Comparison

CosmoLex vs Rocket Matter

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CosmoLex

This cloud-based legal practice management software provides a comprehensive suite of tools for law offices. It offers case management, timekeeping, billing, bookkeeping, and client communication features, all accessible from any device.

Highlights
  • Case information management
  • Timekeeping and billing
  • Business and trust accounting
  • Calendar and task management
  • Document management
  • Secure client portal
  • Email integration
Features
Read full description

CosmoLex – Cloud Based Legal Practice Management Software YOUR ENTIRE LAW OFFICE ACCESSIBLE FROM ANYWHERE AT ANYTIME You are constantly on the go...and CosmoLex goes with you. CosmoLex puts everything you need at your fingertips – case information, calendar, emails, tasks, timekeeping, billing, bookkeeping, trust accounting, and more. CosmoLex cloud based practice management software brings the resources of your entire office with you to the courthouse, to client meetings, on an airplane, at a coffee shop, and to your home. It’s amazing how much out-of-the-office “downtime” suddenly becomes productive – all thanks to CosmoLex. ALL THE TOOLS YOU NEED – FOR ONE PRICE – IN ONE LOGIN CosmoLex is built for one purpose only – to simplify legal practice management and it’s now even easier with our redesigned mobile app. CosmoLex law office management software takes care of Timekeeping, Business Accounting, Trust (IOLTA) Accounting, Email, Calendar & Task, Document Management, and provides a Secure Client Portal – all in one cloud based system that is accessible from anywhere. Whether you’re a solo attorney or small law firm, CosmoLex helps you run an efficient and compliant practice. AUTOMATED LEGAL BILLING SOFTWARE CosmoLex captures all time and every expense in the moment – nothing slips through the cracks. Your bills go out on time with a single click, and you reap the rewards of better cash flow – higher profits. SMART LEGAL CALENDAR & TASK MANAGER You might wonder what could make CosmoLex legal calendar software for law firms any better than one of the free third-party calendars. The answer is simple — Legal Calendar Software by CosmoLex can leverage its tight integration with the legal practice management & billing system to give you a smart calendar & task manager — that does a lot more than you’re used to. STREAMLINE CLIENT COMMUNICATION Most client disputes occur when clients claim that they were not informed about critical matter aspects — especially if you can’t document when, how and who at your firm addressed these disputed details with your client. The CosmoLex Client Portal puts an end to such disputes, by keeping your clients in the loop like never before, giving them access (that you control) to any or all case information. There is no cost to you or your clients, and you can revoke access to any item or the entire portal at any time. LAW OFFICE ACCOUNTING CosmoLex has built-in accounting - right alongside practice management and billing where it belongs. You can handle all of your business accounting and trust (IOLTA) accounting within CosmoLex, eliminating any need for third-party accounting software (such as QuickBooks™). Built-in accounting with automatic bank data feed not only saves time; it eliminates the common sources of error that come with keeping your books on a separate system. AND MUCH MORE! Note: CosmoLex user account is required.

About

Rocket Matter

Manage your entire law practice from your mobile device. Access client data, track time and expenses, communicate securely, and manage your calendar and tasks on the go. All your firm's critical information is securely backed up and accessible anywhere.

Highlights
  • Secure firm communication
  • Financial information access
  • Document previews
  • Calendar, contacts, and tasks management
  • Time tracking and billing
  • Document and picture uploads
  • Push notifications
Features
Read full description

Introducing the new Rocket Matter app, completely revamped from the ground up! Our completely redesigned app puts your entire law practice in the palm of your hand, allowing you to manage your firm from anywhere.  Now you can access much more of Rocket Matter through our native app than before. The Rocket Matter app offers much more than tracking time on the go: it now provides secure firm communication, financial information, document previews, and other critical things busy attorneys need while they’re out and about. Of course, we still have the fundamentals you’re used to: our calendar, contacts, tasks, matter summaries, and timers are all easily accessible. And as the leading, trusted cloud option for law firms, all of your data is backed up, secure and accessible wherever you go. Trusted by thousands of firms worldwide, Rocket Matter makes the lives of lawyers a whole lot easier. Key Features: - Use Touch ID setup for easy login. - Access important client data on-the-go, including trust accounting and matter billing. - Add, edit, and view contacts, matters, calendar events, and tasks, anytime from anywhere. - Initiate calls and emails directly from your contacts. - Record billable activity and expenses as they occur and assign it to a matter. - Upload documents or pictures to matters and preview any document in your Rocket Matter account. -Initiate a timer to help you track your time. - Access Rocket Matter’s exclusive internal Communicator to send secure messages to a user or group of users within your firm. -Push notifications for tasks, calendar events, and Communicator messages. Benefits: - Always have access to all your clients, contacts, matters and billing information. - Check your calendar at the courthouse and instantly schedule upcoming hearings, motions, conferences, depositions, and other important events. - Access all of the same data points as the web-based version of Rocket Matter. - Use timers and convenient billing functionality to make sure you never lose billable time associated with work you do between meetings, on the way to the office, or on the spur of the moment. - Instantly attach expenses to matters right at the moment you incur them. Requirements:  - iPhone® (5 or newer), iPod® touch with iOS® 8.0 and above, and iPad® (iOS 8.0 and above) - Rocket Matter subscription, including username and password (or sign up once you download the app.) - Wi-Fi or cellular data required Here’s why law firms love Rocket Matter: “Rocket Matter has paid for itself in spades: My firm has experienced a 30% increase in revenue because we are capturing so much time that previously went uncollected. Plus, this product is so easy even I can use it. We have also been thrilled with the customer service. Rocket Matter rocks!” Dawn Levine, Lyle & Levine, LLC “Rocket Matter continually provides meaningful updates to its law practice software. Rocket Matter has enabled our firm to effectively and efficiently capture billable time, facilitate and record client communication, quickly schedule client matter deadlines, and efficiently invoice ongoing matters and track collections, all while providing the firm a customer relationship management platform. Overall, Rocket Matter enables law firms of all sizes to focus on meeting client’s needs.” Kory Nelson, Kory W. Nelson, PLLC

Screenshots

CosmoLex4 screens
Rocket Matter4 screens

Verdict

The call

The clearest difference is rating: CosmoLex at 2.8 against Rocket Matter's 1.4. CosmoLex also leads on monetization model (free vs subscription). Rocket Matter's advantage is ratings volume (59 vs 13) and iOS requirement (11.0 vs 16.0). On price, review sentiment, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

CosmoLex holds the better App Store score, 2.8 against 1.4. Both are backed by a comparable volume of ratings — 13 and 59 respectively. Written reviews point the same way: 13% of CosmoLex's written reviews are positive against 10% of Rocket Matter's.

UpkeepUpdate frequency

CosmoLex ships an update every 3 months, Rocket Matter every 6 months. The most recent releases landed on October 17, 2026 and October 21, 2026 respectively.

Scorecard4 real differences · 6 level
CosmoLex versus Rocket Matter: the parameters behind the verdict, then further details
ParameterCosmoLexRocket Matter
PriceFreeFree
Rating2.8 (13 ratings) — better1.4 (59 ratings)
Positive reviews12.5% of reviews — better10.0% of reviews
Number of ratings1359 — better
Update frequencyEvery 3 months — betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterSubscription
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.011.0 — better
Further details — not scored
Size12 MB58 MB
Age rating4+4+
DeveloperCosmolex LLCRocket Matter, LLC

Customer experience

CosmoLex

All ratings13 ratings
Positive38.5%
Neutral15.4%
Negative46.2%
Written reviews8 reviews
Positive12.5%
Neutral25.0%
Negative62.5%

Rocket Matter

All ratings59 ratings
Positive8.5%
Neutral1.7%
Negative89.8%
Written reviews40 reviews
Positive10.0%
Neutral0.0%
Negative90.0%

In-app purchases

None

CosmoLex

No in-app purchases

None

Rocket Matter

No in-app purchases

Questions

Is CosmoLex free?
CosmoLex is free to download, with no in-app purchases.
Is Rocket Matter free?
Rocket Matter is free to download, with no in-app purchases.
Which has better reviews, CosmoLex or Rocket Matter?
CosmoLex is rated higher. CosmoLex averages 2.8 out of 5 from 13 ratings, while Rocket Matter averages 1.4 from 59 ratings.
Do CosmoLex or Rocket Matter have ads?
Neither CosmoLex nor Rocket Matter shows ads.
Which is updated more often, CosmoLex or Rocket Matter?
CosmoLex ships an update every 3 months, and Rocket Matter every 6 months. Most recently, CosmoLex was updated on October 17, 2026 and Rocket Matter on October 21, 2026.

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