AI-native retention — the alternative to Customer.io

Retention campaigns that build themselves

Describe a goal — recover abandoned carts, win back churned customers — and EngageApp's AI builds the full multi-step journey across email, SMS, WhatsApp, and push. Pay only for messages sent, not for contacts you store.

EngageApp / Campaigns / Welcome Series
Trigger
User Signs Up
Email
Welcome Message
94.2% delivered
Wait
2 Days
SMS
Quick Reminder
89.7% delivered
Push
Feature Tips
76.3% opened

Stop paying for contacts you never message

Customer.io bills you for every profile you store. EngageApp charges credits only when a message is successfully sent. Unlimited contacts. Failed sends are never charged.

AI builds the campaign

Describe your goal and get a complete multi-step journey — copy, timing, and channel choices — generated for you. AI is the default, not a bolt-on.

Pay per send, not per profile

Credits are spent only when a message is successfully sent. Unlimited contacts, and no bill for stored or inactive profiles.

Omnichannel in one journey

Email, SMS, WhatsApp, and push in a single flow, with unified real-time analytics across every step.

Switching from Customer.io?

Everything you rely on — segments, event triggers, visual journeys — plus AI campaign generation and native WhatsApp & SMS, without the per-profile bill.

Compare EngageApp vs Customer.io
70.1%

Average cart abandonment rate (Baymard Institute, 2025)

18.3%

Higher engagement with multi-channel (SaleCycle, 2025)

80%

Faster campaign setup with AI generation

6

Channels supported — email, SMS, WhatsApp, push, API, webhooks

Capabilities

Everything you need to engage at scale

From first touch to long-term retention — one platform for every stage of the customer lifecycle.

AI Campaign Generation

Describe your goal and let AI generate complete multi-step campaigns with copy, timing, and channel selection.

Visual Campaign Builder

Design multi-step journeys with a drag-and-drop canvas. Branch on behavior, delays, and conditions — no code required.

Omnichannel Messaging

Reach customers on email, SMS, WhatsApp, and push — all from a single campaign. Unified analytics across every touchpoint.

Dynamic Segments

Build audiences that update in real-time based on contact properties, custom events, and behavioral signals.

Event-Driven Triggers

Ingest events from your product and trigger campaigns instantly. Filter on properties, set time windows, and personalize at scale.

Real-Time Analytics

Track deliveries, opens, clicks, and conversions per step. Drill into individual contact journeys.

How it works

From zero to first campaign in minutes

Four steps. That's all it takes to start engaging your customers on every channel.

01

Connect your data

Import contacts, sync attributes, and start ingesting behavioral events from your product with a single API call.

POST /api/v1/events
{ "event_name": "purchase",
  "properties": { "amount": 99.00 } }
02

Build your audience

Create segments that combine contact properties with event history. "Users who signed up this week AND viewed pricing 3+ times."

Dynamic Segment Live
Event purchase performed ≥ 3x
Field plan equals "pro"
1,247 contacts matched
03

Design the journey

Use the visual builder to craft multi-step campaigns with delays, branches, and channel-specific content.

Trigger
Email
SMS
04

Launch and measure

Activate your campaign and watch engagement metrics flow in real-time. Iterate based on what the data tells you.

Campaign Active 3,842 enrolled
Delivered 94.2%
Opened 68.7%

Omnichannel

One campaign.
Every channel.

Compose a single journey that spans email, SMS, WhatsApp, and push notifications. Each step delivers on the channel your customer prefers.

Email
Rich HTML templates with dynamic personalization
SMS
Concise text messages with smart link shortening
WhatsApp
Interactive messages with QR pairing and templates
Push
Native notifications on iOS, Android, and web
Email
SMS

Hey Sarah! Your order #4821 shipped. Track it here: eng.app/t/k8x

WhatsApp

Welcome to EngageApp!

Get Started
Learn More
Push

New feature unlocked!

You can now schedule campaigns with AI. Try it out.

ingest-events.sh
# Ingest a customer event
curl -X POST https://api.engageapp.xyz/api/v1/events \
  -H "Authorization: Bearer $API_KEY" \
  -d '{
    "external_id":"usr_9f8a2b",
    "event_name":"purchase_completed",
    "properties": {
      "amount":149.00,
      "plan":"pro"
    }
  }'
# Campaign triggers instantly
> 200 OK — event ingested, 1 campaign triggered

Developer-first

API-native from day one

Ingest events, manage contacts, and trigger campaigns with a clean REST API. Every feature in the UI is available programmatically.

  • REST API with JWT & API key authentication
  • Real-time event ingestion with auto-triggering
  • Webhook callbacks for delivery status updates
  • Contact sync via external_id for seamless integration

Ready to orchestrate
your customer engagement?

Start with a free account. No credit card. No time limit. Build your first campaign in minutes.