OneSignal vs Selzy: Complete Comparison (2026)
An in-depth comparison of OneSignal and Selzy to help you choose the right tool for your business.
Last updated: November 2026
OneSignal
7.1/10
OneSignal is a customer messaging platform for sending mobile push, web push, in-app messages, email and SMS to app and website users.
Selzy
6.3/10
Selzy is an email marketing platform for small businesses and beginners, with a drag-and-drop builder, automation, segmentation, A/B testing, and SMS and landing page add-ons.
Feature-by-Feature Comparison
| Feature | | |
|---|---|---|
| Scores | ||
| Overall Rating | 7.1/10 | 6.3/10 |
| Analytics | 6/10 | 5/10 |
| Cost | 7/10 | 8/10 |
| Customization | 6/10 | 6/10 |
| Ease of Use | 8/10 | 8/10 |
| Integration | 8/10 | 4/10 |
| Scalability | 8/10 | 6/10 |
| Security | 7/10 | 5/10 |
| Support | 6/10 | 7/10 |
| Pricing | ||
| Free plan | Yes | Yes |
| Cheapest paid plan | $19/mo Growth | Contact for pricing |
| Estimated cost for 10 users | Free Free | Contact for pricing |
| Features | ||
| A/B Testing | ||
| Email Marketing | ||
| Segmentation | ||
| SMS Marketing | ||
| Landing Pages | Not listed | |
OneSignal vs Selzy cost by team size
OneSignal and Selzy cost the same at 1 user.
| Team size | OneSignal | Selzy |
|---|---|---|
| 1 user | FreeFree | FreeFree |
| 5 users | FreeFree | Contact for pricing |
| 10 users | FreeFree | Contact for pricing |
| 25 users | FreeFree | Contact for pricing |
| 50 users | FreeFree | Contact for pricing |
The plan that fits each team size, billed monthly, before add-ons and usage charges. Each cost opens that tool's pricing calculator for the team size.
Which One Should You Choose?
Why choose OneSignal
- Higher Integration score (8/10 vs 4/10)
- Higher Scalability score (8/10 vs 6/10)
- Better fit for enterprise (7/10 vs 4/10)
- Better fit for mid-market (7/10 vs 4/10)
Why choose Selzy
- Higher Cost score (8/10 vs 7/10)
- Higher Support score (7/10 vs 6/10)
- Better fit for small business (9/10 vs 7/10)
Pros & Cons
OneSignal
Pros
- A free plan with unlimited push up to 1,000 MAU and 10,000 emails a month makes it cheap to start.
- Push, in-app, email and SMS run from one platform with cross-channel journeys.
- Reviewers on G2 and PeerSpot say the dashboard is easy for non-technical marketers to use.
- A broad integration catalog covers CDPs such as Segment, RudderStack and Hightouch, data warehouses, and analytics tools.
Cons
- PeerSpot reviewers call it expensive for large subscriber bases.
- Free and Growth plans cap segments at 6 and 10, and reporting history at 30 and 90 days.
- SMS pricing is not published and requires a sales conversation.
- Reviewers mention unclear documentation for advanced cases and limited in-app design options.
Selzy
Pros
- The Free plan includes automation, forms, and analytics for up to 100 contacts.
- Every plan includes unlimited emails, with pricing based only on contact count.
- Prepaid email packages suit senders with irregular volumes.
- Capterra reviewers praise the drag-and-drop builder and the variety of templates.
- The built-in quality checker reviews spam risk, authentication, and subject lines before sending.
Cons
- Some reviewers mention limited integrations and reporting options.
- Some reviewers say the drag-and-drop editor occasionally misbehaves.
- The Free and Lite plans allow only one user.
- Integrations and dedicated IPs cost extra.
Not sold on either?
Frequently Asked Questions
OneSignal scores higher on our Marketing criteria: 7.1/10 against 6.3/10 for Selzy. The largest gap is in Integration: 8/10 for OneSignal and 4/10 for Selzy.
Yes, both OneSignal and Selzy have a free plan.
OneSignal is the better fit for enterprise: we rate it 7/10 for them, against 4/10 for Selzy.
