AI-powered engagement

Still burning budget onMoEngage?

AI-powered customer engagement on your push, email, and in-app stack — same job as the enterprise suites, without the bloat.

  • AI-ready campaigns
  • Less cost
  • Less complexity
Start engaging customers

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Built for startups and growth teams · Flat plans from free

Ask AI in action

Ask AI · Draft a campaign

Describe the push — Ask AI drafts it, you confirm

Built for startups and growth teams. Results without enterprise bloat, cheaper and simpler.

Ask AIDraft campaigns, segments and templates, by describing what you want.

Nothing reaches your users until you press Confirm. Every AI action is logged.

Before

  1. 01 Open Segments
  2. 02 Add filter rules
  3. 03 Name & save
  4. 04 Attach to campaign

With Ask AI

“Users inactive 7 days, opened the app once, never purchased.”

One sentence. Draft ready to review.

  • Read, ask why a send missed people
  • Draft, campaigns, segments, templates
  • Confirm, send / pause / delete only after you click
Try Ask AI free

Included on every plan, from 50 AI requests on Free.

How Retainza growsWake users. Convert trials. Deepen adoption, without the bloat.

Real workflows that bring customers back and move the business forward.

01·Inactive User

Wake quiet users before they churn.

When inactivity conditions are met, your push workflow opens the app on the screen that restarts engagement.

How Retainza worksFrom setup to engagement, without the enterprise wait.

Three steps. No bloated onboarding. No six-week implementation.

  1. 01

    Connect your app

    Drop in the SDK. Go live in minutes, not weeks.

  2. 02

    Build a segment

    Pick who matters. Skip the noise.

  3. 03

    Start engaging customers

    Push, email, in-app, one simple flow.

See Retainza in actionCampaigns to analytics, run it all here.

One place for founders and growth teams who want control, not complexity.

01OverviewYour engagement control center

Scroll to move through the dashboard

What is Retainza

Push, in-app and email for your app — without the enterprise bill.

Retainza is a customer engagement and retention platform for apps: push notifications, email, in-app messages and deep-link navigation, driven by segments, campaigns and event tracking, with an AI assistant (Ask AI) that drafts campaigns, segments and templates for review. It is developer-first: messages go out through the customer's own Firebase (FCM) project and SMTP provider, so the customer keeps control of deliverability and sending cost. Pricing: a free plan (1,000 MTU), then Starter $50/mo (10,000 MTU), Growth $70/mo (25,000 MTU), Scale $100/mo (50,000 MTU); limits are hard caps with no overage billing. It suits startups and growth teams that want push, in-app and lifecycle messaging without enterprise-suite pricing.

Channels
Push to Android and iOS through your own Firebase project, email through any SMTP provider, in-app messages in five layouts, and deep links into any screen.
Ask AI
Describe a campaign, segment or template and Ask AI drafts it. Nothing reaches users until you confirm.
Pricing
Free for 1,000 MTU. Paid plans $50 / $70 / $100 per month, hard caps and no overage billing. See every limit.
Developers
SDKs for React Native / Expo and iOS today, with Android, Flutter and Node built and on their way to public registries. Guides, the HTTP API and an MCP server for AI coding tools are in the developer docs.

Questions, answered.Straight answers, no sales deck required.

What teams ask before they start engaging customers with Retainza.

What do I need to get started?

A project, your own FCM service account and SMTP details, and the SDK. You can be sending push, email and in-app messages the same day — the Free plan includes all five channels up to 1,000 monthly tracked users.

How is this different from OneSignal or Braze?

Retainza is developer-first and it uses your own FCM and SMTP credentials — so Retainza never owns your delivery cost or deliverability, and nothing about one tenant is reachable by another. Side-by-side comparisons, with a source for every claim, are at retainza.com/alternatives.

What is Ask AI and how is it billed?

Ask AI drafts campaigns, segments and templates from a description, and can answer questions about your own project data. Usage is counted in AI requests (one per reply) per organization per UTC month: Free 50, Starter 500, Growth 1,500, Scale 5,000. Nothing reaches users until you press Confirm — drafts never send on their own.

Which platforms do the SDKs support?

A TypeScript core powers thin wrappers for Web and React Native (with an Expo config plugin), plus a Node server SDK. Native iOS (Swift) and Android (Kotlin) SDKs and a Flutter SDK share the same behaviour; they are built and in pre-release ahead of registry publishing.

How are my push and email credentials stored?

They never touch the database in plain text. Each connection stores only a reference; the secret lives in Secret Manager, encrypted with a per-project KMS key using envelope encryption.

What happens if I hit a plan limit?

Sends and API calls stop with a quota error until the next month or you upgrade. Limits are hard caps — there is no automatic overage billing. Above 50,000 monthly tracked users, contact us.

Can I migrate from an existing provider?

Yes. Retainza mirrors the common in-app renderer + deep-link + route-resolver contract, so you can dual-run behind a feature flag and cut over once you're confident.

Stop burning budget on engagement.Same tools. Less cost. Less complexity.

Book a demo, or start engaging customers today.

Start engaging customers

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Retainza