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Ignition (formerly Practice Ignition) automates proposals, engagement letters, billing and payments for accounting and professional services firms. Here's how it compares with OneFirmOS.
Side by side
| Ignition | OneFirmOS | |
|---|---|---|
| Focus | Proposals, engagement letters and payments | Full practice management, with proposals included as an add-on |
| Workflow, time, documents | Not listed in its product navigation | Included |
| Data hosting | Servers in the United States | Canada (AWS Montreal); US clients' documents in the US |
| QuickBooks Online | Integrations listed | Invoices, payments, credit notes, retainers and WIP sync into the firm's QuickBooks Online |
Ignition information is from www.ignitionapp.com, checked on 7 November 2026. Products change; tell us at support@onefirmos.com if anything is out of date.
Overlap
Both Ignition and OneFirmOS offer: Proposals, engagement letters, invoicing, payments and WIP billing.
OneFirmOS adds its own bookkeeping ledger and cash coding, e-signatures with a tamper-evident audit trail and no per-envelope fees, multi-office and multi-currency billing, and HR and desk booking, all hosted in Canada.
FAQ
For firms that want one system covering workflow, time, billing, the client portal, documents, e-signatures and bookkeeping, hosted in Canada, yes.
OneFirmOS includes its own bookkeeping ledger and cash coding, QuickBooks Online sync, e-signatures with a tamper-evident audit trail and no per-envelope fees, multi-office and multi-currency billing, and is hosted in Canada.
Yes. Onboarding is assisted: we import your clients, contacts and documents, rebuild your workflows and train your team.
One platform
A 30-minute walkthrough on your firm's real workflow. First month free.