Privacy Policy

Last updated: August 31, 2026

SproutLog ("we", "our", "the app") is a gardening and plant-care journal published by ReniusLab. This policy explains what information the app collects, why, and what choices you have. SproutLog is built offline-first: you can use its free gardening features — gardens, plants, care tasks, journal entries, photos — on your device, without creating an account.

Information we collect

What's collected depends on how you use the app:

Account information. If you create an account (email/password or Google Sign-In), we receive your email address and display name via Firebase Authentication. You can also use the app anonymously ("Continue as Guest") without providing either.
Garden and plant data. Garden names, plant nicknames, planting dates, care logs, and journal notes you enter. This is stored locally on your device at all times; if you're signed in on the paid "Plus" plan, it's also synced to our cloud database (Cloud Firestore) so it's available across your devices.
Photos. Photos you attach to a plant or care log. Stored locally, and — for Plus subscribers — uploaded to Firebase Cloud Storage for backup and cross-device sync.
Diagnostics. We use Firebase Crashlytics to receive automatic crash and error reports, and Firebase Analytics to understand aggregate feature usage (e.g. which screens are used, not the content of your garden data). Neither is tied to your name or email.
Advertising data. The free version uses Google AdMob. The Google Mobile Ads SDK may collect and share your IP address (which can indicate general location), interactions with the app and ads, diagnostic information, and device or advertising identifiers for advertising, analytics, and fraud prevention. Plus subscribers do not receive ads.

How we use this information

To provide the app's core functionality (storing and displaying your gardening data).
To sync your data across devices if you're signed in on a Plus subscription.
To diagnose crashes and improve reliability.
To understand which features are used, in aggregate, so we can prioritize improvements.
To display, measure, and protect advertising in the free version.

We do not sell your garden, plant, journal, account, or photo data. That content is not used to personalize advertising.

Advertising and consent

Ads are provided by Google AdMob. Where required, the app uses Google's User Messaging Platform to request consent before loading ads and to offer the available privacy choices. Depending on your choice and region, Google may serve personalized, non-personalized, or limited ads. You can revisit available advertising privacy choices from the app's Settings screen. Learn more in Google's Privacy Policy.

Where your data lives

Local data is stored in an on-device SQLite database and never leaves your device unless you're signed in with cloud sync enabled. Cloud data (Firestore, Storage, Authentication, Crashlytics, Analytics) is hosted by Google Firebase, under Google's own security and data-processing terms.

Your choices

Use it fully offline. Skip account creation entirely — nothing leaves your device.
Turn off notifications for care reminders at any time in Settings.
Review advertising privacy choices from Settings whenever that option is required in your region.
Export your data as a JSON file from Settings → "Export my data".
Delete your account and all associated data at any time from Settings → "Delete Account" — see our Data Deletion page for details, including what to do if you no longer have access to the app.

Children's privacy

SproutLog is not directed at children under 13, and we do not knowingly collect personal information from children under 13. If you believe a child has provided us with personal information, contact us and we'll delete it.

Changes to this policy

If this policy changes materially, we'll update the date above and, for signed-in users, note it in the app.

Contact

Questions about this policy or your data: support@sproutlog.reniuslab.com.