Customer.io vs OneSignal:Which is more popular?
In September 2026, OneSignal had more branded searches than Customer.io among mobile marketing platforms worldwide. OneSignal had about 56,100 branded searches, while Customer.io had 12,300. OneSignal made up 37.7% of all mobile marketing platform searches we track, and Customer.io accounted for 8.2%. When we asked ChatGPT and Google AI Overviews about mobile marketing platforms, OneSignal appeared in three of the five answers and Customer.io in two. OneSignal was mentioned before Customer.io in every answer that named either.
Who do people search for more?
OneSignal, about 5 searches for every 1 for Customer.io
Who does AI mention more?
OneSignal, mentioned in 3 of 5 answers, Customer.io in 2
Who does AI recommend more?
OneSignal, named ahead of Customer.io in 3 of 3 answers
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Top mobile marketing platforms in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, OneSignal 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 two out of five: in two of the three ChatGPT answers, but not in either of the two Google AI Overviews. OneSignal was listed before Customer.io in every answer that named either.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
Braze5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers- OneSignal3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Airship3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
AppsFlyer2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Customer.io2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Iterable2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
CleverTap2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
MoEngage2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
See every answer about mobile marketing platforms
5 answers
Asked ChatGPT
“Which mobile marketing platform should I use?”
Asked ChatGPT
“What are the best mobile marketing platforms?”
Asked ChatGPT
“What's the best mobile marketing platform for in-app messaging?”
Searched Google, AI Overview
“mobile marketing platforms”
Searched Google, AI Overview
“in-app marketing tool”
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 OneSignal more popular in search?
This chart shows how often people search Google for Customer.io and OneSignal by name. Each line represents a brand's share of searches for all eight mobile marketing platforms we track, month by month, from English-language searches worldwide.
Share of searches by month for OneSignal, Customer.io. The figures are in the table below the chart.
View monthly share of searches table
| Month | AppsFlyer | OneSignal | Customer.io | Braze | Iterable | Airship | CleverTap | MoEngage |
|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 47.8% | 39.6% | 8% | 4% | 0.43% | 0.14% | 0.1% | 0.01% |
| Nov 2025 | 48.9% | 40.3% | 6.7% | 3.6% | 0.36% | 0.11% | 0.08% | 0.02% |
| Dec 2025 | 47.6% | 39.8% | 7.9% | 3.9% | 0.41% | 0.17% | 0.1% | 0.02% |
| Jan 2026 | 47.6% | 39.7% | 7.9% | 4.1% | 0.44% | 0.14% | 0.06% | 0.01% |
| Feb 2026 | 46.4% | 38.7% | 9.5% | 4.7% | 0.45% | 0.16% | 0.12% | 0.02% |
| Mar 2026 | 52.7% | 35.9% | 7.2% | 3.5% | 0.44% | 0.12% | 0.06% | 0.01% |
| Apr 2026 | 48% | 40% | 8% | 3.3% | 0.4% | 0.14% | 0.11% | 0.01% |
| May 2026 | 48% | 39.9% | 8% | 3.4% | 0.48% | 0.11% | 0.08% | 0.01% |
| Jun 2026 | 53.5% | 35.1% | 7.3% | 3.5% | 0.4% | 0.12% | 0.08% | 0.01% |
| Jul 2026 | 49.9% | 37.6% | 8.3% | 3.6% | 0.43% | 0.14% | 0.06% | 0.01% |
| Aug 2026 | 49.8% | 37.7% | 8.3% | 3.7% | 0.38% | 0.14% | 0.07% | 0.01% |
| Sep 2026 | 49.7% | 37.7% | 8.2% | 3.8% | 0.38% | 0.14% | 0.06% | 0.02% |
How has the Customer.io and OneSignal comparison changed over the last 12 months?
3 findings
- OneSignal was ahead of Customer.io 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 mobile marketing platforms worldwide moved from 8% to 8.2%, and its estimated monthly branded searches held steady at 12.3K.
- Across the 12 months ending September 2026, OneSignal’s share of searches among mobile marketing platforms worldwide moved from 39.6% to 37.7%, and its estimated monthly branded searches moved from 61.3K to 56.1K.
How did search popularity change for mobile marketing platforms worldwide in September 2026?
0 changes
Neither Customer.io nor OneSignal moved beyond provider rounding among mobile marketing platforms in September 2026.
How are branded searches counted?
12 search terms
Brandwave collects information about searches that people make online using Customer.io’s and OneSignal’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
OneSignal
6 branded search terms
- one signal
- one signal notifications
- OneSignal
- onesignal app
- onesignal push
- onesignal push notification
Other head-to-heads among mobile marketing platforms
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