CosmoLex vs Rocket Matter:Which is more popular?
In September 2026, CosmoLex had more branded searches than Rocket Matter among legal billing software worldwide. CosmoLex had about 6,600 branded searches, while Rocket Matter had 1,600. CosmoLex made up 10.8% of all legal billing software searches we track, and Rocket Matter accounted for 2.6%. When we asked ChatGPT and Google AI Overviews about legal billing software, CosmoLex appeared in three of the five answers and Rocket Matter in none.
Who do people search for more?
CosmoLex, about 4 searches for every 1 for Rocket Matter
Who does AI mention more?
CosmoLex, mentioned in 3 of 5 answers, Rocket Matter in 0
Who does AI recommend more?
CosmoLex, the only one of the two named
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Top legal billing software in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, CosmoLex was mentioned in three out of five: in all three ChatGPT answers, but not in either of the two Google AI Overviews. Rocket Matter did not appear in any of the five answers.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Clio1st
MyCase2nd
PracticePanther3rd
LawPay4th
LeanLaw5th- CosmoLex6th
Smokeball7th
TimeSolv8th
Bill4Time9th
Rocket Matter–
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- Clio5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- MyCase5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- PracticePanther4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- CosmoLex3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- LeanLaw3 of 5Named in 1 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- LawPay2 of 5Named in 0 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- Smokeball2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Bill4Time2 of 5Named in 0 of 3 ChatGPT answersNamed in 2 of 2 Google answers
- TimeSolv2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Rocket Matter0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about legal billing software
5 answers
Asked ChatGPT
“Which legal billing system should I use?”
Asked ChatGPT
“What are the best legal billing systems?”
Asked ChatGPT
“What's the best legal billing system for law firm time tracking?”
Searched Google, AI Overview
“legal billing software”
Searched Google, AI Overview
“law firm billing software”
Not named in any answer:
Brands are shown in the order each answer named them. The survey took place in the United States on October 21, 2026.
Is CosmoLex or Rocket Matter more popular in search?
This chart shows how often people search Google for CosmoLex and Rocket Matter by name. Each line represents a brand's share of searches for all ten legal billing software we track, month by month, from English-language searches worldwide.
Share of searches by month for CosmoLex, Rocket Matter. The figures are in the table below the chart.
View monthly share of searches table
| Month | LawPay | PracticePanther | Smokeball | CosmoLex | Bill4Time | TimeSolv | Clio | LeanLaw | Rocket Matter | MyCase |
|---|---|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 25.8% | 17.3% | 17.3% | 11.6% | 7.7% | 9.4% | 3.9% | 2.3% | 4.1% | 0.56% |
| Nov 2025 | 24.4% | 16.3% | 19.9% | 13.3% | 7.2% | 8.9% | 3.9% | 2.6% | 3.1% | 0.23% |
| Dec 2025 | 26% | 17.4% | 17.4% | 11.6% | 7.7% | 9.5% | 4.2% | 2.8% | 3.3% | 0.19% |
| Jan 2026 | 22.2% | 18.2% | 18.2% | 12.2% | 8.1% | 9.9% | 4.6% | 2.9% | 3.6% | 0.17% |
| Feb 2026 | 22.3% | 14.9% | 22.3% | 12.2% | 8.2% | 10% | 4.5% | 2.4% | 2.9% | 0.21% |
| Mar 2026 | 21.3% | 17.4% | 21.3% | 11.6% | 7.8% | 9.5% | 5.4% | 2.7% | 2.7% | 0.24% |
| Apr 2026 | 23.3% | 15.6% | 19% | 12.7% | 8.5% | 10.4% | 4.4% | 3% | 3% | 0.22% |
| May 2026 | 24.4% | 16.3% | 19.9% | 13.3% | 7.2% | 8.9% | 4.5% | 2.6% | 2.6% | 0.18% |
| Jun 2026 | 22.9% | 18.8% | 18.8% | 12.6% | 8.4% | 8.4% | 4.2% | 2.9% | 2.9% | 0.22% |
| Jul 2026 | 23.2% | 19% | 23.2% | 10.4% | 8.5% | 6.9% | 3.7% | 2.5% | 2.5% | 0.17% |
| Aug 2026 | 24.2% | 19.8% | 19.8% | 10.8% | 7.2% | 8.8% | 3.8% | 2.6% | 2.6% | 0.18% |
| Sep 2026 | 24.1% | 19.7% | 19.7% | 10.8% | 8.8% | 7.2% | 4.3% | 2.6% | 2.6% | 0.23% |
How has the CosmoLex and Rocket Matter comparison changed over the last 12 months?
3 findings
- CosmoLex was ahead of Rocket Matter in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, CosmoLex’s share of searches among legal billing software worldwide moved from 11.6% to 10.8%, and its estimated monthly branded searches moved from 8.1K to 6.6K.
- Across the 12 months ending September 2026, Rocket Matter’s share of searches among legal billing software worldwide moved from 4.1% to 2.6%, and its estimated monthly branded searches moved from 2.9K to 1.6K.
How did search popularity change for legal billing software worldwide in September 2026?
2 changes
Estimated monthly branded searches for Rocket Matter worldwide fell 44.8% over 12 measured months, from 2.9K to 1.6K in September 2026.
Estimated monthly branded searches for CosmoLex worldwide fell 18.5% over 12 measured months, from 8.1K to 6.6K in September 2026.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using CosmoLex’s and Rocket Matter’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
CosmoLex
1 branded search term
- cosmolex
Rocket Matter
1 branded search term
- rocket matter
Other head-to-heads among legal billing software
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