--- title: "Apache Flink vs Pub/Sub: Which is searched more?" description: "Is Apache Flink or Pub/Sub more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Streaming data 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/apache-flink-vs-pub-sub" publisher: "Brandwave" --- # Apache Flink vs Pub/Sub: Which is searched more? Is Apache Flink or Pub/Sub more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Streaming data 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**: Apache Flink and Pub/Sub - **Competitive set**: Streaming data platforms - **Market**: Global - **Month measured**: Sep 2026 - **Apache Flink Share of Search**: 27% - **Pub/Sub Share of Search**: 49.3% ## Is Apache Flink or Pub/Sub more popular in search? - In September 2026, Pub/Sub had more branded searches than Apache Flink among streaming data platforms worldwide. Pub/Sub had about 33,100 branded searches, while Apache Flink had 18,100. Pub/Sub made up 49.3% of all streaming data platform searches we track, and Apache Flink accounted for 27%. - Pub/Sub was ahead of Apache Flink in every measured month of the 12 months ending September 2026. - Across the 12 months ending September 2026, Apache Flink’s share of searches among streaming data platforms worldwide moved from 30.6% to 27%, and its estimated monthly branded searches moved from 27.1K to 18.1K. - Across the 12 months ending September 2026, Pub/Sub’s share of searches among streaming data platforms worldwide moved from 37.4% to 49.3%, and its estimated monthly branded searches held steady at 33.1K. ## Top streaming data platforms in ChatGPT and Google AI Overviews In three ChatGPT questions and two Google AI Overviews, Apache Flink was mentioned in four out of five: in two of the three ChatGPT answers and in both Google AI Overviews. Pub/Sub was mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. Pub/Sub was listed before Apache Flink in three 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 | | --- | --- | --- | --- | --- | | Kafka | 1st | 3 of 3 | 2 of 2 | 5 of 5 | | Confluent | 2nd | 3 of 3 | 2 of 2 | 5 of 5 | | Kinesis | 3rd | 3 of 3 | 2 of 2 | 5 of 5 | | Redpanda | 4th | 3 of 3 | 2 of 2 | 5 of 5 | | Pub/Sub | 5th | 3 of 3 | 1 of 2 | 4 of 5 | | Apache Flink | 6th | 2 of 3 | 2 of 2 | 4 of 5 | | Apache Pulsar | 7th | 1 of 3 | 1 of 2 | 2 of 5 | | Azure Event Hubs | 8th | 1 of 3 | 1 of 2 | 2 of 5 | ## Every AI answer about streaming data platforms - Asked ChatGPT "Which streaming data platform should I use?": 1. Kafka, 2. Confluent, 3. Kinesis, 4. Pub/Sub, 5. Apache Flink, 6. Redpanda - Asked ChatGPT "What are the best streaming data platforms?": 1. Kafka, 2. Confluent, 3. Kinesis, 4. Apache Flink, 5. Redpanda, 6. Pub/Sub, 7. Azure Event Hubs, 8. Apache Pulsar - Asked ChatGPT "What's the best streaming data platform for event data?": 1. Confluent, 2. Kafka, 3. Redpanda, 4. Kinesis, 5. Pub/Sub - Searched Google, AI Overview "streaming data platforms": 1. Kafka, 2. Confluent, 3. Redpanda, 4. Kinesis, 5. Apache Flink - Searched Google, AI Overview "event streaming platform": 1. Kafka, 2. Confluent, 3. Redpanda, 4. Apache Pulsar, 5. Kinesis, 6. Pub/Sub, 7. Azure Event Hubs, 8. Apache Flink Brands are listed in the order each answer named them. The answers were collected in the United States on October 21, 2026. ## How did search popularity change for streaming data platforms worldwide in September 2026? - In September 2026, Apache Flink gained share of searches among streaming data platforms worldwide, from 23% to 27%. - In September 2026, Pub/Sub lost share of searches among streaming data platforms worldwide, from 51.4% to 49.3%. ## Month by month | Month | Apache Flink estimated searches | Apache Flink Share of Search | Apache Flink rank | Pub/Sub estimated searches | Pub/Sub Share of Search | Pub/Sub rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 27.1K | 30.6% | 2 | 33.1K | 37.4% | 1 | | Nov 2025 | 22.2K | 28.1% | 2 | 33.1K | 41.9% | 1 | | Dec 2025 | 18.1K | 24.9% | 2 | 33.1K | 45.5% | 1 | | Jan 2026 | 22.2K | 28.1% | 2 | 33.1K | 41.9% | 1 | | Feb 2026 | 22.2K | 28.9% | 2 | 33.1K | 43.1% | 1 | | Mar 2026 | 22.2K | 25.6% | 2 | 40.5K | 46.7% | 1 | | Apr 2026 | 18.1K | 23.1% | 2 | 40.5K | 51.8% | 1 | | May 2026 | 18.1K | 23.7% | 2 | 40.5K | 53.1% | 1 | | Jun 2026 | 18.1K | 23.7% | 2 | 40.5K | 53.1% | 1 | | Jul 2026 | 14.8K | 20.2% | 2 | 40.5K | 55.3% | 1 | | Aug 2026 | 14.8K | 23% | 2 | 33.1K | 51.4% | 1 | | Sep 2026 | 18.1K | 27% | 2 | 33.1K | 49.3% | 1 | ## How each brand is measured Brandwave collects information about searches that people make online using Apache Flink’s and Pub/Sub’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. - **Apache Flink**: Measured on the search term “apache flink”. - **Pub/Sub**: Measured on the search term “pub/sub”. - [Apache Flink profile](/demand/global-en/brands/apache-flink) - [Pub/Sub profile](/demand/global-en/brands/pub-sub) - [All streaming data platforms worldwide](/demand/global-en/categories/streaming-data-platforms): 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 Apache Flink or Pub/Sub more popular in search? In September 2026, Pub/Sub had more branded searches than Apache Flink among streaming data platforms worldwide. Pub/Sub had about 33,100 branded searches, while Apache Flink had 18,100. Pub/Sub made up 49.3% of all streaming data platform searches we track, and Apache Flink accounted for 27%. ## Cite this page Brandwave. "Apache Flink vs Pub/Sub: Which is searched more?". https://gobrandwave.com/demand/global-en/compare/apache-flink-vs-pub-sub This page is also available as HTML at https://gobrandwave.com/demand/global-en/compare/apache-flink-vs-pub-sub. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.