Nestio is a baby and child activity tracker designed for parents and caregivers. Your privacy and the privacy of your family is our priority. This Privacy Policy explains what information we collect, how we use it, and your rights regarding your data.
1. Information We Collect
1.1. Information You Provide (stored locally)
When you use Nestio, you voluntarily enter information that is saved only on your device:
- Child Profile: name, birth date, gender, profile color, comment, and an optional avatar photo selected from your device's gallery.
- Activity Records: sleep duration, feeding times and sides, bottle amounts, diaper changes, weight, height, temperature, doctor visits, symptoms, vaccinations, medicines, and any custom events you create.
- Reminders & Settings: notification preferences, reminder schedules, widget settings, and app settings (language, units, theme).
All of the above is stored in a local SQLite database (nestio.db) and in local app settings. We do not have access to this data.
1.2. Photos and Media
The app requests access to your photo library so you can select a profile picture (avatar) for a child. The selected image is converted to a base64 data URI and stored locally. We do not upload or transmit photos to any server.
1.3. Automatically Collected Information
To improve app stability and performance, the app sends limited technical analytics data to our server (app.dev-lab.app/api) when the app launches and during sessions:
- Device information: a randomized device UUID (generated locally), device brand, manufacturer, model, device type (phone/tablet), total RAM, device year class, OS version, and platform (Android/iOS).
- Locale information: language tag, region code, text direction (LTR/RTL), timezone, 24-hour clock setting, and first weekday.
- App information: app version, ad provider identifier, launch time, and session start/end timestamps.
- Session token: a temporary random token used only to pair session-start and session-end events.
This analytics data does not include any child names, photos, activity records, or personally identifiable information.
1.4. Advertising Data
Nestio displays ads via Google Mobile Ads (AdMob). The following applies:
- We use banner, interstitial, and rewarded video ads.
- Ads are configured with
requestNonPersonalizedAdsOnly: true. - Google may collect device identifiers and ad interaction data according to Google's Privacy Policy.
- You can disable ads entirely by purchasing the Premium version of the app (when available).
2. How We Use Your Information
| Purpose | Data Used | How It's Processed |
|---|---|---|
| Core app functionality | Child profiles, activity records, reminders | Stored and processed locally on your device |
| Local notifications | Reminder settings | Used to schedule system push notifications on your device |
| Analytics & stability | Device model, OS version, launch time, locale | Sent anonymously to our server for bug fixing and performance improvements |
| Advertising | Device ad identifier (for AdMob) | Processed by Google AdMob SDK to serve non-personalized ads |
| Export & sharing | Activity history | CSV/PDF files are generated locally and shared via your device's native share sheet |
3. Data Storage and Security
- Local storage: All sensitive data (child info, activity history, photos) is stored locally in your device's sandboxed app storage using SQLite.
- No cloud sync: By default, data is not synchronized to any cloud service or external server.
- Data export: You can export your data as a CSV file or generate a PDF report at any time through the app's History screen.
- Deletion: You can delete all data within the app settings or by uninstalling the app, which removes all local databases and files.
4. Third-Party Services
We use the following third-party services:
| Service | Purpose | Data Shared |
|---|---|---|
| Google Mobile Ads (AdMob) | Display advertisements | Device advertising ID, IP address, device model |
| Expo / React Native frameworks | Core app functionality | No personal data is sent to servers by this app |
Internal analytics API (app.dev-lab.app) | Crash analytics and version checks | Anonymous device and session metadata only |
We do not sell, rent, or trade your personal information.
5. Required Permissions
The app requests the following Android permissions, and here is why:
| Permission | Purpose |
|---|---|
INTERNET | Send anonymous analytics and load advertisements |
READ_EXTERNAL_STORAGE | Select a child avatar photo from your gallery |
WRITE_EXTERNAL_STORAGE | Save exported CSV/PDF files to device storage |
RECORD_AUDIO | Declared in manifest; not actively used by current features |
VIBRATE | Provide haptic feedback for timers and notifications |
SYSTEM_ALERT_WINDOW | Support for overlay notifications (if enabled) |
POST_NOTIFICATIONS (via expo-notifications) | Deliver local reminder notifications |
6. Children's Privacy (COPPA Compliance)
Nestio is intended for use by parents and adult caregivers. While the app stores information about children (such as names, birth dates, and health-related activities), this data is:
- Entered and managed solely by the adult user.
- Stored only on the local device and never transmitted to us or any third party.
- Not used for profiling, marketing, or analytics.
If you are a parent and believe your child has provided us with personal information directly (without your involvement), please contact us at the email below so we can assist in removing it.
7. Your Rights and Choices
You have full control over your data:
- Access & Export: View all data in the app and export it as CSV or PDF.
- Correction: Edit or update any child profile or activity record at any time.
- Local Data Deletion: Clear all data from Settings, or uninstall the app to permanently delete the local database.
- Opt-out of ads: Upgrade to Premium (when available) or disable ad networks in Settings.
- Opt-out of analytics: Analytics collection is minimal and anonymous; there is currently no separate opt-out because no personal data is collected.
7.1. Requesting Deletion of Server-Side Data
While your child's data (profiles, activities, photos) is stored only locally on your device, the app sends anonymous analytics data (device UUID, device info, session metadata) to our servers. To request deletion of this server-side analytics data, use the "Contact Us" button in the App settings. This will open your email client with a pre-filled message to info@dev-lab.app containing your Device UUID automatically. Simply send the email with your deletion request.
Alternatively, you can manually send an email to info@dev-lab.app with the subject line "Data Deletion Request" and include your Device UUID (which you can view by tapping the "Contact Us" button in the App settings).
We will process your request within 30 days and permanently delete all analytics data associated with your Device UUID from our servers.
8. Data Retention
- Local data: Retained on your device until you delete it or uninstall the app.
- Analytics data: Retained on our servers for up to 12 months for debugging and statistics, after which it is automatically deleted.
9. International Users
Nestio is available globally. Your local data remains on your device. Anonymous analytics may be processed on servers located in the EU. By using the app, you consent to the transfer of anonymous analytics data as described in this policy.
10. Changes to This Privacy Policy
We may update this Privacy Policy from time to time. We will notify you of any material changes by updating the effective date at the top of this policy. Continued use of the app after changes constitutes acceptance of the revised policy.
11. Contact Us
If you have any questions or concerns about this Privacy Policy or your data, please contact us:
Developer: Dev Lab
Email: info@dev-lab.app
This privacy policy is compliant with Google Play's User Data policy and COPPA guidelines.