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In-app messaging and customer communications · September 2026 Edition

OneSignal vs Customer.io

Zero of twelve models named OneSignal first on the direct prompt; one named Customer.io. OneSignal was named by twelve of the twelve models and Customer.io by ten and OneSignal carries 28 labels and Customer.io 16, so the shares are not directly comparable.

OneSignal

accepted challenger

By Q140701571, San Mateo, United States, founded 2011. Named in three categories this edition.

Customer.io

accepted challenger

Named in seven categories this edition.

First-choice share11%5%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate14%6%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#3#4A position in a field of 15; printed, not drawn.
Labels2816A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, OneSignal reading right to left. Rank and label count are printed, not drawn.Userpilot was named alongside these two in ten of the twelve direct answers. Intercom vs OneSignal · Intercom vs Customer.io · Userpilot vs OneSignal

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all twelve models, for a mid-market B2B company; rank is within the category; every quote names the model and the prompt it came from. Both figures come from the in-app messaging and customer communications page.

By framing

How many of the twelve models made each the first choice, per way of asking, and how many argued against it.
OneSignalFirst choices, of twelve modelsCustomer.io
Direct01
Paraphrase01
Comparative00
Budget-constrained501 against OneSignal
Scale-constrained001 against OneSignal
Negative002 against OneSignal · 1 against Customer.io
Bars are first choices, 0 to 12 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to twelve.

Across every category in the September 2026 Edition, OneSignal and Customer.io were named in the same answer seventy-three times, of the 314 answers naming OneSignal and the 187 naming Customer.io. In those answers Customer.io took the first choice seventeen times and OneSignal twenty-three.

Every model, every framing

The seventy-two answers behind the chart above, one cell each: where OneSignal and Customer.io stood in it.
ModelDirectParaphraseComparativeBudget-constrainedScale-constrainedNegative
Claude Haiku 4.5
GPT-5.4 mini
Gemini 3.5 Flash
Perplexity Sonar
Grok 4.1 Fast
Mistral Small
DeepSeek V4 Flash
Llama 4 Maverick
Qwen 3.7 Flash
Kimi K2
GLM 4.7 FlashX
MiniMax M2.5
OneSignal Customer.io first choice named as an alternative argued againstblank: not namedEach cell is one answer, OneSignal on the left and Customer.io on the right.

The direct prompt

The plain question, one answer per model, grouped by where OneSignal and Customer.io stood in it.

Customer.io first, OneSignal not the choice

1 of 12 modelsOneSignal was named in the answer but not as the choice, or not at all.
Gemini 3.5 FlashCustomer.io, Gleap, Userpilot alternatives: Front, Userflow

Neither was the first choice, one was named

2 of 12 modelsThe answer put something else first and named one of the two as an alternative.
Claude Haiku 4.5Intercom alternatives: Customer.io, Product Fruits, Userpilot
MiniMax M2.5Product Fruits, Userpilot alternatives: Appcues, Customer.io, Intercom, Pendo

Neither was named

9 of 12 modelsThe answer made no first choice from these two in this category.
GPT-5.4 miniAppcues alternatives: Intercom, Pendo, Userpilot
Perplexity SonarIntercom alternatives: Appcues, Userpilot
Grok 4.1 FastStream Chat alternatives: CometChat, Intercom
Mistral SmallUserpilot alternatives: Intercom, Product Fruits
DeepSeek V4 FlashIntercom alternatives: Appcues, Chameleon, Gleap, Userpilot
Llama 4 Maverickno first choice
Qwen 3.7 FlashIntercom, Product Fruits alternatives: Appcues, Userpilot
Kimi K2Userpilot alternatives: Appcues, Pendo
GLM 4.7 FlashXUserpilot alternatives: Appcues, Intercom, Product Fruits, UserGuiding

Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.

By buyer segment

The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
OneSignal leads by fifteen points.
OneSignal17%#1 of 12
Customer.io2%#10 of 12
The full small business standing →
Mid-marketThe figures above
OneSignal leads by seven points.
OneSignal11%#3 of 15
Customer.io5%#4 of 15
The full mid-market standing →
Enterprise
OneSignal leads by four points.
OneSignal4%#6 of 13
Customer.io0%#– of 13
The full enterprise standing →

What the models said about OneSignal

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. One of one in this category shown.

“Platforms Requiring Caution ... However, generally considered more secure than the platforms above” Kimi K2 · negative prompt · soft negative

What the models said about Customer.io

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. One of one in this category shown.

“Can be overkill compared with PLG-focused tools” Perplexity Sonar · negative prompt · soft negative
Also compared
Intercom vs OneSignalIntercom vs Customer.ioUserpilot vs OneSignalUserpilot vs Customer.ioOneSignal vs Product FruitsOneSignal vs PushwooshOneSignal vs AppcuesOneSignal vs PendoCustomer.io vs Product FruitsCustomer.io vs PushwooshCustomer.io vs AppcuesCustomer.io vs PendoAll twenty-eight head-to-head pages and the full in-app messaging standing

Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.