Comparison Updated October 2026

PraxiOS vs Karbon

Karbon suits firms that run their work from email and rely on integrations, priced per user. PraxiOS suits firms that want flat per-firm pricing, every feature on every plan, and a link-based client portal for collecting documents.

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Yearly cost for a 5-person firm on published list prices, paid annually: PraxiOS Starter $2,990, Karbon Team $3,540 and Karbon Business $5,340.

At a glance

How do PraxiOS and Karbon compare?

Karbon details are taken from its public pricing and integrations pages. Where Karbon doesn't publish something, we say so.

PraxiOS compared with Karbon, Karbon details checked on October 26, 2026
Feature	PraxiOS	Karbon
Pricing model	Per firm, flat monthly price by team size; every feature on every plan	Per user per month; Team, Business and Enterprise tiers with different features
Starting price	$299/mo for up to 5 users ($2,990/yr if paid annually)	$59/user/mo paid annually, or $79/user/mo paid monthly (monthly billing for teams of 4+)
Client portal	Yes — secure expiring links, no client account or password	Yes — tasks and document sharing with clients
Document collection / auto-matching	Yes — OCR reads each upload, identifies the document type and links it to the matching checklist item	Yes, document requests and sharing; automatic matching to a checklist not stated on its pricing page
Work management	Yes — work board, templates, to-dos, comments; fixed set of five stages	Yes — workflow, to-dos and templates with configurable statuses (limits vary by plan)
Recurring work	Yes — generated automatically from templates	Yes — plus task automation on Business
Time & billing	Partial — invoices, budgets and payment recording (no card processing, no time-entry screen yet)	Yes — time tracking, budgets, billing and payments
E-signatures	No	Yes — sold as eSignature credit bundles
Email integration	No — sends reminder emails, but no inbox integration	Yes — integrated email and email triage
Integrations / API	No	Yes — e.g. QuickBooks Online Accountant, Xero, Microsoft 365, Gmail, Zapier; Karbon API
Mobile app	No native app; the client portal works in a phone browser	Yes — iOS and Android

PraxiOS

Where PraxiOS is stronger

Flat per-firm pricing: up to 5 users for $299/mo, up to 15 for $699/mo. Adding a person inside your plan doesn't change the bill.
Every feature is on every plan, with unlimited clients. There's no feature tier to upgrade into.
Clients don't create an account. You send a link that expires in 1–30 days, can be single-use, and can be rotated or revoked.
Uploads are read with OCR, classified by document type and linked to the matching checklist item automatically, so staff spend less time sorting files.
Per-client checklists appear in the client's portal next to outstanding document requests.

Karbon

Where Karbon is stronger

Email is part of the workflow: integrated email and email triage. PraxiOS has no inbox integration.
A broad integration list, including QuickBooks Online Accountant, Xero and Microsoft 365, plus an API. PraxiOS has neither.
E-signatures and engagements (proposals and engagement letters). PraxiOS has neither.
Billing and payments built in, where PraxiOS records payments but doesn't process them.
Native iOS and Android apps, configurable workflow statuses, and tiered help with data import.
For very small teams, per-user pricing can cost less than a flat firm price.

Who should choose which

Choose PraxiOS if

You want simple, flat pricing and faster document collection.

You're a 1–50 person firm whose main pain is chasing and sorting client documents, you don't need e-signatures or integrations today, and you'd rather pay one predictable price for every feature.

Choose Karbon if

Your work runs through email and connected tools.

You want inbox triage inside your workflow, need QuickBooks, Xero or Microsoft 365 integrations or an API, rely on e-signatures and engagement letters, or want native mobile apps.

Cost example

What would a 5- or 12-person firm pay?

Published list prices only, per year, before taxes. Karbon's eSignature credits and Enterprise plan are priced separately and not included.

Yearly cost of PraxiOS, Karbon Team and Karbon Business for a 5- and 12-person firm, paid annually or monthly
Firm size	PraxiOS	Karbon Team	Karbon Business
5-person firm	$2,990/yr annualStarter, 10 × $299$3,588/yr monthly12 × $299	$3,540/yr annual5 × $59 × 12$4,740/yr monthly5 × $79 × 12	$5,340/yr annual5 × $89 × 12$5,940/yr monthly5 × $99 × 12
12-person firm	$6,990/yr annualProfessional, 10 × $699$8,388/yr monthly12 × $699	$8,496/yr annual12 × $59 × 12$11,376/yr monthly12 × $79 × 12	$12,816/yr annual12 × $89 × 12$14,256/yr monthly12 × $99 × 12

PraxiOS prices are per firm, so a 3-person firm on Starter pays the same as a 5-person one. At 3 users, Karbon Team paid annually (3 × $59 × 12 = $2,124/yr) costs less than PraxiOS Starter. The prices compare plans, not identical feature sets — see the table above.

FAQ

Common questions

Can I move from Karbon to PraxiOS?+

Yes. PraxiOS imports your client list from a Karbon CSV export, with the column mapping built in, and work in progress is set up by hand. The Enterprise plan includes help importing your client list, and the Professional plan includes a live onboarding session. On Starter, setup is self-serve with email support.

Does PraxiOS connect to my email like Karbon does?+

No. PraxiOS sends reminder emails to your staff in the background, but it doesn't connect to your team's inbox. If email triage is central to how you work, Karbon covers that and PraxiOS doesn't.

Does PraxiOS have e-signatures or integrations?+

Not today. PraxiOS has no e-signatures, no QuickBooks or other integrations, and no public API. A public API is on our roadmap but isn't available yet.

Do my clients need a login?+

No. Each client gets a secure link that you set to expire in 1 to 30 days, optionally single-use. You can rotate or revoke it from the client's page at any time.

Sources

Competitor details checked on October 26, 2026 from their public websites; pricing and features change — check Karbon for current details.

karbonhq.com/pricing — plans, prices, billing terms, included features
karbonhq.com/integrations — integrations and API

Karbon is a trademark of its owner. All trademarks belong to their respective owners; DomoDomu is not affiliated with or endorsed by Karbon. This page compares published information and isn't an assessment of either company.

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