--- title: "IRIS vs Karbon: Which is searched more in the United Kingdom?" description: "Is IRIS or Karbon more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Accounting practice software set in the United Kingdom. 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/uk/compare/iris-software-vs-karbon" publisher: "Brandwave" --- # IRIS vs Karbon: Which is searched more in the United Kingdom? Is IRIS or Karbon more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Accounting practice software set in the United Kingdom. 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**: IRIS and Karbon - **Competitive set**: Accounting practice software - **Market**: United Kingdom - **Month measured**: Sep 2026 - **IRIS Share of Search**: 10.2% - **Karbon Share of Search**: 18.4% ## Is IRIS or Karbon more popular in search? - In September 2026, Karbon had more branded searches than IRIS among accounting practice software in the United Kingdom. Karbon had about 2,900 branded searches, while IRIS had 1,600. Karbon made up 18.4% of all accounting practice software searches we track, and IRIS accounted for 10.2%. - Karbon was ahead of IRIS in every measured month of the 12 months ending September 2026. - Across the 12 months ending September 2026, IRIS’s share of searches among accounting practice software in the United Kingdom moved from 10.7% to 10.2%, and its estimated monthly branded searches moved from 1.9K to 1.6K. - Across the 12 months ending September 2026, Karbon’s share of searches among accounting practice software in the United Kingdom moved from 20.2% to 18.4%, and its estimated monthly branded searches moved from 3.6K to 2.9K. ## Top accounting practice software in ChatGPT and Google AI Overviews In three ChatGPT questions and two Google AI Overviews, Karbon appeared in all five answers. IRIS was mentioned in three out of five: in all three ChatGPT answers, but not in either of the two Google AI Overviews. Karbon was listed before IRIS in four out of 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 | | --- | --- | --- | --- | --- | | TaxDome | 1st | 3 of 3 | 2 of 2 | 5 of 5 | | Karbon | 2nd | 3 of 3 | 2 of 2 | 5 of 5 | | IRIS | 3rd | 3 of 3 | 0 of 2 | 3 of 5 | | TaxCalc | 4th | 3 of 3 | 0 of 2 | 3 of 5 | | Senta | 5th | 2 of 3 | 0 of 2 | 2 of 5 | | Capium | 6th | 2 of 3 | 0 of 2 | 2 of 5 | | PracticeFlow | 7th | 0 of 3 | 2 of 2 | 2 of 5 | | Xero Practice Manager | 8th | 1 of 3 | 0 of 2 | 1 of 5 | ## Every AI answer about accounting practice software - Asked ChatGPT "What's the best practice management software for UK accountants?": 1. Karbon, 2. TaxDome, 3. IRIS, 4. Senta, 5. TaxCalc - Asked ChatGPT "Which software do UK accountancy firms use for tax returns and practice management?": 1. TaxCalc, 2. IRIS, 3. Senta, 4. Xero Practice Manager, 5. Karbon, 6. TaxDome, 7. Capium - Asked ChatGPT "What's the best practice management software for a small accounting firm in the UK?": 1. TaxDome, 2. Karbon, 3. Capium, 4. TaxCalc, 5. IRIS - Searched Google, AI Overview "practice management software for accountants": 1. TaxDome, 2. Karbon, 3. PracticeFlow - Searched Google, AI Overview "accounting practice management software": 1. TaxDome, 2. Karbon, 3. PracticeFlow Brands are listed in the order each answer named them. The answers were collected in United Kingdom on October 23, 2026. ## How did search popularity change for United Kingdom accounting practice software in September 2026? - In September 2026, IRIS gained share of searches among accounting practice software in the United Kingdom, from 8.5% to 10.2%. - In September 2026, Karbon lost share of searches among accounting practice software in the United Kingdom, from 18.9% to 18.4%. ## Month by month | Month | IRIS estimated searches | IRIS Share of Search | IRIS rank | Karbon estimated searches | Karbon Share of Search | Karbon rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 1.9K | 10.7% | 4 | 3.6K | 20.2% | 3 | | Nov 2025 | 1.9K | 11.1% | 4 | 2.9K | 17% | 3 | | Dec 2025 | 1.3K | 8.5% | 5 | 2.9K | 18.9% | 3 | | Jan 2026 | 1.6K | 7.4% | 5 | 3.6K | 16.8% | 3 | | Feb 2026 | 1.6K | 9.7% | 4 | 3.6K | 21.9% | 3 | | Mar 2026 | 1.9K | 9.9% | 4 | 3.6K | 18.8% | 3 | | Apr 2026 | 1.6K | 7.9% | 4 | 3.6K | 17.8% | 3 | | May 2026 | 1.6K | 9.4% | 5 | 2.9K | 17% | 3 | | Jun 2026 | 1.3K | 7.4% | 5 | 3.6K | 20.5% | 3 | | Jul 2026 | 1.3K | 7.9% | 5 | 2.9K | 17.6% | 3 | | Aug 2026 | 1.3K | 8.5% | 4 | 2.9K | 18.9% | 3 | | Sep 2026 | 1.6K | 10.2% | 4 | 2.9K | 18.4% | 3 | ## How each brand is measured Brandwave collects information about searches that people make online using IRIS’s and Karbon’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. - **IRIS**: Measured on the search term “iris software”. - **Karbon**: Measured on the search term “karbon”. - [IRIS profile](/demand/uk/brands/iris-software) - [Karbon profile](/demand/uk/brands/karbon) - [All accounting practice software in the United Kingdom](/demand/uk/categories/uk-accounting-practice-software): The set both shares are measured inside, 8 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 IRIS or Karbon more popular in search? In September 2026, Karbon had more branded searches than IRIS among accounting practice software in the United Kingdom. Karbon had about 2,900 branded searches, while IRIS had 1,600. Karbon made up 18.4% of all accounting practice software searches we track, and IRIS accounted for 10.2%. ## Cite this page Brandwave. "IRIS vs Karbon: Which is searched more in the United Kingdom?". https://gobrandwave.com/demand/uk/compare/iris-software-vs-karbon This page is also available as HTML at https://gobrandwave.com/demand/uk/compare/iris-software-vs-karbon. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.