Privacy Policy

Effective Date: September 17, 2026

This Privacy Policy describes how RollJournal ("we", "us", or "our"), operated by Mako Technology Labs, LLC, handles information when you use the RollJournal mobile app.

The short version: RollJournal has no accounts and no server. Your training logs, focus areas, favorites, and every other piece of training data you enter stay on your device, in a local database, for as long as you keep the app installed. We never see it, store it, or transmit it anywhere.

1. Information We Don't Collect

There is no sign-up, login, or account of any kind. We don't ask for your name, email address, or any other identifying information, and we have no server to send it to even if we wanted to. Every training log, focus area, favorite, technique note, and belt promotion you record is written directly to a SQLite database stored locally on your device.

2. Anonymous Usage Analytics

We use a privacy-focused analytics tool (PostHog) to understand which features people actually use — for example, that someone completed onboarding, created a log, or opened the Stats tab. These events:

• Are tied to a random, anonymous identifier generated on your device — never your name, email, or anything else that identifies you personally (we don't have that information to attach even if we wanted to).
• Never include the content of your training logs, notes, techniques, or any other data you enter into the app — only the fact that an action happened (e.g. "a log was created"), not what's in it.
• Are used only to understand feature usage and improve the app.

3. Optional Health Connect / Apple Health Integration

RollJournal offers an optional feature to write your BJJ training sessions to your device's health platform (Health Connect on Android or Apple Health on iOS).

• What we write: exercise sessions (start time, duration, activity type) and estimated active calories burned.
• Write-only: we only request permission to add workout entries. We never read, access, or collect any existing health data from your device.
• This data goes directly from RollJournal to your device's own health platform — it never passes through us, because there's nothing on our end for it to pass through.
• Entirely optional, off by default, and revocable at any time through your device's Health Connect or Apple Health settings.

4. Backup & Export

Settings → Backup lets you export your data as a JSON file, which your device's own share sheet then lets you save, email, or upload wherever you choose (Files, Drive, iCloud, etc.). That's entirely under your control — we never see or receive a copy of it.

5. Deleting Your Data

Settings → General → Danger Zone has a Delete Account button. Tapping it permanently and immediately wipes every training log, focus area, favorite, and setting from your device. There's no waiting period and nothing to request by email, because there's no server-side copy to go find and delete — deleting it on your device is the whole process. Uninstalling the app has the same effect.

6. Third Parties

The only outside parties involved at all are PostHog (anonymous product analytics, described above) and, if you turn it on, your device's own Health Connect or Apple Health platform. We don't use Auth0, Clerk, Stripe, OpenAI, or any other third-party service — this version of RollJournal doesn't have accounts, subscriptions, or AI features. We don't sell, rent, or share your information, because we don't have any to sell.

7. Children's Privacy

RollJournal includes belt-rank tracking for both adult and kids' BJJ programs, so the app is sometimes used by or on behalf of younger athletes (typically with a parent or guardian operating the device). Because RollJournal never collects names, emails, or any other personal information from anyone, regardless of age, there's nothing for us to hold or need to delete.

8. Changes to This Privacy Policy

If this policy changes, the updated version will ship with the app update and be available at this policy page.

9. Contact

Questions or concerns? Reach out:

• Email: support@makolabs.io
• Business Name: Mako Technology Labs, LLC