--- title: "Luminance vs Spellbook: Which is searched more?" description: "Is Luminance or Spellbook more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Contract review platforms set worldwide. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time." canonical: "https://gobrandwave.com/demand/global-en/compare/luminance-ai-vs-spellbook" publisher: "Brandwave" --- # Luminance vs Spellbook: Which is searched more? Is Luminance or Spellbook more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Contract review platforms set worldwide. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time. ## Key facts - **Compared**: Luminance and Spellbook - **Competitive set**: Contract review platforms - **Market**: Global - **Month measured**: Sep 2026 - **Luminance Share of Search**: 0.82% - **Spellbook Share of Search**: 10.4% ## Is Luminance or Spellbook more popular in search? - In September 2026, Spellbook had more branded searches than Luminance among contract review platforms worldwide. Spellbook had about 22,200 branded searches, while Luminance had 1,740. Spellbook made up 10.4% of all contract review platform searches we track, and Luminance accounted for 0.82%. - Spellbook was ahead of Luminance in every measured month of the 12 months ending September 2026. - Across the 12 months ending September 2026, Luminance’s share of searches among contract review platforms worldwide moved from 1.6% to 0.82%, and its estimated monthly branded searches moved from 2.6K to 1.7K. - 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. ## Top contract review platforms in ChatGPT and Google AI Overviews In three ChatGPT questions and two Google AI Overviews, Spellbook appeared in all five answers. Luminance was mentioned in three out of five: in all three ChatGPT answers, but not in either of the two Google AI Overviews. Spellbook was listed before Luminance in every answer. Brands get a higher AI rank if they are mentioned earlier in the answers that list options. | Brand | AI rank | ChatGPT answers that named it | Google AI Overviews that named it | All answers that named it | | --- | --- | --- | --- | --- | | LegalOn | 1st | 3 of 3 | 2 of 2 | 5 of 5 | | Spellbook | 2nd | 3 of 3 | 2 of 2 | 5 of 5 | | Ironclad | 3rd | 3 of 3 | 2 of 2 | 5 of 5 | | Luminance | 4th | 3 of 3 | 0 of 2 | 3 of 5 | | Juro | 5th | 3 of 3 | 0 of 2 | 3 of 5 | | Harvey | 6th | 1 of 3 | 1 of 2 | 2 of 5 | | Kira | 7th | 1 of 3 | 1 of 2 | 2 of 5 | | LawGeex | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | LexCheck | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Eigen | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | ## Every AI answer about contract review platforms - Asked ChatGPT "Which contract review platform should I use?": 1. Spellbook, 2. LegalOn, 3. Ironclad, 4. Luminance, 5. Juro - Asked ChatGPT "What are the best contract review platforms?": 1. Spellbook, 2. LegalOn, 3. Ironclad, 4. Juro, 5. Luminance, 6. Kira, 7. Harvey - Asked ChatGPT "What's the best contract review platform for legal teams?": 1. LegalOn, 2. Ironclad, 3. Spellbook, 4. Luminance, 5. Juro - Searched Google, AI Overview "contract review software": 1. LegalOn, 2. Spellbook, 3. Harvey, 4. Ironclad - Searched Google, AI Overview "ai contract review": 1. LegalOn, 2. Spellbook, 3. Ironclad, 4. Kira Not named in any answer: LawGeex, LexCheck and Eigen. Brands are listed in the order each answer named them. The answers were collected in the United States on October 20, 2026. ## How did search popularity change for contract review platforms worldwide in September 2026? - In September 2026, Spellbook gained share of searches among contract review platforms worldwide, from 9.8% to 10.4%. - Estimated monthly branded searches for Luminance worldwide fell 32.3% over 12 measured months, from 2.6K to 1.7K in September 2026. ## Month by month | Month | Luminance estimated searches | Luminance Share of Search | Luminance rank | Spellbook estimated searches | Spellbook Share of Search | Spellbook rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 2.6K | 1.6% | 4 | 22.2K | 13.4% | 3 | | Nov 2025 | 2.1K | 1.5% | 5 | 18.1K | 13.3% | 3 | | Dec 2025 | 1.7K | 1.3% | 5 | 18.1K | 13.4% | 3 | | Jan 2026 | 2.6K | 1.7% | 5 | 22.2K | 14.6% | 3 | | Feb 2026 | 2.6K | 1.5% | 5 | 22.2K | 13% | 3 | | Mar 2026 | 2.7K | 1.3% | 5 | 27.1K | 13.1% | 3 | | Apr 2026 | 2.6K | 1.4% | 4 | 22.2K | 11.7% | 3 | | May 2026 | 2.6K | 1.4% | 5 | 22.2K | 11.7% | 3 | | Jun 2026 | 1.8K | 0.96% | 5 | 18.1K | 9.8% | 3 | | Jul 2026 | 1.7K | 0.93% | 5 | 18.1K | 9.8% | 3 | | Aug 2026 | 1.4K | 0.75% | 5 | 18.1K | 9.8% | 3 | | Sep 2026 | 1.7K | 0.82% | 5 | 22.2K | 10.4% | 3 | ## How each brand is measured Brandwave collects information about searches that people make online using Luminance’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. - **Luminance**: Measured on the search terms “luminance ai” and “luminance legal”, summed into one figure. - **Spellbook**: Measured on the search term “spellbook”. - [Luminance profile](/demand/global-en/brands/luminance-ai) - [Spellbook profile](/demand/global-en/brands/spellbook) - [All contract review platforms worldwide](/demand/global-en/categories/contract-review-platforms): The set both shares are measured inside, 10 brands. ## Methodology - [How is the Brand Demand Index measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused. ## Frequently asked questions ### Is Luminance or Spellbook more popular in search? In September 2026, Spellbook had more branded searches than Luminance among contract review platforms worldwide. Spellbook had about 22,200 branded searches, while Luminance had 1,740. Spellbook made up 10.4% of all contract review platform searches we track, and Luminance accounted for 0.82%. ## Cite this page Brandwave. "Luminance vs Spellbook: Which is searched more?". https://gobrandwave.com/demand/global-en/compare/luminance-ai-vs-spellbook This page is also available as HTML at https://gobrandwave.com/demand/global-en/compare/luminance-ai-vs-spellbook. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.