LegalOn vs Spellbook:Which is more popular?
In September 2026, LegalOn had more branded searches than Spellbook among contract review platforms worldwide. LegalOn had about 49,500 branded searches, while Spellbook had 22,200. LegalOn made up 23.2% of all contract review platform searches we track, and Spellbook accounted for 10.4%. When we asked ChatGPT and Google AI Overviews about contract review platforms, both LegalOn and Spellbook appeared in all five answers. LegalOn was mentioned before Spellbook in three out of five answers.
Who do people search for more?
LegalOn, about 2 searches for every 1 for Spellbook
Who does AI mention more?
Both are mentioned in every answer we collected.
Who does AI recommend more?
LegalOn, named ahead of Spellbook in 3 of 5 answers
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Top contract review platforms in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, both LegalOn and Spellbook showed up in all five answers. LegalOn was listed before Spellbook in three of them.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- LegalOn5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Spellbook5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Ironclad5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Luminance3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Juro3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Harvey2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Kira2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
LawGeex0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
LexCheck0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about contract review platforms
5 answers
Asked ChatGPT
“Which contract review platform should I use?”
Asked ChatGPT
“What are the best contract review platforms?”
Asked ChatGPT
“What's the best contract review platform for legal teams?”
Searched Google, AI Overview
“contract review software”
Searched Google, AI Overview
“ai contract review”
Brands are shown in the order each answer named them. The survey took place in the United States on October 20, 2026.
Is LegalOn or Spellbook more popular in search?
This chart shows how often people search Google for LegalOn and Spellbook by name. Each line represents a brand's share of searches for all ten contract review platforms we track, month by month, from English-language searches worldwide.
Share of searches by month for LegalOn, Spellbook. The figures are in the table below the chart.
View monthly share of searches table
| Month | Harvey | LegalOn | Spellbook | Ironclad | Luminance | Kira | LawGeex | Juro | LexCheck |
|---|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 44.7% | 36.6% | 13.4% | 1.4% | 1.6% | 0.97% | 0.97% | 0.24% | 0.24% |
| Nov 2025 | 44.6% | 36.5% | 13.3% | 1.6% | 1.5% | 1.2% | 0.96% | 0.24% | 0.19% |
| Dec 2025 | 44.8% | 36.7% | 13.4% | 1.5% | 1.3% | 0.74% | 1.2% | 0.21% | 0.16% |
| Jan 2026 | 39.9% | 39.9% | 14.6% | 1.8% | 1.7% | 0.86% | 0.86% | 0.23% | 0.17% |
| Feb 2026 | 52.9% | 29% | 13% | 1.7% | 1.5% | 0.76% | 0.76% | 0.18% | 0.15% |
| Mar 2026 | 53.2% | 29.2% | 13.1% | 1.4% | 1.3% | 0.77% | 0.63% | 0.23% | 0.1% |
| Apr 2026 | 58% | 26.1% | 11.7% | 1.3% | 1.4% | 0.69% | 0.53% | 0.2% | 0.09% |
| May 2026 | 57.8% | 26% | 11.7% | 1.8% | 1.4% | 0.68% | 0.46% | 0.16% | 0.07% |
| Jun 2026 | 59.5% | 26.8% | 9.8% | 1.8% | 0.96% | 0.48% | 0.48% | 0.17% | 0.08% |
| Jul 2026 | 59.5% | 26.8% | 9.8% | 1.9% | 0.93% | 0.48% | 0.48% | 0.12% | 0.06% |
| Aug 2026 | 59.7% | 26.9% | 9.8% | 1.9% | 0.75% | 0.39% | 0.32% | 0.14% | 0.05% |
| Sep 2026 | 63.3% | 23.2% | 10.4% | 1.5% | 0.82% | 0.41% | 0.28% | 0.1% | 0.05% |
How has the LegalOn and Spellbook comparison changed over the last 12 months?
3 findings
- LegalOn was ahead of Spellbook in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, LegalOn’s share of searches among contract review platforms worldwide moved from 36.6% to 23.2%, and its estimated monthly branded searches moved from 60.5K to 49.5K.
- Across the 12 months ending September 2026, Spellbook’s share of searches among contract review platforms worldwide moved from 13.4% to 10.4%, and its estimated monthly branded searches held steady at 22.2K.
How did search popularity change for contract review platforms worldwide in September 2026?
2 changes
In September 2026, Spellbook gained share of searches among contract review platforms worldwide, from 9.8% to 10.4%.
In September 2026, LegalOn lost share of searches among contract review platforms worldwide, from 26.9% to 23.2%.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using LegalOn’s and Spellbook’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.
Other head-to-heads among contract review platforms
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