# Whisperr: retention that runs itself

Whisperr is retention that runs itself: an autonomous retention engine for mobile apps, games and e-commerce. It spots the users who are about to leave, brings them back with the right push or email at the right moment, and shows you how many it kept.

## Get started

Start your 30-day free trial: https://app.whisperr.net/signup

After you sign up, paste this into Claude Code, Cursor, Codex or any coding agent:

```text
Set up Whisperr in this app. Fetch https://whisperr.net/setup.md and follow it.
```

You approve until you trust it. Then it runs itself.

Backed by 500 Global and Antler.

## Works with

- RevenueCat
- Stripe
- OneSignal
- Firebase Cloud Messaging
- Apple Push Notifications
- Expo
- Postmark
- Resend
- SendGrid (coming soon)
- Amazon SES (coming soon)
- Loops (coming soon)
- Twilio (coming soon)
- Bird (coming soon)

## Users don't quit. They drift.

Nobody cancels on a whim. They open your app a little less each week, and by the time the cancellation comes in, they decided weeks ago. Whisperr catches the drift while there's still time to help.

Example: Anna, learning Spanish on a language app, did 9, 11, 10, 11, 8, 5, 3, then 2 lessons a week. Whisperr steps in at week 8, weeks before she would cancel.

## How Whisperr kept Anna

1. **Install.** From one prompt, Claude Code, Cursor, Codex or Windsurf adds our SDK and wires up the 42 events we need. You review the diff and merge.
2. **Understand.** Every lesson, tap and payment lands on one timeline. We see Anna went from 11 lessons a week to 2, and her plan is set to end on Friday.
3. **Decide.** Anna is close to leaving, so she gets a push at 7pm, when she usually learns. Mia gets an email tomorrow at 9. Every call is made for one person, at their hour. You approve until you trust it. Then it runs itself.
4. **Send.** We write it for Anna alone, in your app's voice. It goes out at 19:02 from your own OneSignal, Postmark, Resend, Firebase or Expo account, under your name.
5. **Prove.** A small group never gets a message. Compare them with everyone else and you see how many users we kept. Every result makes the next call sharper.

The push Anna got at 19:02, when she usually learns: "2 lessons left in Spanish Basics. Ten minutes tonight and you're done. Next up: ordering tapas." She finished the unit and turned renewal back on.

## Anna is one story. Your app has hundreds.

- Trial ends tomorrow: "Your trial ends tomorrow. The 6 looks you made stay with Pro."
- Card didn't go through: "No rush. Update it in a minute and your progress stays exactly where it is."
- Renewal switched off: "Want us to save your favourites, in case you come back?"
- Quiet for 9 days: "Mira finished the raid without you. Tonight's starts at 8."
- Stuck in setup: "Connect your bank and see where October went."
- Due a second order: "You loved the miso salmon. It's back this week."
- Doing great: nothing sent. Sara practised every day this week. Whisperr leaves her alone.

## Where it started

We built the first version inside HotCard (https://hotcard.app), a consumer app our team runs in Georgia, with 200,000+ signups and 25,000+ paying users every month. It lifted 90-day paying retention at HotCard by 32%. Whisperr is that system, rebuilt for your app.

## Pricing

Pay for the users we cover. Prices are in US dollars. Yearly billing gives you 2 months free.

| Plan | Price | Users covered | Extra users | Above the plan (default) |
| --- | --- | --- | --- | --- |
| Free | $0 | 1,000 | No extra users. Messaging stops above 1,000. | Stop messaging |
| Solo | $49/mo or $490/yr | 5,000 | Then $12 per extra 1,000 users, up to 8,000 users in all | Stop messaging |
| Studio | $159/mo or $1,590/yr | 10,000 | Then $12 per extra 1,000 users | Stop messaging |
| Team | $449/mo or $4,490/yr | 40,000 | Then $10 per extra 1,000 users | Cover new users, up to a spend limit you set |
| Scale | $1,299/mo or $12,990/yr | 150,000 | Then $8 per extra 1,000 users | Cover new users, up to a spend limit you set |
| Enterprise | From $3,999/mo, billed yearly | 500,000 | Then $7 per extra 1,000 users, set in your contract | Set in your contract |

- **Users covered.** A user counts when your app identifies them and they send at least one event in the month. Anonymous devices do not count.
- **Extra users.** The per-1,000 price applies only to users above the number your plan includes. Free has no extra users.
- **30-day free trial.** Paid plans start with one. You add a card at checkout. Cancel before the trial ends and you pay nothing. One trial per company.
- **Above your plan, you choose.** Keep the bill fixed: we stop messaging above your plan and keep collecting your data. Or cover new users up to a monthly spend limit you set. Team and Scale start on cover. Change it in Settings at any time.
- **AI messages.** Each plan includes 1 AI message per covered user each month. Extra AI messages cost $5 per 1,000.
- **Delivery.** You connect your own push and email providers.

Start a free trial: https://app.whisperr.net/signup. Enterprise: hello@whisperr.net.

## For apps, games and e-commerce

- **Mobile apps.** Trials, habits and the slow fade before a cancel, caught in time. https://whisperr.net/mobile-apps
- **SaaS.** Activation, empty seats and accounts that stall, caught while there is time. https://whisperr.net/saas
- **E-commerce.** The second purchase, replenishment timing and win-back, without discounting every cart. https://whisperr.net/ecommerce
- **Games.** The first seven days, the first payment and the player who stops logging in. https://whisperr.net/games

## Your data is secure with us

Whisperr runs in the EU, signs a DPA with every customer, and never lets AI providers train on your data.

- GDPR (ready): we work as your processor under a public DPA (https://whisperr.net/dpa), with every sub-processor listed (https://whisperr.net/subprocessors). The app and database live in the EU, in Sweden. A few AI and analytics providers are in the US, and none of them train on your data.
- EU AI Act (in progress): the Act's rules started applying in August 2026. We're building its transparency rules into automated messaging, and you stay in control with approvals until you trust it.
- SOC 2 Type II (up next): our next audit. We start once our current security work wraps up.
- ISO 27001 (on the roadmap): we'll call it certified only when the audit passes.

Security questionnaire? Send it to security@whisperr.net. Details: https://whisperr.net/security

## Company

- Founder: George Zhgenti, co-founder, product
- Backed by 500 Global and Antler
- App and database hosted in the EU
- Sign up: https://app.whisperr.net/signup
- Docs: https://docs.whisperr.net