FreshBooks is a full-stack accounting suite — invoicing, expenses, time tracking, payroll, the works. Influx Theory is invoicing done extremely well, without the accounting platform around it. Which one is right for you depends on whether you already have a bookkeeper.
If you want one app to replace your accountant, pick FreshBooks. If you want invoicing that takes 2 minutes to learn and sends in 30 seconds, pick Influx Theory.
| Feature | Influx Theory | FreshBooks |
|---|---|---|
| Send an invoice | 30 seconds | 3–5 minutes (more fields) |
| Recurring invoices | Included | Included |
| Accept card payments | Stripe (2.9% + 30¢) | FreshBooks Payments (2.9% + 30¢) |
| Expense tracking | Not included | Included |
| Time tracking | Not included | Included |
| Payroll | Not included | Add-on |
| Starting price | $19/mo unlimited | $21/mo (limited to 5 clients) |
| Hidden client limits | None | Yes — upgrade for more clients |
Freelancers, agencies, and trades who already have a bookkeeper or use QuickBooks/Xero for accounting.
Solo owners who want invoicing + bookkeeping + expenses in a single subscription.
No credit card required. $19/mo after, unlimited everything.
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