Best for
Best for consumer brands with a serious mobile app, where wallet passes, in-app experiences and push carry the relationship and email is one channel among several.
- Small and mid-sized
- Enterprise
Email Marketing Comparison
At a glance
Best for
Best for consumer brands with a serious mobile app, where wallet passes, in-app experiences and push carry the relationship and email is one channel among several.
Best for
Best for product and growth teams running app-first lifecycle messaging, where push and in-app carry as much of the programme as email.
Cataleo does not name a winner. Both statements come from the vendors themselves.
| Criterion | Airship | OneSignal |
|---|---|---|
| Starting price | Not stated | Free plan, then from $19 / month The Growth platform fee, billed monthly. Messaging is metered on top: $0.012 per monthly active user for mobile push, $0.004 per web push subscriber and $1.50 per 1,000 email sends after the first 20,000 a month. Professional and Enterprise are annual contracts with quoted pricing and volume discounts. |
| Free trial | Not stated | Free plan across all channels, with 10,000 email sends a month and unlimited mobile push and in-app messaging for up to 1,000 monthly active users |
| Users | The vendor states thousands of global brands and more than 15 years in mobile messaging | The vendor states 200,000 apps, 1.5 billion monthly active users and 1.3 trillion messages sent a year |
| API | Yes, REST APIs, mobile and web SDKs and real-time data streaming, plus an open-source MCP server | Yes, unlimited API send access on every plan, SDKs for Android, iOS, Flutter, React Native, Expo and Unity, and a hosted MCP server in open beta |
| Hosting | Cloud (SaaS) | Cloud (SaaS) |
| Made in | United States | United States |
| Campaign types | Email for both promotional and transactional sends, mobile and web push notifications, SMS, RCS and MMS, mobile wallet passes, and native app and web experiences including scenes, surveys and preference centres | Email, mobile push, web push, in-app messaging, SMS and RCS, plus iOS Live Activities, all from the same dashboard |
| Automation and journeys | Journey orchestration that connects messaging, app and web experiences into one flow, built either in the no-code builder or conversationally through the Journeys AI Agent, with continuous testing and optimisation of timing, content and channel | Journeys, a visual drag-and-drop workflow builder with branching, cross-channel flows, webhook steps and unlimited message steps. Active journeys are capped by plan at 3 on Free, 5 on Growth and 20 on Professional, and are unlimited on Enterprise |
| Segmentation and personalisation | Real-time segmentation on behaviour, preferences and context, fed by customer data management that activates existing data and captures zero-party preferences through in-session surveys, forms and preference centres | Audience segments, data tags and custom events, with timezone delivery, dynamic content and personalised notifications on every plan and intelligent delivery, time-delayed sends and retargeting from Growth up. Segments and tags are capped by plan, from 6 of each on Free to unlimited on Enterprise |
| Templates and editor | Drag-and-drop email blocks with generative AI for content, plus the Native Experience AI Agent that builds app and web experiences from a text description or an image upload, and partner design workflows that export from Figma through Email Love or from EmailShepherd as content templates | No-code and HTML message builders, free prebuilt templates, a drag-and-drop email editor with full HTML control, and Liquid syntax for dynamic content |
| Deliverability and testing | Built-in previews and Litmus-powered inbox rendering tests, subject line tests and cross-channel control groups, with strategic services offered for migrations and deliverability optimisation | Email auto warm-up on every plan, plus A/B testing that is standard on Free and Growth and multivariate on the annual plans. Sending uses shared IPs on Free and Growth, with a dedicated IP available on Professional and Enterprise depending on volume |
| Ecommerce and CRM data | Integrations across analytics and attribution, customer data platforms, data warehouses and commerce, including Adobe Experience Platform, Salesforce Data Cloud, Segment, Tealium, Treasure Data, LiveRamp, Snowflake, Databricks, Google BigQuery, Amazon Redshift, Shopify, RevenueCat and Talon.One | More than 30 core integrations across analytics, CRM, customer data platforms and data warehouses, including Segment, HubSpot, Amplitude, Mixpanel, Adobe Experience Cloud, Snowflake, Google BigQuery, Databricks and RevenueCat, with premium integrations available for purchase on the annual plans |
| Integrations and API | Yes, REST APIs, mobile and web SDKs and real-time data streaming, plus an open-source MCP server that works with Claude Code, Claude Desktop and Cursor for querying channel data, sending test pushes, inspecting tags and attributes and running guided SDK migrations | Yes, unlimited API send access on every plan, SDKs for Android, iOS, Flutter, React Native, Expo and Unity, and a hosted MCP server in open beta that exposes messaging, users, segments, templates, exports and analytics to an outside AI assistant |
| AI features | Yes | Yes |
| MCP-ready | Yes | Yes |
| Deployment | Cloud (SaaS), Browser-based | Cloud (SaaS), Browser-based |
| Support | Email helpdesk, Phone, Community forum | Not stated |
| Onboarding | Documentation and knowledge base, Personal consulting | Documentation and knowledge base, Guided onboarding |
| Company size | Small and mid-sized, Enterprise | more entries Freelancers, Small and mid-sized, Enterprise |
| Integrations | more entries Adobe Experience Platform, Salesforce Data Cloud, Segment, Tealium, Treasure Data, LiveRamp, Snowflake, Databricks, Google BigQuery, Amazon Redshift, Shopify, RevenueCat, Talon.One, Adjust, Branch, Amplitude, Mixpanel, Adobe Analytics, Google Analytics, Movable Ink | Segment, HubSpot, Amplitude, Mixpanel, Adobe Experience Cloud, Snowflake, Google BigQuery, Databricks, RevenueCat, ActiveCampaign, Adjust, Adapty |
Adds a column to the table, from the tools in this category.
Row where the values differ The small markers point at the lower number, the longer list or the stated feature. They describe the data, they are not a verdict.
The short version
Every line is one datapoint from the table above, picked automatically. Nothing here is written text.
The trade-offs
Airship
Strengths
Limitations
OneSignal
Strengths
Limitations
Plans
Airship
OneSignal
What users say
Airship
No reviews yet. Nothing has been published here yet, and no score is shown. How a review is checked before it appears is described below.
OneSignal
No reviews yet. Nothing has been published here yet, and no score is shown. How a review is checked before it appears is described below.
Before sending, the author has to confirm three things: that they have used the product themselves, that they work neither for the vendor nor for a competitor, and that nobody is paying them for the review. We also ask whether the vendor invited them to write it. That answer is required, either answer is accepted, and it stays with the review.
Every review is read by a person before it appears. An email address is required and is confirmed: we send a link to it, and a review does not reach us until the author opens that link, so a review has a sender who was reachable at least once rather than being anonymous. Where what somebody writes needs backing, we ask them for evidence that they used the product, and a review that does not get it is not published. We publish positive and negative reviews alike, we pay nothing and offer nothing for a review, and we accept none that was bought or incentivised.
What we cannot do is verify a purchase. There is no shop here and no account, so whether the author really used the tool rests on their own declaration, on whatever we ask them for, and on the plausibility of what they write. We say so rather than implying a check that does not exist.
A vendor cannot buy a review, and cannot have one removed or changed because they dislike it. We remove or edit a review only if it breaks our rules or the law, for example a false statement of fact. Paid placement has no effect on which reviews appear or on any score.
Where this comes from
Airship https://www.airship.com · checked against the official source on 2026-09-24
OneSignal https://onesignal.com · checked against the official source on 2026-09-23
This table lists factual criteria taken from information the vendors publish themselves. For how we put it together, see the methodology.