy keeps working after the paid period ends. Hosting, email and maintenance are separate costs. Licence and support terms.
FusionInvoice’s base purchase includes a self-hosted licence and one year of updates. Include any required add-ons and their renewal or usage charges when comparing costs. Custom changes in Pepper need a managed update process because its updater refuses modified files.
Pepper has no FusionInvoice migration tool. Follow a worked milestone invoice to assess its workflow, then test in a separate installation before moving live records. The public demo is read-only.