This Privacy Policy explains how TripLedger (the "app") handles your information. The app is developed by Black & White Studio ("we", "us", "our"). By installing or using the app you agree to this policy.
TripLedger is developed by Black & White Studio, Dhaka, Bangladesh. Contact: info@blacknwhitestudio.com · +880 1945 936934.
TripLedger is an offline-first group travel manager. Your trip data — tours, members, expenses, deposits, settlements, checklists, itineraries and receipt photos — is stored only in the app's local Room database. We never see it; it is not uploaded to our servers; we have no servers that hold it. The only way trip data leaves the device is if you trigger a Google Drive backup (see section 6) or share a PDF/text export.
The app includes two third-party services from Google to support a free tier and an optional Remove Ads / Tip Jar purchase: Google AdMob (section 8) and Google Play Billing (section 10). Both are disclosed in detail below.
Everything you create is stored locally in the app's private storage (a Room database plus a private photo folder):
If you uninstall the app or clear its data, this information is permanently deleted from your device.
| Data type | Collected / sent? | Purpose | Optional? |
|---|---|---|---|
| Personal info (name, phone) | Stored on-device only; never sent | Identify members within tours | Yes — phone is optional |
| Photos (receipts, cover, gallery) | Stored on-device only; never sent | App functionality | Yes |
| Financial records (expenses, deposits, settlements) | Stored on-device only; never sent | App functionality (split & settle) | — |
| Files (backup ZIP) | Sent only if Drive backup is enabled | Backup & restore | Yes |
| Device / advertising IDs | Collected & shared by Google AdMob SDK | Advertising · analytics | No (resettable in Android Settings; removed by Remove Ads purchase) |
| Approximate location (IP-based) | Collected & shared by Google AdMob SDK | Advertising | No (removed by Remove Ads purchase) |
| App activity (ad interactions, app open/close) | Collected & shared by Google AdMob SDK | Advertising · analytics | No (removed by Remove Ads purchase) |
| App diagnostics / crashes (via Play Services) | Collected & shared by Google AdMob + Play Services | Analytics · App functionality | — |
| Purchase history (purchase tokens / SKUs) | Collected & shared by Google Play Billing | App functionality (Remove Ads, Tip Jar) | Only if you make a purchase |
Your trip data is never shared with third parties. The Google AdMob and Google Play Billing collection above is performed by Google's SDKs embedded in the app, governed by Google's policies. See sections 8–10 for full detail.
If you enable Google Drive backup, TripLedger requests the Drive scope needed to write to a private app folder (drive.appdata). The app uses this scope only to upload your backup ZIP and to download it on restore. Your backup files are visible only to you in Drive. You can revoke access at any time at myaccount.google.com.
TripLedger can write an encrypted local backup file (ZIP including the database and receipt photos) to a location you choose. We never receive it. Restoring is destructive — it replaces the current data — so the app requires explicit confirmation.
TripLedger's free tier is supported by ads served through the Google Mobile Ads SDK (Google AdMob). The app shows four ad formats:
To serve and measure these ads, the Mobile Ads SDK may collect and share with Google and its certified ad partners:
Google's full disclosure is at policies.google.com/technologies/ads, and the list of certified ad partners is published on Google's policy site. You can opt out of personalised ads in Android Settings → Privacy → Ads, reset your Advertising ID at any time, or remove all ads via the in-app purchase described in section 10. EU/UK users see a Google UMP consent prompt before any ads load, in line with GDPR/UK GDPR.
If you choose to watch a rewarded video, Google's reward callback fires after the video completes, and the app grants a local 1-hour ad-free pass. The pass is stored only on your device; no personal data is exchanged for the reward beyond the standard AdMob collection described in section 8.
TripLedger offers two managed products via the Google Play Billing library:
Triptripledger_remove_ads — non-consumable, one-time purchase. Permanently removes banner, interstitial, rewarded-prompt and app-open ads on every device signed in with the same Google Play account.tripledger_tip — consumable tip jar product. Sends a small thank-you to the developer; can be purchased more than once.Payment is processed entirely by Google Play. The app receives only the purchase token and product SKU needed to grant the entitlement — it never sees your payment details (card number, address, etc.). Google's terms apply: play.google.com/about/play-terms. Consumable tips are non-refundable except where required by law; refunds for the Remove Ads purchase follow Google Play's standard policy.
Your trip data lives in the app's private storage sandbox, accessible only to the app. Local backups are encrypted. Drive backups are stored in your own Google account and transmitted over HTTPS. Ad and purchase traffic to Google is also encrypted in transit. Because no trip data is uploaded to our servers, there is no server-side copy of your data to be breached.
We hold no trip data, so there is nothing for us to retain or delete. To remove everything from your device, delete individual tours / members in the app, clear the app's data, or uninstall it. Drive backups can be deleted from the app's settings or directly in Google Drive. You can reset your Android Advertising ID at any time in Android Settings; purchase history is managed by Google Play and remains tied to your Google account until you request its removal through Google.
TripLedger is a general-audience travel/finance utility (rated Everyone / PEGI 3) with a 18+ target audience and is not directed at children under 13. We do not knowingly collect personal data from children.
We may update this Privacy Policy as the app evolves. Material changes will be reflected here with a new date. Questions? Email info@blacknwhitestudio.com or WhatsApp +880 1945 936934.