App: GST Invoice Maker
Package: com.grizplayapp.gstinvoice
Developer: GrizPlay App
Effective date: 15 June 2026
GST Invoice Maker is a local-only app. It has no backend server, no account system, and never transmits your invoice data anywhere. The only network activity is banner advertisements served by Google AdMob.
All data you enter is stored exclusively on your device using AsyncStorage. It is never uploaded to any server.
| Data | AsyncStorage key |
|---|---|
| Seller business details (name, GSTIN, address) | @gim/seller |
| Invoice history (last 100 invoices) | @gim/invoices |
| Invoice counter and current FY number | @gim/counter |
| Customer memory (buyer details for quick-fill) | @gim/customers |
| Current invoice draft | @gim/draft |
| Recent item templates | @gim/recentitems |
| Onboarding completion flag | @gim/onboarded |
The app displays a banner advertisement powered by Google AdMob. When the ad loads, Google’s SDK may collect:
The app requests non-personalised ads only — it passes requestNonPersonalizedAdsOnly: true with every ad request. Google may still use contextual signals (device type, language, approximate location) to select relevant ads, but your advertising ID is not used for cross-app interest profiling in this app.
| Data | Purpose | Stored where |
|---|---|---|
| Seller details | Auto-fill your GSTIN, name and address on every invoice | On-device only |
| Invoice history | Let you review, reopen and re-share past invoices | On-device only |
| Customer memory | One-tap buyer fill on new invoices | On-device only |
| Invoice draft | Restore unsaved work if you leave the app mid-invoice | On-device only |
| Recent item templates | Speed up adding recurring line items | On-device only |
| AdMob ad data | Serve a banner advertisement to support the free app | Managed by Google |
All app data lives exclusively on your device. We have no servers, no databases, and no capability to access your data remotely. If your device is secure, your invoice data is secure.
Ad-related data collected by Google AdMob is governed by Google’s infrastructure and security practices. We do not store or have access to that data.
android:allowBackup="false" is set in the app manifest. Your invoice data is not included in Android’s automatic device backup and is not synced to Google Drive or any other service.
| Permission | Reason |
|---|---|
android.permission.INTERNET |
Required for Google AdMob to load and serve banner advertisements |
android.permission.VIBRATE |
Used for haptic feedback when buttons are tapped (expo-haptics) |
No other permissions are requested or used.
The only third-party SDK integrated in this app is Google AdMob (react-native-google-mobile-ads). AdMob is operated by Google LLC, 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA.
Google’s privacy policy is available at: https://policies.google.com/privacy
Because the app requests non-personalised ads only, Google uses limited signals (contextual and device-level) to serve ads. No interest-based audience profiles are built from your usage of this app.
Opt-out options:
We do not sell, rent, or trade your data. We do not share data with:
The only external data flow is AdMob’s ad-serving process described in Section 5. We have no control over and no access to that data.
The app includes two optional share actions:
Content is shared only through the app or service you choose on your device.
GST Invoice Maker is not directed at children under the age of 13 (or under 16 in the European Economic Area). The app is a business invoicing tool intended for adults and business owners. We do not knowingly collect any information from children. If you believe a child has used this app in a way that raises privacy concerns, please contact us at grizplayapp@gmail.com.
Because all app data is stored locally on your device, you have full control over it at all times:
GDPR (European users)
Since no personal data is collected or processed by us, the primary data processor relevant to EU users is Google (AdMob). You may exercise your rights under GDPR in relation to Google’s data processing via Google’s privacy controls. For any questions specific to this app, contact us at grizplayapp@gmail.com.
CCPA (California users)
We do not sell personal information. We do not share personal information for cross-context behavioural advertising. The only third-party data processing is AdMob’s non-personalised ad serving described in Section 5.
| Data type | Retention | How to delete |
|---|---|---|
| Seller details | Until you clear or update them in the Business tab | Business tab → edit fields |
| Invoice history | Last 100 invoices retained automatically; older entries are dropped | Device App Settings → Clear Data, or uninstall |
| Customer memory | Until you clear app data | Device App Settings → Clear Data, or uninstall |
| Draft invoice | Until you confirm or discard the draft | Confirm or abandon the invoice in the app |
| AdMob ad data | Managed by Google per their retention policy | adssettings.google.com or delete your Google Advertising ID on your device |
We may update this policy from time to time. The effective date at the top of this page will always reflect the most recent revision. Continued use of the app after a change is posted constitutes acceptance of the updated policy. For significant changes, we will update the app’s Play Store listing description.
Questions or concerns about this privacy policy or your data?
Email: grizplayapp@gmail.com
Developer: GrizPlay App
Privacy policy URL: https://immrrohit.github.io/gstinvoice-policy/
GST Invoice Maker · Package: com.grizplayapp.gstinvoice · © 2026 GrizPlay App. All rights reserved.