AI Indexes
GTM AI Index
September 2026 Edition, expanded tier · The six flagship models on every category, as published September 9, 2026. The public index runs on the standard tier; this record is what the Expanded Edition Pack delivers on one category. The category page →
Index › Marketing › September 2026 Edition

Mobile marketing and push

Asked as “mobile push notification and SMS marketing platform”, and as “push and SMS messaging tool”, on behalf of a mid-market B2B software company. 53 first choices recorded across the direct, paraphrase, budget and scale prompts, six models each.
Standing · first-choice share
45%
Clear leader
45OneSignal19Customer.io09Braze26others

45% of first choices, clear leader.

Since September 2026▲+11Since September 2026: 34% → 45%, +11 points. Inside the 12-point floor: within noise. Read over the models both editions asked.OneSignal held the lead, +11 points on 34%, inside the 12-point floor.
ShowinginAll 112 categories in the September 2026 Edition →

The standing

Share is the count of first choices across the direct, paraphrase, budget and scale prompts, over all six models, for a mid-market B2B software company. Ordered by share.
ProductFirst-choice shareNegative rateLabelsQuadrantSince September 2026
01OneSignal45%5%62endorsed leader▲+11Since September 2026: 34% → 45%, +11 points. Inside the 12-point floor: within noise. Read over the models both editions asked.34% → 45%
02Customer.io19%0%23accepted challenger▼−17Since September 2026: 34% → 17%, −17 points. Past the 12-point floor: movement. Read over the models both editions asked.34% → 17%
03Braze9%26%47criticized challenger▲+6Since September 2026: 4% → 11%, +6 points. Inside the 12-point floor: within noise. Read over the models both editions asked.4% → 11%
04Pushwoosh6%7%14accepted challenger▲+6Since September 2026: 0% → 6%, +6 points. Inside the 12-point floor: within noise. Read over the models both editions asked.0% → 6%
05Omnisend4%8%12accepted challenger=heldSince September 2026: 4% → 4%, ±0 points. Inside the 12-point floor: within noise. Read over the models both editions asked.4% → 4%
06Klaviyo2%21%28accepted challenger▲+2Since September 2026: 0% → 2%, +2 points. Inside the 12-point floor: within noise. Read over the models both editions asked.0% → 2%
07Twilio Programmable Messaging2%25%28criticized challenger▲+2Since September 2026: 0% → 2%, +2 points. Inside the 12-point floor: within noise. Read over the models both editions asked.0% → 2%
08Airship2%24%29accepted challenger▲+2Since September 2026: 0% → 2%, +2 points. Inside the 12-point floor: within noise. Read over the models both editions asked.0% → 2%
09SendPulse2%8%13accepted challenger=heldSince September 2026: 2% → 2%, ±0 points. Inside the 12-point floor: within noise. Read over the models both editions asked.2% → 2%
Show the five products at 0%, ordered by negative rate
14Postscript0%27%11criticized challenger=heldSince September 2026: 0% → 0%, ±0 points. Inside the 12-point floor: within noise. Read over the models both editions asked.0% → 0%
12Attentive0%24%25accepted challenger=heldSince September 2026: 0% → 0%, ±0 points. Inside the 12-point floor: within noise. Read over the models both editions asked.0% → 0%
13SimpleTexting0%20%10accepted challenger=heldSince September 2026: 0% → 0%, ±0 points. Inside the 12-point floor: within noise. Read over the models both editions asked.0% → 0%
11Iterable0%17%24accepted challenger=heldSince September 2026: 0% → 0%, ±0 points. Inside the 12-point floor: within noise. Read over the models both editions asked.0% → 0%
10CleverTap0%0%11accepted challenger▼−2Since September 2026: 2% → 0%, −2 points. Inside the 12-point floor: within noise. Read over the models both editions asked.2% → 0%

The floor is 12 points of share, measured: how far the models move a leader on their own when the same questions are asked twice with nothing changed. A larger change is movement; a smaller one is noise, and both are shown. How the floor is measured

Bars are the share of first choices, 0 to 100Every product with at least 10 labels here. Every product name links to its product page.
All fifteen head-to-head pages: the top six products, each against each

Recommended versus criticized

Every product with at least 10 labels here, on both axes. The 30% line names a quadrant, not the verdict above: that one needs more than 40%.

Criticized challengerCriticized default
Negative label rate →
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Accepted challengerEndorsed leader
0%First-choice share → · lines at 30% share and 25% negative60%
Key
01OneSignal45%
02Customer.io19%
03Braze9%
04Pushwoosh6%
05Omnisend4%
06Klaviyo2%
07Twilio Programmable Messaging2%
08Airship2%
09SendPulse2%
10CleverTap0%
11Iterable0%
12Attentive0%
13SimpleTexting0%
14Postscript0%

What they warned about

A high negative share on a product with few labels is a warning. A low share on a product with many labels is salience, not sentiment.
Braze
26%
12 of 47 labels negative · 9 of 6 models · 5 hard negative
“Several reviewers explicitly advise avoiding Braze unless you are pushing toward enterprise scale.” Mistral Small, negative prompt
Airship
24%
7 of 29 labels negative · 6 of 6 models · 2 hard negative
“**Avoid** Braze and Airship unless you have enterprise-level budgets” DeepSeek V4 Flash, paraphrase prompt
Twilio Programmable Messaging
25%
7 of 28 labels negative · 6 of 6 models
“Be Cautious of Developer-First CPaaS Engines if You Lack Engineering Support... Avoid If: You are a marketer or small business owner with no coding experience.” Gemini 3.5 Flash, negative prompt
Attentive
24%
6 of 25 labels negative · 5 of 6 models · 1 hard negative
“Why we recommend avoiding Enterprise B2C options (like Braze or Attentive) for Mid-Market B2B” Gemini 3.5 Flash, direct prompt

What they cite

Citations exist only for the models that return a source list: fourteen of the six in this edition.

Sites the answers cite

77 of 84 answers in this category came back with a source list, from 14 of 6 models: citations where the model returns them, or the search results it consulted. 1202 links across 267 sites, every framing counted. Ranked by the number of answers carrying the site or page. None of the 36 answers across every segment cited this index's own page for the category.

vendor site · Courier42 answers · 54 citations · 12 models
vendor site · Viasocket40 answers · 70 citations · 12 models
vendor site · OneSignal39 answers · 68 citations · 12 models
vendor site · Guideflow32 answers · 36 citations · 12 models
31 answers · 31 citations · 12 models
vendor site · Attentive30 answers · 31 citations · 12 models
vendor site · Pushwoosh23 answers · 39 citations · 9 models
22 answers · 24 citations · 10 models
vendor site · Vibes21 answers · 21 citations · 11 models
vendor site · EngageLab20 answers · 24 citations · 10 models
18 answers · 30 citations · 9 models
18 answers · 19 citations · 7 models

Pages the answers cite

The ten pages named in the most answers, by full address. A page here is one the models returned with a recommendation, not one the index endorses.

Search against answers

Each company's standing in the answers beside its site's footprint in Google search, one row a site: the products the models named on it with their shares, and the share they add up to; monthly searches on Google, and DataForSEO's estimate of AI search demand (modeled from search signals, directional, not a count of queries to any assistant), for the most-searched of the company's and its products' names (the name is in each row's hover text); estimated monthly organic visits to the site; and its best position in Google's top ten for “best mobile push notification and sms marketing platform”. US estimates from DataForSEO and Google's Ads Transparency Center. A small company's site, or a mid-sized company's site for its flagship, is marked company; a product on a large parent's site (Google, Microsoft) has no site figures. A column with no figures for this category is left out, and an empty cell means none were seen, not none exist. Two measurements side by side: neither is read as the cause of the other.
Company and productsShareOwn site citedName searches, GoogleAI search demand, est.Organic visitsPaid search a month, est.Google ads, last 30 daysBest Google position
OneSignal onesignal.com45%3304,40013329,72638
Customer.io customer.io
Customer.io 19%, Customer.io Journeys 2%
21%1872,90017415,750$6,920112
Braze braze.com9%50527,1006,39555,552$13,11259
Pushwoosh pushwoosh.com6%5317044,4631
Omnisend omnisend.com4%1859,90010851,545$11366
Klaviyo klaviyo.com2%35390,5001,560200,057$572207
Twilio parent site
Twilio Programmable Messaging 2%
2%80135,0004,343
Airship airship.com2%18422,2003,09323,0067
SendPulse sendpulse.com2%511,6001921,8958
WonderPush wonderpush.com2%14

Google's top ten for the one searches hold 9 sites; 2 of them are among the sites the models cited here (courier.com, learn.g2.com). The first result for “best mobile push notification and sms marketing platform” is courier.com.

How they answered

Six framings of the same buying question, each sent to every model in a fresh session with search on. One row per model, so a row shows whether it held its answer under rewording, what it named when cost was the constraint, and what it argued against. Computed from the raw judge labels.
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ModelDirect“What is the best mobile push notification and SMS marketing platform for a mid-market B2B company?”Paraphrase“Which push and SMS messaging tool would you recommend to a mid-sized B2B company?”Comparative“What are the top mobile push and SMS marketing platforms and how do they differ?”Budget-constrained“What is the best mobile push notification and SMS marketing platform for a company with a limited budget?”Scale-constrained“We are a 500 person company evaluating a mobile push notification and SMS marketing platform. What should we look at?”Negative“Which mobile push and SMS marketing platforms should I avoid or be cautious about?”
Claude Opus 5no first choiceno first choiceno first choiceno first choiceno first choicenothing named
Claude Opus 4.8no first choiceno first choiceno first choiceno first choiceno first choicenothing named
GPT-6 Astrano first choiceno first choiceno first choiceno first choiceno first choicenothing named
GPT-5.6 Solno first choiceno first choiceno first choiceno first choiceno first choicenothing named
Gemini 3.1 Prono first choiceno first choiceno first choiceno first choiceno first choicenothing named
Perplexity Sonar Prono first choiceno first choiceno first choiceno first choiceno first choicenothing named
Bold is the first choiceAlternatives are counted; the count opens them.What the answer argued against

The record

One row per call: the version string exactly as returned, whether the model searched, sources cited, and latency. Full answer text is in the free responses file. Download the record
Zero rows: every prompt, every model, every answer.
PromptModelVersion stringTime (UTC)SearchedSourcesLatency

Normalization in this category

Every judgment call made between the raw labels and the numbers above, listed so it is visible and reversible.

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Category-scoped readings
Sinch read as Sinch
Twilio read as Twilio Programmable Messaging
Twilio (Notify + SMS API) read as Twilio Programmable Messaging
Unresolved, counted raw
Adobe/Marketo
MOBtexting
Mailcon
Novu
PushAssist
SMS/Global
SMS8
Salesforce
Selligent
Sin
Sinch Engagement
SlickTexting
Urbanite
Vonage (Nexmo) Messages API
Discontinued, still offered
No shut-down product was recommended here.
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