CosmoLex vs Rocket Matter: Which Fits Your Firm in 2027

Short answer: pick on billing model and accounting setup

Legal practice management software keeps matters, time entries, invoices and client trust ledgers in one system, so billing and accounting run from the same records. CosmoLex and Rocket Matter both sell that category to small law firms, and the choice between them comes down to how each one bills, how it connects to your bookkeeping, and what the add-ons you need will cost. The two products are not independent companies. LawNext reported on June 24, 2025 that ProfitSolv owns CosmoLex, Orion, Rocket Matter and Tabs3, according to LawNext (2025). Shared ownership does not mean the products are converging, so ask each vendor which roadmap your features will follow.

Here is the short answer. Pick CosmoLex if AI-assisted intake and document features, plus an open API listed on its feature table, matter more to you than a fixed price ladder with printed add-ons. Pick Rocket Matter if you want a published four-tier price list, printed CRM and website prices, and a QuickBooks Online integration that its pricing page says is unavailable only on the Elite tier when built-in accounting is in use. Do not decide on the headline entry price alone. Entry plan price: $49 per user per month according to CosmoLex (2026), with its Core plan at $99 and its Pro plan at $129 on the same page, and yearly billing described as saving $120 per user. Rocket Matter's entry plan is quoted only on annual billing, and CosmoLex does not print its yearly rate, so the two entry prices are not like-for-like.

The category decision comes before the brand decision. If you need a case management and trust accounting system, both products qualify, and the rest of this guide is about which one fits your billing and accounting path. If you mainly need a workflow layer that connects several tools, neither product replaces it, and the section on handoffs explains why.

Key Takeaways

• Both products are owned by ProfitSolv, so treat this as a choice between two product lines under one parent rather than two unrelated vendors.

• The entry prices are not like-for-like: CosmoLex does not print its yearly rate, and Rocket Matter's plan prices are billed annually.

• Rocket Matter prints prices for its CRM and website add-ons, while CosmoLex describes its growth add-ons as quote-based.

• QuickBooks Online is a deal point for Rocket Matter's Elite tier, which its pricing page says loses that integration when built-in accounting is turned on.

• CosmoLex's feature table lists AI document summaries, AI filters and an AI intake form builder. The Rocket Matter pages we read do not list AI features.

• Neither product's public pages confirmed the full scope of its API or connector, so get written confirmation of API or Zapier access before you sign.

How we evaluated these tools

This is an informed buyer's guide built from public vendor pages and independent sources. We did not run either product in a trial, so every claim below points to a page we opened or is marked as unconfirmed. We weighted the criteria toward the decisions a small firm usually has to get right first. Billing errors and trust accounting mistakes cost more to fix than a missing dashboard, so they carry the most weight.

The weights total 100%. A higher weight means the criterion is more likely to change which product a firm should buy, not that one vendor scores higher on it.

Who this is for

Choose CosmoLex if you want AI-assisted intake and document summaries, you are comfortable working from a monthly-or-yearly toggle with no printed yearly rate, and you can get add-on prices in writing before you commit. Choose Rocket Matter if you want a printed four-tier price ladder, printed CRM and website prices, and a Zapier connector to other tools, and your accounting will stay on QuickBooks Online outside the Elite tier.

Red flags: you need QuickBooks Online sync on Rocket Matter's Elite tier while built-in accounting is turned on; you need a documented API or connector on CosmoLex before you sign; or you need a total cost that includes CosmoLex's growth add-ons before the vendor has quoted them.

Feature matrix: what each vendor page lists

The matrix uses the row labels on each vendor's public pricing page. Where a page does not show which plan includes a feature, we say so instead of assigning the feature to a tier.

The figures in this table are the vendor figures cited in the sections that follow. A "Listed" entry means we found the item on the vendor's page, not that it is confirmed for a given tier. "Not listed" means we did not find it on the page we read, which is not proof that the product lacks it. Confirm every row against the contract before you buy. For a broader view of how matter budgets fit into this kind of decision, see law firm matter budget automation comparison.

Pricing and total cost of ownership

Pricing checked October 19, 2026. Both vendors publish their plan prices on their own pricing pages, and aggregator sites show older or different figures, which we did not use.

CosmoLex's pricing page shows its price cards as per-user monthly rates and offers a free trial with no credit card needed. The page does not say which billing toggle is selected by default, and it does not print a yearly rate, so the comparison below uses the displayed monthly rates.

Rocket Matter's pricing page is different. It lists plans as billed annually, and it includes an FAQ line that gives a starting figure that does not match its own Essentials card, so confirm that number in writing. Essentials plan price: $59 per user per month according to Rocket Matter (2026), with Pro at $95, Premier at $115 and Elite at $145 on the same page. The same page lists 5 e-signatures per user per month and 25GB of document storage on Essentials, and 15 e-signatures per user per month on the higher tiers.

Every price in the table below is one of the figures cited above. The five-user totals are arithmetic (price × 5 users × 12 months), not vendor quotes.

Add-ons change the total more than the plan line does. Rocket Matter's CRM add-on is priced per user, with CRM Core at $39 per user per month billed annually or $49 billed monthly, and it is available only with its Pro and Premier tiers. Rocket Matter's Enterprise CRM is $147 per month billed annually for up to three users, or $177 billed monthly. Both CRM tiers carry a one-time $399 onboarding fee, website hosting is $149 per month on each tier with a one-time $599 setup, and e-signature overage is $2 per envelope, on the same page. CosmoLex's growth add-ons (CRM, websites, Google Ads and LexShare/LexSign) are quote-based on its pricing page, and no onboarding fee is printed, so the add-on side of that comparison cannot be finished from public numbers.

Here is a hypothetical five-user firm that wants Rocket Matter's Pro plan and the CRM Core add-on for intake, using the prices above. Pro at $95 per user per month for five users over twelve months is $5,700. CRM Core at $39 per user per month, billed annually, adds $2,340 over the same period, and the one-time $399 CRM onboarding fee brings the first-year total to $8,439. Zapier's listing for Rocket Matter names a new_invoice_payment event, so a payment-matching flow would need that field confirmed on the plan the firm buys. The same five users on CosmoLex's Core plan would come to $5,940 over twelve months at the displayed rate, but CosmoLex does not publish its add-on prices, so that comparison stops at the plan line.

For a pricing-first breakdown that also covers Rocket Matter's CRM and website costs, read Rocket Matter vs Clio pricing breakdown.

CosmoLex and Rocket Matter profiles

CosmoLex: best fit and limits

CosmoLex fits firms that want AI document summaries, an AI intake form builder and an open API listed on the feature table, and that will accept per-user monthly pricing without a printed yearly rate. Its pricing page lists three plans and a free trial with no credit card needed, which makes it easy to test the setup before you pay.

The limits are in the details. The pricing page does not show which plan includes each feature, so ask for the plan-by-plan inclusion list before you compare totals. Its growth add-ons are quote-based, and we could not open developer documentation that confirmed what the open API can read or write. Implementation is described as onboarding with a dedicated success rep for qualifying accounts, but the page prints no onboarding fee, so ask for it in writing. Evidence: CosmoLex pricing page. CosmoLex is a harder choice if you need printed add-on prices before you sign.

Rocket Matter: best fit and limits

Rocket Matter fits firms that want a printed tier ladder, printed add-on prices, and a connector to other tools through Zapier, while keeping QuickBooks Online on a tier other than Elite. Its CRM and website prices are on the same page as its plans, which makes the total easier to model than CosmoLex's.

The limits are equally specific. The Elite tier loses the QuickBooks Online integration when built-in accounting is in use. Its FAQ starting figure conflicts with its plan card. The pages we read do not list AI features. Zapier's listing for Rocket Matter shows nine events and seven functions, according to Zapier (2026), and the listing does not say whether the Zapier app is official. Rocket Matter's ownership history is also worth knowing. LawNext reported on September 24, 2020 that a company formed by Lightyear Capital LLC acquired Rocket Matter, and that founder and CEO Larry Port would remain with the company, according to LawNext (2020). Evidence: Rocket Matter pricing page. Rocket Matter is a harder choice if you need AI intake features on the pages you read, or if you plan to run Elite with built-in accounting and still need QuickBooks Online.

Intake and payment handoffs where the work piles up

The first handoff that causes trouble is intake. A prospective client fills in a form, someone decides whether to open a matter, and conflict clearance has to happen before any work starts. In a proposed design, US Tech Automations would start from the new-matter event that Zapier lists for Rocket Matter as new_matter, create a draft intake task for the responsible attorney with the form fields attached, and add a summary row to the team's tracker. The output is a task, not an opened matter. The prerequisites are Zapier or API access on the plan you choose, a field mapping that someone signs off on, and a named reviewer who clears conflicts before the matter goes active. The human review point is the conflict check, and no matter status changes without a person approving it.

The second handoff is payments. A client payment can land in a trust account or an operating account, and the bookkeeper must confirm which one before anything posts. In that setup, US Tech Automations would start from a new invoice payment, which Zapier's Rocket Matter listing names as new_invoice_payment, match the payment to the invoice and matter, write a row to a daily exception list, and leave any payment with no match for review. The output is a reconciliation worksheet for the bookkeeper, not a transfer of funds. The prerequisites are export or API rights for payment records, a QuickBooks Online mapping if your books live there, and written confirmation of which account each payment type lands in. Trust disbursements stay manual, and nothing moves between trust and operating accounts without a person approving it.

Zapier, Make or n8n can build the same handoffs without a vendor layer. When configured, those tools can keep run histories, retries and error branches, and they can produce audit evidence. The buyer still has to design and own observability, idempotency (so a retried payment is not posted twice), escalation paths, access controls, and maintenance every time the practice system changes. A proposed US Tech Automations configuration would set those parts up at the start, with run logs, retry limits and an escalation route to a named staff member. It still depends on the same API or export prerequisites and the same review points, so the choice is about who maintains the flow, not about whether the flow can run.

When a simpler setup wins

US Tech Automations is not the right first step for every firm. If your firm only needs time, billing and trust in one product, and intake runs by hand at a volume your team can handle, the native features of either product may cover the work, and a workflow layer adds cost without removing much effort. If no one on staff will own a flow after go-live, a silent failure will cost more than manual entry, so do not add the layer yet. If your only integration need is QuickBooks Online sync on a plan where the vendor already supports it, the built-in integration is the simpler path.

Glossary

• Client trust account: a bank account that holds client funds separately from firm money, and where trust ledgers must reconcile.

• Retainer: money a client pays in advance, held and drawn down against invoices.

• Split billing: one invoice divided between two payers or two matters.

• LEDES: a billing data format that many corporate clients require for e-billing submissions.

• Matter: the case or engagement that time, expenses and invoices attach to.

• E-signature envelope: a document package sent for signature. Rocket Matter's overage is priced per envelope.

• SOC 2 Type II: an independent auditor's report on a vendor's controls over a period of time. It is an audit report, not a certification.

• Open API: a documented interface for reading or writing records. Check the documentation for what it covers before you rely on it.

Decision checklist before you sign

• Ask each vendor to confirm in writing which plan includes QuickBooks Online sync, trust reconciliation and e-signature allowances.

• Put both entry prices on the same billing basis before you compare them.

• Get a written quote for every add-on you would actually buy, including CosmoLex's growth add-ons.

• Confirm API or Zapier access, including whether it is included in your plan or sold separately.

• Ask your bookkeeper to reconcile a sample trust and operating account in the product you are considering.

• Name the person who owns intake, conflict clearance and any automation after go-live.

For a step-by-step process that starts from your billing needs, read steps to choose legal accounting software.

Questions buyers ask before signing

Is CosmoLex the same company as Rocket Matter?

No. Both products are owned by ProfitSolv, but each has its own pricing page, feature list and plan structure, so compare them separately.

Which product is cheaper for a small firm?

Neither wins for every firm, so compare the five-user totals in the pricing table against the add-ons you would actually buy.

Does Rocket Matter integrate with QuickBooks Online?

Yes, its pricing page lists a QuickBooks Online integration, but the page says that integration is not available on the Elite tier when built-in business accounting is in use.

Does CosmoLex offer an open API?

Its pricing page lists an open API, but the developer documentation we could open did not confirm the scope, so request the documentation and any plan limits in writing before you rely on it.

Can either product replace a workflow tool?

Not fully. Each product has its own connectors or API surface, and a handoff still needs an owner, retry rules and a person to review exceptions.

Next step before you sign

Start with the billing basis and the accounting path, and get add-on quotes in writing before you compare totals. If intake and payment handoffs are where your team loses time, see how US Tech Automations configures this for a specific practice system, after the prerequisites above are confirmed, at see how US Tech Automations configures this.