Constant Contact vs OneSignal: Complete Comparison (2026)
An in-depth comparison of Constant Contact and OneSignal to help you choose the right tool for your business.
Last updated: November 2026
Constant Contact
5.8/10
Email and SMS marketing platform with event registration, sign-up forms and basic automation, aimed at small businesses and nonprofits that want live support.
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.
Feature-by-Feature Comparison
| Feature | | |
|---|---|---|
| Scores | ||
| Overall Rating | 5.8/10 | 7.1/10 |
| Scalability | 5/10 | 8/10 |
| Ease of Use | 8/10 | 8/10 |
| Customization | 5/10 | 6/10 |
| Security | 6/10 | 7/10 |
| Support | 8/10 | 6/10 |
| Cost | 4/10 | 7/10 |
| Integration | 6/10 | 8/10 |
| Analytics | 5/10 | 6/10 |
| Pricing | ||
| Free plan | No | Yes |
| Cheapest paid plan | $12/mo Lite | $19/mo Growth |
| Estimated cost for 10 users | $80/mo Premium | Free Free |
| Features | ||
| A/B Testing | ||
| Email Marketing | ||
| Segmentation | ||
| SMS Marketing | ||
| E-commerce Features | Not listed | |
| Landing Pages | Not listed | |
Constant Contact vs OneSignal cost by team size
OneSignal costs less at every team size we checked.
| Team size | Constant Contact | OneSignal |
|---|---|---|
| 1 user | $12/moLite | FreeFree |
| 5 users | $80/moPremium | FreeFree |
| 10 users | $80/moPremium | FreeFree |
| 25 users | $80/moPremium | FreeFree |
| 50 users | $80/moPremium | FreeFree |
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 Constant Contact
- Higher Support score (8/10 vs 6/10)
- Better fit for small business (9/10 vs 7/10)
Why choose OneSignal
- Has a free plan (Constant Contact does not)
- Lower estimated cost for 10 users: Free vs $80/mo
- Higher Scalability score (8/10 vs 5/10)
- Higher Cost score (7/10 vs 4/10)
- Better fit for enterprise (7/10 vs 3/10)
Pros & Cons
Constant Contact
Pros
- Live phone and chat support plus one-to-one onboarding are included from the cheapest Lite plan.
- Event registration, ticketing and payment collection are built into every plan, so small organisations do not need a separate events tool.
- The drag-and-drop editor and templates suit non-marketers who need to send newsletters quickly.
- Nonprofits can save up to 30 percent by prepaying for a year.
Cons
- Prices climb steeply with list size, reaching about 160 dollars a month for Standard at 10,000 contacts.
- Custom and ecommerce automations are only on Premium. The lower plans get one or three prebuilt paths.
- A/B testing is limited to subject lines.
- The free plan was removed, and reviewers report billing and cancellation complaints.
- Reviewers describe the interface as dated and needing more clicks than newer competitors.
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.
Not sold on either?
Frequently Asked Questions
OneSignal scores higher on our Marketing criteria: 7.1/10 against 5.8/10 for Constant Contact. The largest gap is in Cost: 4/10 for Constant Contact and 7/10 for OneSignal.
OneSignal costs less for 10 users: free on its Free plan, against about $80/mo on its Premium plan for Constant Contact, billed monthly.
OneSignal has a free plan; Constant Contact does not list one.
OneSignal is the better fit for enterprise: we rate it 7/10 for them, against 3/10 for Constant Contact.
