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.
- Freelancers
- Small and mid-sized
- Enterprise
Email Marketing Comparison
OneSignal vs. rapidmail
At a glance
At a glance
Best for
Best for German small businesses, shops and agencies that send their own newsletters and want servers in Germany.
- Freelancers
- Small and mid-sized
Cataleo does not name a winner. Both statements come from the vendors themselves.
Full Comparison
| Criterion | OneSignal | rapidmail |
|---|---|---|
| Starting price | 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. | From €15 / month plus VAT Essential plan for 500 contacts, billed monthly by the number of contacts in the account. Performance starts at €25 and Unlimited at €35 for 500 contacts. Pay per send costs €20 for a mailing to 500 recipients, with no contract term. |
| Free trial | 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 | On pay per send, the first mailing to up to 2,000 recipients is free, and mailings to at most 10 recipients cost nothing |
| Users | The vendor states 200,000 apps, 1.5 billion monthly active users and 1.3 trillion messages sent a year | Over 250,000 companies, associations and agencies, per the vendor |
| API | 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 | Yes, the rapidmail API on every plan |
| Languages | Not stated | German and English support |
| Hosting | Cloud (SaaS) | Cloud (SaaS), servers in Germany |
| Made in | United States | Germany (Freiburg) |
| Campaign types | Email, mobile push, web push, in-app messaging, SMS and RCS, plus iOS Live Activities, all from the same dashboard | Newsletters, follow-up mailings and automated email workflows; transactional emails over SMTP on request |
| Automation and journeys | 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 | Workflows from any number of emails triggered by a sign-up, recipient activity or a date, with waiting times, if/then branches and templates for welcome, birthday, reminder and reactivation emails; one automation on pay per send and Essential, five on Performance, unlimited on Unlimited |
| Segmentation and personalisation | 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 | Segmentation, personalisation, tagging and interest selection at sign-up, with automatic double opt-in; 3 recipient lists on pay per send and Essential, 10 on Performance, unlimited on Unlimited |
| Templates and editor | 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 | Drag-and-drop editor with over 250 design templates, an image editor and image library, and your own HTML templates; one-click design on Performance and Unlimited |
| Deliverability and testing | 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 | DKIM and SPF, a spam test before each send, a subject line check and rendering tests at €5 each; A/B testing and scheduled sending on Performance and Unlimited, and a dedicated IP on request. rapidmail states it is a member of the Certified Senders Alliance and certified by ISIPP SuretyMail |
| Ecommerce and CRM data | 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 | Shop plugins for Shopware 5 and 6 and WooCommerce that sync customer and product data, with one-click product import into a mailing; shop connection is not part of pay per send |
| Integrations and API | 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 | The rapidmail API on every plan for connecting further systems, plus the Shopware and WooCommerce plugins |
| AI features | stated Yes | No |
| MCP-ready | stated Yes | No |
| Deployment | Cloud (SaaS), Browser-based | Cloud (SaaS), Browser-based |
| Support | Not stated | Email helpdesk, Phone |
| Onboarding | Documentation and knowledge base, Guided onboarding | more entries Documentation and knowledge base, Video tutorials, Live online demos and webinars |
| Company size | more entries Freelancers, Small and mid-sized, Enterprise | Freelancers, Small and mid-sized |
| Integrations | more entries Segment, HubSpot, Amplitude, Mixpanel, Adobe Experience Cloud, Snowflake, Google BigQuery, Databricks, RevenueCat, ActiveCampaign, Adjust, Adapty | Shopware 5, Shopware 6, WooCommerce, Google Analytics |
Add a tool
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
Key Differences
- Starting price OneSignal Free plan, then from $19 / month rapidmail From €15 / month plus VAT
- Free trial OneSignal 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 rapidmail On pay per send, the first mailing to up to 2,000 recipients is free, and mailings to at most 10 recipients cost nothing
- Company size OneSignal Freelancers, Small and mid-sized, Enterprise rapidmail Freelancers, Small and mid-sized
- Hosting OneSignal Cloud (SaaS) rapidmail Cloud (SaaS), servers in Germany
- Made in OneSignal United States rapidmail Germany (Freiburg)
Every line is one datapoint from the table above, picked automatically. Nothing here is written text.
The trade-offs
Strengths and Limitations
OneSignal
Strengths
- The free plan carries every channel, including unlimited mobile push for up to 1,000 monthly active users
- Unlimited contacts and unlimited API send access on every plan, the free one included
- Push, in-app, email, SMS and RCS run on one platform, so a lifecycle programme does not span two vendors
- Official SDKs for Android, iOS, Flutter, React Native, Expo and Unity
- A hosted MCP server lets an outside AI assistant query analytics and operate campaigns
Limitations
- Active journeys, audience segments and data tags are all capped below the Enterprise plan
- Frequency capping, conversion metrics and CSV exports start on the annual Professional plan
- Cost follows monthly active users and send volume, so a large but lightly engaged audience gets expensive
- Dedicated sending IPs are limited to the annual plans and depend on volume
- Professional and Enterprise pricing is quoted rather than published
rapidmail
Strengths
- Pay per send has no contract term for senders who mail only occasionally
- Servers in Germany and automatic double opt-in on every plan
- Phone, email and ticket support on every plan, in German and English
- API access is included from the pay per send plan up
Limitations
- A/B testing and scheduled sending start on Performance
- Essential allows one automation, three recipient lists and no further users
- Rendering tests cost €5 each on every plan
- Shop plugins cover Shopware and WooCommerce; other systems need the API
Plans
Pricing
OneSignal
- Free $0 Per month. All channels, basic automation, analytics and personalisation, OneSignal AI and the MCP server, 10,000 email sends a month, unlimited mobile push and in-app messaging for up to 1,000 monthly active users, 3 active journeys and 6 audience segments.
- Growth $19 Per month, starting price. Adds more automation, more integrations, prioritised support and better analytics and personalisation. 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.
- Professional Not stated Annual contract, quoted, with volume discounts. Adds advanced marketing and analytics, all integrations, advanced experiments, advanced permission management, 20 active journeys and reporting history up to a year.
- Enterprise Not stated Annual contract, quoted. Adds unlimited personalisation, reporting history up to two years, a security and compliance package, a custom SLA and a dedicated success manager.
rapidmail
- Pay per send €20 Per mailing to 500 recipients, €30 for 1,000, plus VAT. No contract term; first mailing to up to 2,000 recipients free. One automation, three lists, three sender addresses.
- Essential €15 Per month for 500 contacts, €20 for 1,000, plus VAT. Follow-up mailings and shop connection, one automation, three lists, one user.
- Performance €25 Per month for 500 contacts, €33 for 1,000, plus VAT. A/B testing, scheduled sending, five automations, two additional users, premium support and deliverability advice.
- Unlimited €35 Per month for 500 contacts, €47 for 1,000, plus VAT. Unlimited automations, lists, sender addresses, domains and users.
What users say
Review Scores · opens after launch
OneSignal
- Ease of use
- Not rated yet
- User interface
- Not rated yet
- Onboarding
- Not rated yet
- Support and service
- Not rated yet
- Value for money
- Not rated yet
- Features
- Not rated yet
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.
rapidmail
- Ease of use
- Not rated yet
- User interface
- Not rated yet
- Onboarding
- Not rated yet
- Support and service
- Not rated yet
- Value for money
- Not rated yet
- Features
- Not rated yet
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.
How we check reviews
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Where this comes from
Where this comes from
OneSignal https://onesignal.com · checked against the official source on 2026-09-23
rapidmail https://www.rapidmail.de/ · checked against the official source on 2026-10-29
This table lists factual criteria taken from information the vendors publish themselves. For how we put it together, see the methodology.