InvoiceFlow compared
Different tools solve different problems. Here is an honest side-by-side so you can pick the right one.
At a glance
| InvoiceFlow | Card-based invoicing apps | Accounting suites | Spreadsheets & Word templates | |
|---|---|---|---|---|
| Main purpose | Create and email invoices, by hand or API | Invoices your clients can pay by card | Bookkeeping, tax, payroll, reporting | Occasional, manual invoices |
| Branded PDF invoice by email | ✓ | ✓ (typically) | ✓ | Manual: export and attach yourself |
| REST API with your own keys | ✓ on every plan | Varies by product and plan | Often on higher tiers | ✗ |
| Clients can pay on the invoice | ✗ not included | ✓ (typically) | ✓ (often) | ✗ |
| How you pay for the service | Crypto only: BTC or USDT (TRC-20) | Card or bank | Card or bank | Free (your time) |
| Chargebacks on your subscription | None: crypto payments are final | Possible | Possible | n/a |
| Free trial | 7 days, 100 invoices a day, no card | Common | Common | n/a |
| Sending limits visible in the API | ✓ (response headers) | Varies | Varies | n/a |
| Bookkeeping & financial reports | ✗ | Limited | ✓ | Manual |
| Expense tracking | ✗ | Some | ✓ | Manual |
| Payroll / timesheets | ✗ | Some | Some | ✗ |
| Bulk invoice sending from a CSV file | ✓ | Varies | Some | Manual |
| e-signature | ✓ (simple, included in every plan) | Some | Some | Separate tool |
| AI assistant (support chat, drafts invoices) | ✓ | Some | Some | ✗ |
The other columns describe general categories of tool, not specific companies. Features and prices change, so always check a provider's current pricing page before deciding.
InvoiceFlow pricing
| Plan | Price | Sends (invoices + e-sign requests) | API keys | API requests / min | AI messages / day |
|---|---|---|---|---|---|
| Free trial (7 days) | $0 | 100 per day | 1 | 60 | 30 |
| Starter | $10 / month | 500 per day | 3 | 60 | 100 |
| Growth | $25 / month | 2,000 per day | 10 | 300 | 300 |
| Business | $50 / month | 10,000 per day | 50 | 1,000 | 1,000 |
Yearly billing charges 10 months for 12. No per-invoice fees and no transaction fees, because we don't process your clients' payments.
The honest trade-offs of crypto-only billing
The good
- No card, no billing address, no chargebacks
- Works from anywhere with a wallet
- Payment confirmed on a public blockchain you can verify
- Plan activates automatically
The catch
- You need a crypto wallet or exchange account
- Payments are irreversible. Send the exact amount, on the right network, within the time window
- Network fees are paid by the sender
- Not a fit if your company can only pay by card or invoice
Who should choose what
Choose InvoiceFlow if…
- You want to send invoices from your own app or script
- You prefer simple, predictable limits and prices
- You are comfortable paying in crypto
- You collect payment from clients outside the invoice
Choose a card-based app if…
- Your clients want a "pay now" button on the invoice
- You want card payments settled into your bank account
Choose an accounting suite if…
- You need bookkeeping, tax reports, expenses or payroll in one place
Stick with a spreadsheet if…
- You send a handful of invoices a year
You can also use InvoiceFlow alongside an accounting suite: let it create and email invoices through the API while your accountant keeps the books elsewhere.