Customer.io vs Sendbird:Which is more popular?
In September 2026, Customer.io had more branded searches than Sendbird among in app messaging platforms worldwide. Customer.io had about 12,300 branded searches, while Sendbird had 5,400. Customer.io made up 8.4% of all in app messaging platform searches we track, and Sendbird accounted for 3.7%. When we asked ChatGPT and Google AI Overviews about in app messaging platforms, Sendbird appeared in three of the five answers and Customer.io in one. Sendbird was mentioned before Customer.io in two out of three answers that named either.
Who do people search for more?
Customer.io, about 2 searches for every 1 for Sendbird
Who does AI mention more?
Sendbird, mentioned in 3 of 5 answers, Customer.io in 1
Who does AI recommend more?
Sendbird, named ahead of Customer.io in 2 of 3 answers
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Top in app messaging platforms in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, Sendbird was mentioned in three out of five: in all three ChatGPT answers, but not in either of the two Google AI Overviews. Customer.io was mentioned in one out of five: in one of the three ChatGPT answers, but not in either of the two Google AI Overviews. Sendbird was listed before Customer.io in two out of three answers that named either.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Intercom1st
Stream Chat2nd
Braze3rd
OneSignal4th
Appcues5th- Sendbird6th
- Customer.io7th
Iterable–
Airship–
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- Stream Chat3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- OneSignal3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Braze3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Sendbird3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Intercom3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Appcues2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Customer.io1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Iterable0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Airship0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about in app messaging platforms
5 answers
Asked ChatGPT
“Which in app messaging platform should I use?”
Asked ChatGPT
“What are the best in app messaging platforms?”
Asked ChatGPT
“What's the best in app messaging platform for inside apps?”
Searched Google, AI Overview
“in app messaging platforms”
Searched Google, AI Overview
“best in app messaging”
Brands are shown in the order each answer named them. The survey took place in the United States on October 21, 2026.
Is Customer.io or Sendbird more popular in search?
This chart shows how often people search Google for Customer.io and Sendbird by name. Each line represents a brand's share of searches for all nine in app messaging platforms we track, month by month, from English-language searches worldwide.
Share of searches by month for Customer.io, Sendbird. The figures are in the table below the chart.
View monthly share of searches table
| Month | Stream Chat | OneSignal | Customer.io | Braze | Appcues | Sendbird | Iterable | Intercom | Airship |
|---|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 35.2% | 39.8% | 8% | 4% | 4.3% | 7.8% | 0.43% | 0.31% | 0.14% |
| Nov 2025 | 32.4% | 43.8% | 7.3% | 3.9% | 4.7% | 7.1% | 0.39% | 0.28% | 0.12% |
| Dec 2025 | 34.3% | 41.4% | 8.3% | 4.1% | 4.4% | 6.6% | 0.43% | 0.32% | 0.17% |
| Jan 2026 | 38% | 38.9% | 7.8% | 4% | 4.2% | 6.2% | 0.44% | 0.3% | 0.13% |
| Feb 2026 | 31.6% | 40.7% | 10% | 4.9% | 5.3% | 6.5% | 0.48% | 0.31% | 0.17% |
| Mar 2026 | 55.8% | 27.8% | 5.6% | 2.7% | 3% | 4.5% | 0.34% | 0.22% | 0.09% |
| Apr 2026 | 34.9% | 42% | 8.4% | 3.4% | 3.7% | 6.7% | 0.42% | 0.27% | 0.14% |
| May 2026 | 46.5% | 34.7% | 6.9% | 3% | 3.7% | 4.6% | 0.42% | 0.22% | 0.1% |
| Jun 2026 | 64.6% | 22.9% | 4.7% | 2.3% | 2.5% | 2.5% | 0.26% | 0.12% | 0.08% |
| Jul 2026 | 62% | 24.2% | 5.3% | 2.3% | 2.9% | 2.9% | 0.28% | 0.14% | 0.09% |
| Aug 2026 | 38.6% | 39.1% | 8.6% | 3.8% | 4.6% | 4.6% | 0.4% | 0.22% | 0.15% |
| Sep 2026 | 41.2% | 38.4% | 8.4% | 3.9% | 3.7% | 3.7% | 0.38% | 0.22% | 0.14% |
How has the Customer.io and Sendbird comparison changed over the last 12 months?
3 findings
- Customer.io was ahead of Sendbird in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Customer.io’s share of searches among in app messaging platforms worldwide moved from 8% to 8.4%, and its estimated monthly branded searches held steady at 12.3K.
- Across the 12 months ending September 2026, Sendbird’s share of searches among in app messaging platforms worldwide moved from 7.8% to 3.7%, and its estimated monthly branded searches moved from 12.1K to 5.4K.
How did search popularity change for in app messaging platforms worldwide in September 2026?
1 change
In September 2026, Sendbird lost share of searches among in app messaging platforms worldwide, from 4.6% to 3.7%.
How are branded searches counted?
7 search terms
Brandwave collects information about searches that people make online using Customer.io’s and Sendbird’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.
Customer.io
6 branded search terms
- customer io
- customer io crm
- customer io email
- customer io sms
- customer io whatsapp
- Customer.io
Sendbird
1 branded search term
- sendbird
Other head-to-heads among in app messaging platforms
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