About OneSignal
OneSignal is an SMS & Push tool that app developers and mobile marketers rely on day-to-day. The strengths show up in two places — famously generous free tier (10K web subscribers), and multi-channel in one platform. The things you'll actually touch most days are Push notifications and In-app messaging. There's a genuinely free plan to start, with paid upgrades for teams that outgrow it. The default push notification platform. Reviewers keep pointing to the same thing: Developer-friendly SDKs.
Available on
Integrates with
Who it's for
A quick filter before you spend time on OneSignal — read both sides before committing.
Use it if…
- App developers wanting free push
- Mobile marketers at scale
- Companies needing cross-channel engagement
Skip it if…
- Teams needing marketing-first email (Mailchimp wins)
- Pure SMB SMS (SimpleTexting wins)
- Brands wanting dedicated success teams
Pros and cons
Pros
- Famously generous free tier (10K web subscribers)
- Multi-channel in one platform
- Developer-friendly SDKs
- Hits the core SMS & push workflow without forcing a hunt for second tools
- Pricing lands in the right band for its target buyer
Cons
- Advanced features behind higher plans
- UX feels engineering-first
- Pricing scales with contacts
- Not the cheapest option in the category — the free alternatives cover basics
- Advanced features sit behind higher-tier plans most small teams won't need
Features
The capabilities you actually get when you sign up for OneSignal.
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01
Push notifications
Web + iOS + Android push at scale
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02
In-app messaging
Native in-app engagement
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03
SMS + email
Multi-channel from one platform
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04
Core workspace
The main editor or dashboard where day-to-day SMS & push work happens
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05
Integrations hub
Connects to the tools your stack already uses so data doesn't live in silos
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06
Reporting and dashboards
Built-in reports and exportable dashboards for stakeholder reviews
Pricing
A free plan to start, then paid tiers for the full set of features.
Free
$0
- 10K web
- unlimited mobile subs
Growth
$9 /mo
- 30K mobile subs
Frequently asked questions
What people usually want to know before signing up for OneSignal.
Is OneSignal really free?
Yes, up to 10K web subscribers + unlimited mobile. Enterprise features are paid.
Does OneSignal support rich push?
Yes — images, buttons, action buttons.
What's a safe opt-in flow in the US?
Double opt-in with explicit SMS language. 'By submitting, you agree to receive marketing texts…' with STOP + HELP instructions in the first message.
How does TCPA affect pricing and strategy?
TCPA violations run $500–$1,500 per message. Any shortcut on consent is a strategic risk, not a growth lever.
Is RCS worth prioritizing?
In the US, RCS is finally viable on Android — iOS 18 brought partial support in late 2024. Treat as a 2026 win for brands with a technical team.
Bottom line
Should you use OneSignal?
The default push notification platform. Marketing-first teams should look at Iterable or Braze for broader multi-channel orchestration.