Cup & Gram - Kitchen Converter ("the app", "we", "us") is an offline ingredient-density-aware unit converter for cooks and bakers, developed by Mahesh Varma under Jeweality. This Privacy Policy explains what information the app handles, how it is used, and the controls available to you. By downloading or using the app, you agree to the practices described here.
The short version: Cup & Gram works fully offline. Every conversion, recipe parse, and preference you set is stored only on your device. We do not run any servers that collect your personal data. The only third-party component in the app is Google AdMob, used to show ads that keep the app free — details on exactly what that involves are below.
1. Data We Collect
a) Data stored locally on your device
The app uses a local database (Room) and a local preferences store (DataStore) that live entirely inside the app's private storage on your phone. None of the following ever leaves your device or is transmitted to us:
| Data | What it includes | Why it's stored |
|---|---|---|
| Conversion history | Ingredient name, input value/unit, result value/unit, timestamp | So you can revisit or replay a past conversion |
| Recipe history | Recipe text you paste, the converted output, servings, timestamp | So your converted recipes are saved for later, offline |
| Favorite ingredients | Which ingredients you've marked as favorites | Quick access from the Favorites tab |
| App preferences | Cup standard (US/Metric/UK), decimal precision, theme, dynamic color toggle | Remembers your settings between sessions |
None of this is personal data in the traditional sense — there's no name, email, phone number, or account tied to it. It's just app-usage data sitting in a local database file on your own device, the same as any other app's local cache.
b) Data collected automatically by Google AdMob
The app shows banner and interstitial ads through Google AdMob. To serve and measure those ads, Google's SDK may automatically collect technical and advertising data such as your Advertising ID, device/OS information, IP address, and ad interaction events. This collection is performed by Google, not by us — see the Advertising section below for full details and opt-out instructions.
2. Data We Don't Collect
To be explicit, Cup & Gram does not:
- Require or support account creation, sign-in, or login of any kind
- Collect your name, email address, phone number, or physical address
- Access your camera, microphone, contacts, photos, or precise location
- Sync any data to a cloud server we operate — there is no backend server at all
- Track your activity across other apps or websites
- Sell your data to anyone, because we don't collect any to sell
3. Advertising (Google AdMob)
Cup & Gram is monetized using Google AdMob, which serves:
Interstitials are shown at natural break points (for example, after converting a full recipe) and are capped to roughly once every 3 minutes so they don't get in your way.
AdMob is Google's advertising service, and it operates under Google's own privacy and data practices. When ads are requested and displayed, Google's SDK can collect and process:
- Your device's Advertising ID (a resettable identifier, not tied to your name)
- Device attributes (model, OS version, screen size, language, network/carrier)
- Approximate location derived from IP address
- Ad interaction data (impressions, clicks, viewability)
This data is used by Google to serve relevant ads, measure performance, and prevent fraud. We do not receive or store this ad-related data ourselves — it is processed by Google under its own policies:
- Google Privacy Policy
- How Google uses information from sites and apps that use its services
- Google Ads Settings (manage ad personalization)
Opting out of personalized ads
You can limit ad personalization at the device level:
- Open your Android device's Settings
- Go to Privacy & security > Ads (or Google > Ads on some devices)
- Turn on "Opt out of Ads Personalization" or reset your Advertising ID
Opting out means you'll still see ads (the app still needs them to stay free), but they'll be less tailored to your interests.
4. App Permissions
Cup & Gram requests the minimum permissions needed for ads to function. Here's exactly what each one does:
| Permission | Purpose |
|---|---|
INTERNET |
Required so Google AdMob can request and download ad content |
ACCESS_NETWORK_STATE |
Lets the AdMob SDK check network connectivity before requesting an ad |
com.google.android.gms.permission.AD_ID |
Allows access to your Advertising ID for ad delivery and measurement, per Google Play policy |
The app does not request camera, microphone, location, contacts, storage, or SMS permissions.
5. Storage & Security
All app data (conversion history, recipe history, favorites, and preferences) is stored using Android's standard app-private storage mechanisms (Room database and Jetpack DataStore), sandboxed to the app by the Android operating system. This data:
- Is never transmitted to us or to any server we control — there is no such server
- Is not accessible to other apps on your device (enforced by Android's app sandboxing)
- Is automatically removed when you uninstall the app
- Can be cleared anytime in-app via "Clear history" (Favorites screen) or "Reset Preferences to Default" (Settings screen)
Because nothing sensitive is transmitted off-device by us, there is no server-side breach risk tied to your usage data. Standard Android OS-level protections (app sandboxing, and device encryption where enabled) apply to the local storage as they would for any app.
6. Children's Privacy
Cup & Gram is a general-audience kitchen/cooking utility and is not directed at children under 13. We do not knowingly collect personal information from children. Ad serving through Google AdMob is configured in line with Google Play's Families and child-safety policies. If you believe a child has provided us information, contact us using the details below so we can address it.
7. Your Choices & Rights
Because almost all data stays on your device, you're already in control. Specifically, you can:
- Clear your conversion/recipe history anytime from within the app
- Reset all preferences to defaults from the Settings screen
- Opt out of personalized advertising via your device's Ads settings (see Advertising)
- Reset or limit your device's Advertising ID at any time in Android system settings
- Uninstall the app to permanently remove all locally stored app data
If you're in the EU/UK (GDPR) or California (CCPA/CPRA), note that since we do not operate any servers and do not collect personally identifiable information ourselves, most data-subject requests are already satisfied by the local controls above. For requests specifically about data Google's AdMob SDK processes, you can exercise your rights directly with Google via the links in the Advertising section.
8. Data Sharing
We do not sell, rent, or share your data with third parties, because we do not collect any personal data on our own servers to begin with. The only data flow to a third party is the ad-serving data described in the Advertising section, which is collected directly by Google's AdMob SDK on your device under Google's own privacy practices, not handed off by us.
9. International Users
Cup & Gram is available to users globally. Since the app itself stores data only locally on your device and does not transmit it to us, there is no cross-border transfer of your usage data by us. Ad-serving data handled by Google's AdMob SDK may be processed on Google's infrastructure in accordance with Google's own international data transfer safeguards.
10. Changes to This Policy
We may update this Privacy Policy from time to time, for example to reflect a new feature or a change in how ads are handled. Any changes will be posted on this page with a revised "Last updated" date at the top. Continued use of the app after changes are posted means you accept the updated policy.
11. Contact Us
If you have questions about this Privacy Policy or how Cup & Gram handles data, reach out:
- Developer: Mahesh Varma
- Organization: Jeweality
- Email: service@jeweality.com
- App: Cup & Gram - Kitchen Converter (
com.mtverse.cupgramconverter)