Last updated: November 13, 2026
Braze is the top customer engagement platform for large consumer brands in 2027, Klaviyo leads ecommerce, Customer.io is the favorite of SaaS teams and Iterable offers the most marketer-friendly flexibility. MoEngage and CleverTap are the strongest choices for mobile-first apps.
Engagement software uses behavior data to send the right message on the right channel at the right moment. The biggest difference between vendors is how quickly they react to what a customer just did.
Customer Engagement Software To Use In 2027
| Platform | Best For | Core Strength | Category |
|---|---|---|---|
| Braze | Enterprise consumer brands | Real-time cross-channel journeys | Engagement platform |
| Klaviyo | Ecommerce stores | Deep store data and revenue flows | Ecommerce engagement |
| Iterable | Growth-stage and enterprise marketers | Flexible data with AI optimization | Engagement platform |
| Customer.io | SaaS and digital products | Event-triggered workflows | Engagement platform |
| MoEngage | Mobile-first brands | Analytics plus AI personalization | Engagement platform |
| CleverTap | Fintech, gaming and media apps | Retention analytics at scale | Engagement platform |
| Insider | Retail and travel brands | CDP plus individualized journeys | Engagement platform |
| Intercom | Support-led SaaS | Proactive messages next to AI support | Customer service platform |
How We Scored
We scored platforms on channel coverage, real-time data handling, journey building, personalization and AI features, warehouse and CDP integrations, and fit by business model.
The Top Customer Engagement Software
1. Braze
Braze processes events in real time and orchestrates email, push, SMS, in-app and WhatsApp from one canvas.
Many of the largest consumer apps and retailers run lifecycle programs on it.
Best for: Enterprise consumer brands. Core strength: Real-time cross-channel journeys.
2. Klaviyo
Klaviyo combines email, SMS and push with order data from Shopify and other platforms.
Prebuilt flows for abandoned carts and win-backs start earning quickly.
Best for: Ecommerce stores. Core strength: Deep store data and revenue flows.
3. Iterable
Iterable gives marketers flexible data models and cross-channel journeys without heavy engineering help.
AI picks send times, channels and content variants.
Best for: Growth-stage and enterprise marketers. Core strength: Flexible data with AI optimization.
4. Customer.io
Customer.io sends messages triggered by product events and includes data pipelines to route events elsewhere.
Technical marketers like its flexibility and clear pricing.
Best for: SaaS and digital products. Core strength: Event-triggered workflows.
5. MoEngage
MoEngage pairs product analytics with engagement across push, email, SMS, in-app and web.
It is widely used by mobile brands across Asia, Europe and the US.
Best for: Mobile-first brands. Core strength: Analytics plus AI personalization.
6. CleverTap
CleverTap focuses on retention with real-time segmentation and journeys for apps with large user bases.
Its data storage approach keeps costs manageable at scale.
Best for: Fintech, gaming and media apps. Core strength: Retention analytics at scale.
7. Insider
Insider combines a customer data platform with personalization across web, app, email, SMS and WhatsApp.
Predictive models flag likely buyers and churners.
Best for: Retail and travel brands. Core strength: CDP plus individualized journeys.
8. Intercom
Intercom pairs its Fin AI agent with product tours, banners and proactive messages.
It suits companies where engagement and support live together.
Best for: Support-led SaaS. Core strength: Proactive messages next to AI support.
Real-Time Data Is The Real Differentiator
A cart reminder sent an hour late or a welcome message that ignores what a user already did feels generic. During a trial, test how fast each platform reacts to a live event from your product or store.
Frequently Asked Questions
What is customer engagement software?
It uses customer data to send personalized messages across email, push, SMS and in-app channels, usually through automated journeys.
What is best for ecommerce?
Klaviyo is the most popular choice for ecommerce, with Insider and Braze used by larger retailers.
Is a CDP the same thing?
No. A CDP unifies data; an engagement platform acts on it. Some vendors offer both.
Conclusion
Braze and Iterable lead for large cross-channel programs, Klaviyo for ecommerce, Customer.io for SaaS and MoEngage or CleverTap for apps. Match the platform to your data and channels.
