Version 0.4 · drafted 2026-08-05 · revised 2026-09-06 · Effective date: 2026-09-06
Operator: Oriel Benggen Ringel Address: 49 Amos St., Tel Aviv 6249545, Israel Privacy contact: ori1334@gmail.com
Your training data stays on your device. Drills, answers and settings are stored locally. There is no app account, advertising or cross-app tracking. The app connects to Apple or Google and to RevenueCat to load subscription offers, check access, process purchases and restore purchases. These connections can occur even if you have not bought a subscription. Section 5 describes the data involved.
This document explains what is stored and where.
The app writes three groups of data to a local SQLite database on the device:
| What | Detail |
|---|---|
| Practice sessions | Start and end time, which situation, how many drills, the session type |
| Answers | The hands shown, what you chose, what the solution said, whether it matched, and when |
| Settings | Theme, your onboarding questionnaire answers, and similar internal flags — including anything you type into the session tracker and the home-game book: player names you enter yourself, buy-in and cash-out amounts in shekels, and your own notes |
Amounts you type into the home-game book are arithmetic on a game played in real life. No payment is made, received, or processed through the app, it is not connected to any bank, payment provider, or gambling operator, and the numbers never leave the device.
Photos you attach to a session or to a home-game night are copied into the app's own storage area on the device and only the file path is kept. They are not uploaded, not backed up by us, and not shared with anyone.
What is not stored: name, email address, phone number, postal address, contacts, location, advertising identifiers, IP address, browsing history, or anything else that identifies you — unless you type it in yourself, in which case it stays on the device like everything else.
| Permission | When it is requested | What happens to the result |
|---|---|---|
| Photo library | Only at the moment you choose "attach a photo" in the session tracker or in a home-game night | The picked image is copied into the app's own storage. Nothing else in your library is read |
| Camera | Only if you choose to take the photo instead of picking one | The picture is saved into the app's own storage, exactly like a picked one |
If you refuse either permission, the app says so and everything else keeps working. It requests no microphone, location, contacts, calendar, notification, or tracking permission.
Age. The onboarding asks your age band. The answer is stored on the device to enforce the age limit and is not transmitted anywhere.
Starting with version 1.1, the app offers a subscription called Nats Pro (its terms are in section 6 of the Terms of Use). The purchase itself happens entirely with Apple (App Store) or Google (Google Play). Your payment details — card, account information — go to them only, and never to us. We never see or store a payment method.
To know whether your subscription is active, the app uses RevenueCat, a subscription-validation service. When loading offers or checking, purchasing or restoring access, RevenueCat processes:
This information is used to operate subscriptions, validate access and provide subscription analytics (such as purchases and renewals). It is not used to track your training or target advertising. RevenueCat's privacy policy is at revenuecat.com/privacy. Your drills, answers, and statistics stay on the device, as described in section 2.
When you activate Android review access with a supplied code, the app sends that code and its anonymous RevenueCat identifier to our activation endpoint hosted by Vercel. The endpoint validates the code and asks RevenueCat to grant access. We do not log the code or identifier in application logs. Hosting providers may process technical request information, such as IP addresses, to operate and secure the service. No training answers or payment details are sent to this endpoint.
Training content is available offline. Loading offers and checking subscription status use network connections, including for free users.
The app is for ages 18 and over only, and enforces an age gate during onboarding. It is not directed at children and does not knowingly collect information about minors.
Data is stored inside the app's private storage area on the device, protected by the operating system's sandbox and by device encryption. The subscription and review-access connections described in section 5 use encrypted HTTPS.
Any material change will be published at the same URL with a new effective date. The version that applies to you is the one published at the time you use the app.
ori1334@gmail.com Oriel Benggen Ringel, 49 Amos St., Tel Aviv 6249545, Israel