Flat Invoice vs OrdoGrid
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Flat Invoice compared with OrdoGrid
| Detail | FI
Flat Invoice | 
OrdoGrid |
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| What it does | Send the invoice. Skip the chasing.
| Belgian invoicing software with a free forever plan for Peppol sending and receiving
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| Stage | Not given
| Not given
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| Founded | Not given
| 2022
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| Based in | US
| BE
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| Pricing model | Freemium
| Freemium
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| Pricing | 3 invoices per month free, then $2 per invoice. Pro plan: $9 per month or $79 per year for unlimited invoices. Edits, resends and reminders are free.
| Free: unlimited Peppol receiving, 1 outgoing invoice per month, no card required. Starter: €9 per month excluding VAT, 14-day trial. Business: €59 per month excluding VAT (includes 1 location; additional locations €50 per month excluding VAT), 14-day trial.
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| Key features | - Automatic payment reminders on day 3, 7 and 14
- Late fee calculator with interest calculation
- Ready-to-send reminder email templates
- Direct client payments
- Optional Stripe integration for card and bank payments
- Free edits and resends
- Free late fee calculator tool
- Unlimited invoice drafts on free plan
| - Unlimited Peppol receiving and sending (Starter and Business plans)
- Quote to invoice conversion in one click
- Email sending with read receipts
- VAT lookup via official registers
- Stripe payment links on invoices (Business)
- AI-powered invoice import from PDFs
- Calendar synchronisation with Google, Outlook and Apple Calendar (Business)
- REST API access (Business)
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| What makes it different | - Never touches client payments or takes a percentage
- Automatic reminders reduce payment chasing
- Free late fee calculator included with service
- Simple pricing with no setup fees
| - Free forever with no card required and no time limit
- Built specifically for Belgian VAT and Peppol compliance
- Structured invoices compliant with EN 16931 through a certified access point
- Unified platform combining quotes, invoices, projects and payment tracking
- Delivery tracking and acceptance acknowledgements for all invoices
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | 1 ● no change since last check |
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| Trust Flow (Majestic) | 0 | 9 |
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| Citation Flow (Majestic) | 12 | 18 |
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| Referring domains (Majestic) | 3 | 9 |
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6 details filled in for both companies.
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