A small app, made by a small team.

Why we built it

Two of our co-founders had babies in the same year. Both tried sleep training. Both found that the existing apps wrapped Dr. Ferber's method in a layer of marketing, premium upsells, mascot illustrations, and onboarding quizzes that had nothing to do with sleep.

The book is excellent. The method is well studied. The thing that did not exist was a small app that ran the timer, logged the night, and respected the published method without trying to be anything else. Ferber is that app.

What we do not do

• We do not have accounts. There is nothing to sign in to. Your night history is on your phone.
• We do not run ads. Not in the app, not on this site.
• We do not track you across other apps or websites, and we do not collect your iPhone's advertising identifier. We do use privacy-friendly, anonymous analytics and crash reporting in the app, tied to a random install ID, so we can see what helps and fix what breaks. This site uses cookieless Cloudflare Web Analytics.
• We do not sell your data.
• We do not have a "premium" tier hiding the useful features. Night 1 is free, and one purchase unlocks the whole 7-night program. No subscription.
• We do not gate the website content. The method explainer, the 12 guides, and the troubleshooting flows are free, no email required.

Who we are

Lucky Future Ltd, trading as Pickled Pepper Studio. A small team based in the United Kingdom, building consumer apps that do one thing well. Ferber is our second app and our most personally motivated one.

We are not affiliated with Dr. Richard Ferber or with Boston Children's Hospital. The Ferber method is published in Solve Your Child's Sleep Problems, available where books are sold. We have implemented the method as published, with primary-source citations on every page that makes a method claim.

Our position on data and privacy

Your night history, your settings and your baby's name (if you add one) stay on your phone. The timer, the history, the next-night intervals and the widget all run locally, and your baby's name is never shown on the Lock Screen, the widget or in notifications.

The app does send some data out, and we would rather say so plainly. Anonymous product analytics (PostHog) tell us things like which screens get used and how many nights people complete. Crash reports (Sentry) help us fix bugs. Install attribution (AppsFlyer) tells us whether an ad campaign led to an install, using Apple's privacy-preserving SKAdNetwork rather than your advertising identifier. RevenueCat and Apple handle the one-time purchase. None of this is tied to your name or email, because we never ask for them. The privacy policy lists exactly what each service receives.

If you delete the app, the data on your phone is gone. There is no account and no cloud backup of your night history.

How we make decisions

Three rules:

1. The published method is the source of truth. If the app behaviour would diverge from Dr. Ferber's table, we do not ship the divergence unless we can cite an equally credible source.
2. The app respects your time. We do not run engagement campaigns. The notification surface is one nightly reminder if you opt in, plus interval check-in alerts while a session is running.
3. Every feature has to either earn its place during an actual Ferber arc or get cut. We have cut more features than we have shipped.