--- title: "CostOS vs STACK: Which is searched more?" description: "Is CostOS or STACK more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Construction estimating software 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/costos-vs-stack-construction" publisher: "Brandwave" --- # CostOS vs STACK: Which is searched more? Is CostOS or STACK more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Construction estimating software 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**: CostOS and STACK - **Competitive set**: Construction estimating software - **Market**: Global - **Month measured**: Sep 2026 - **CostOS Share of Search**: 37.7% - **STACK Share of Search**: 0.32% ## Is CostOS or STACK more popular in search? - In September 2026, CostOS had more branded searches than STACK among construction estimating software worldwide. CostOS had about 201,000 branded searches, while STACK had 1,720. CostOS made up 37.7% of all construction estimating software searches we track, and STACK accounted for 0.32%. - CostOS was ahead of STACK in every measured month of the 12 months ending September 2026. - Across the 12 months ending September 2026, CostOS’s share of searches among construction estimating software worldwide moved from 47.2% to 37.7%, and its estimated monthly branded searches moved from 301K to 201K. - Across the 12 months ending September 2026, STACK’s share of searches among construction estimating software worldwide held steady at 0.32%, and its estimated monthly branded searches moved from 2K to 1.7K. ## Top construction estimating software in ChatGPT and Google AI Overviews In three ChatGPT questions and two Google AI Overviews, STACK appeared in all five answers. CostOS did not appear in any of the five answers. 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 | | --- | --- | --- | --- | --- | | Buildxact | 1st | 2 of 3 | 2 of 2 | 4 of 5 | | STACK | 2nd | 3 of 3 | 2 of 2 | 5 of 5 | | Clear Estimates | 3rd | 1 of 3 | 2 of 2 | 3 of 5 | | Procore | 4th | 3 of 3 | 2 of 2 | 5 of 5 | | JobTread | 5th | 2 of 3 | 0 of 2 | 2 of 5 | | Buildertrend | 6th | 2 of 3 | 1 of 2 | 3 of 5 | | PlanSwift | 7th | 2 of 3 | 2 of 2 | 4 of 5 | | Contractor Foreman | 8th | 2 of 3 | 0 of 2 | 2 of 5 | | Bluebeam | 9th | 1 of 3 | 0 of 2 | 1 of 5 | | CostOS | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Cubit | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | ## Every AI answer about construction estimating software - Asked ChatGPT "Which construction estimating software should I use?": 1. STACK, 2. Buildertrend, 3. Procore, 4. Clear Estimates, 5. PlanSwift - Asked ChatGPT "What are the best construction estimating software options?": 1. JobTread, 2. STACK, 3. Buildxact, 4. Procore, 5. Bluebeam, 6. Contractor Foreman, 7. PlanSwift, 8. Buildertrend - Asked ChatGPT "What's the best construction estimating software for job cost estimates?": 1. JobTread, 2. Buildxact, 3. Contractor Foreman, 4. STACK, 5. Procore - Searched Google, AI Overview "construction estimating software": 1. Clear Estimates, 2. Buildxact, 3. STACK, 4. PlanSwift, 5. Procore - Searched Google, AI Overview "building estimate software": 1. Buildxact, 2. Clear Estimates, 3. Buildertrend, 4. Procore, 5. PlanSwift, 6. STACK Not named in any answer: CostOS and Cubit. 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 construction estimating software worldwide in September 2026? - In September 2026, CostOS lost share of searches among construction estimating software worldwide, from 38.6% to 37.7%. - Estimated monthly branded searches for STACK worldwide fell 14.9% over 12 measured months, from 2K to 1.7K in September 2026. ## Month by month | Month | CostOS estimated searches | CostOS Share of Search | CostOS rank | STACK estimated searches | STACK Share of Search | STACK rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 301K | 47.2% | 1 | 2K | 0.32% | 10 | | Nov 2025 | 301K | 50.7% | 1 | 1.7K | 0.29% | 10 | | Dec 2025 | 246K | 45.9% | 1 | 1.7K | 0.32% | 11 | | Jan 2026 | 246K | 40.4% | 1 | 2.2K | 0.36% | 10 | | Feb 2026 | 201K | 37.4% | 1 | 2.2K | 0.41% | 10 | | Mar 2026 | 246K | 41.5% | 1 | 2.3K | 0.39% | 10 | | Apr 2026 | 246K | 16% | 2 | 2.2K | 0.14% | 10 | | May 2026 | 246K | 43.5% | 1 | 1.7K | 0.3% | 10 | | Jun 2026 | 201K | 37.2% | 1 | 2K | 0.37% | 10 | | Jul 2026 | 201K | 39.2% | 1 | 1.7K | 0.34% | 10 | | Aug 2026 | 201K | 38.6% | 1 | 1.7K | 0.33% | 9 | | Sep 2026 | 201K | 37.7% | 1 | 1.7K | 0.32% | 9 | ## How each brand is measured Brandwave collects information about searches that people make online using CostOS’s and STACK’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. - **CostOS**: Measured on the search term “costos”. - **STACK**: Measured on the search terms “stack estimating” and “stack takeoff”, summed into one figure. - [CostOS profile](/demand/global-en/brands/costos) - [STACK profile](/demand/global-en/brands/stack-construction) - [All construction estimating software worldwide](/demand/global-en/categories/construction-estimating-software): The set both shares are measured inside, 11 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 CostOS or STACK more popular in search? In September 2026, CostOS had more branded searches than STACK among construction estimating software worldwide. CostOS had about 201,000 branded searches, while STACK had 1,720. CostOS made up 37.7% of all construction estimating software searches we track, and STACK accounted for 0.32%. ## Cite this page Brandwave. "CostOS vs STACK: Which is searched more?". https://gobrandwave.com/demand/global-en/compare/costos-vs-stack-construction This page is also available as HTML at https://gobrandwave.com/demand/global-en/compare/costos-vs-stack-construction. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.