Side by side
Constant Contact vs Klaviyo
Both stand on email automation. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free trial AndroidAPIiPhone+1
Choose Constant Contact if you want campaign tools, audience organization, and a choice of monthly send allowances. Look elsewhere if you need a free plan, more than 500 contacts, or published plan pricing before choosing.
Visit Constant Contact Free plan Web
Klaviyo combines marketing channels, automation, and customer support tools in a web platform. Its free plan has defined usage limits, and sending can be restricted if those limits are exceeded.
Visit KlaviyoThe facts
| Constant Contact | Klaviyo | |
|---|---|---|
| Free plan | A free trial | Yes |
| Open source | No | Not published |
| Runs on | Android, API, iPhone, Web | Web |
| Lowest paid plan | Lite: $12 a month | Free or on request |
| Plans published | 3 | 4 |
| Maker | Constant Contact | Klaviyo |
| Website | constantcontact.com | klaviyo.com |
| On email automation | #12 of 23 | #8 of 23 |
Constant Contact: what it does well
- Includes email automation, audience segmentation, landing pages, and A/B testing.
- Offers 300 native integrations.
- Runs on web and Android.
- Premium allows unlimited users.
- Includes a 30-day trial.
What to know first
- No free plan is available.
- Plans are limited to 500 contacts.
Klaviyo: what it does well
- Supports email, SMS, RCS, push, WhatsApp, and social marketing.
- Includes automation, segmentation, landing pages, and A/B testing.
- Free plan can remain available indefinitely within limits.
- Marketplace offers more than 350 integrations.
- Provides GDPR-related tools and EU and US data residency.
What to know first
- Free plan allows up to 250 active profiles.
- Free plan includes 500 email sends per month.
- Full email support for free users lasts 60 days.
- Sending may be restricted when free-plan limits are exceeded.
Alternatives to Constant Contact Alternatives to Klaviyo The whole list

