OneSignal review

OneSignal started as a push notification service and now covers mobile push, web push, in-app messages, email, SMS and RCS. The free plan gives access to all channels with basic automation, analytics and personalization, which makes it an easy way to start. Growth costs $19 per month as a platform fee, with usage on top: mobile push is $0.012 per monthly active user, web push is $0.004 per subscriber, and email includes 20,000 free sends a month before $1.50 per 1,000. Growth also raises limits to five active flows, 10 segments and 10 data tags, and adds Mixpanel, Amplitude, Segment and HubSpot integrations. Contacts are unlimited on every plan. The caps matter for lifecycle teams with many programs, since unlimited segments and flows only arrive on Enterprise. Professional and Enterprise are custom priced. Teams that need deep data modeling or warehouse segmentation will get more from Customer.io or Braze.

Who it is for

App and web teams that want push-first engagement with a free start and published usage rates.

Price

Free plan; Growth from $19 per month plus usage, such as $0.012 per monthly active user for mobile push.

Growth Starts at $19/mo For small teams optimizing growth
Quoted from the vendor pricing page on November 7, 2026.

Key features

• Mobile push, web push, in-app messages, email, SMS and RCS from one dashboard
• Visual workflow builder with branching cross-channel flows and webhook steps
• Unlimited contacts on every plan
• Timezone delivery, intelligent delivery and push and SMS retargeting
• Integrations with Mixpanel, Amplitude, Segment and HubSpot from Growth

Strengths and weaknesses

• Strength: Permanent free plan with access to all channels
• Strength: Low $19 platform fee on Growth with published per-unit rates
• Strength: Unlimited contacts on every tier
• Weakness: Growth caps active flows at 5 and segments at 10
• Weakness: Mobile push on Growth is billed per monthly active user
• Weakness: Premium integrations such as Snowflake cost extra

Key facts

• Free plan: Yes, all channels with basic automation
• Growth platform fee: $19 per month
• Mobile push on Growth: $0.012 per monthly active user
• Email on Growth: 20,000 free sends a month, then $1.50 per 1,000

Where it ranks

OneSignal is No. 2 in our Best Customer Engagement Platforms verdict.