Last updated: October 19, 2026
Developer: Krepel Studio
Android package: com.krepelstudio.xbill
Contact: Krepelstudio@gmail.com
XBill: Invoice Maker & PDF ("XBill", "the App") helps users create and manage business profiles, clients, invoices, PDF documents, handwritten signatures, and manually recorded invoice payments.
Core invoicing features are designed to work on your device without creating an XBill account. A Google account is optional and is used only if you choose Google Drive backup and restore. An internet connection may also be required for Google Play purchases and restoring a purchase.
Depending on which features you use, XBill may process information you enter or select, including:
Business information: business names, contact details, addresses, logos, payment instructions, and any tax or bank details you choose to include on an invoice.
Client information: client names, company names, email addresses, phone numbers, addresses, and optional photos.
Invoice information: invoice numbers, dates, descriptions of goods or services, quantities, prices, currencies, taxes, discounts, totals, payment status, and manually recorded payments.
Documents and signatures: generated PDFs, document revisions, and handwritten signatures you choose to add or save.
App preferences: language, theme, vibration settings, and information needed to remember drafts and the free-feature limits.
This information is used to provide the features you request. Invoice contents, client records, and business records are stored locally in the App's private storage by default. XBill does not automatically upload them to a Krepel Studio server.
XBill stores the information required for its functions on your device, including invoice drafts, issued invoices, payment records, documents, and settings. Previously issued invoice versions may be retained to preserve document history.
If you select a business logo or client photo, XBill uses the image you select through Android's system file or photo picker. The App does not need permission to read your entire photo library or your phone's contacts for this purpose.
You may save a PDF or a local backup archive to a location of your choosing using Android's document picker. Copies saved outside XBill are controlled by you and, where applicable, the storage provider you select.
Google Drive backup is optional. If you choose to connect a Google account and start a backup, XBill uses Google authorization to request access to the App's own data area using the Google Drive drive.appdata permission.
A backup may contain the information stored in XBill, including business and client records, invoice and payment information, PDF files, logos, photos, signatures, and relevant preferences. The App transfers the backup directly to the app-specific storage area (appDataFolder) in your selected Google Drive account. This area is not displayed as ordinary files in My Drive. XBill does not request access to unrelated files in your Google Drive.
When you choose Restore, the App downloads an available backup from the connected account. Restoration requires confirmation because it may replace current local records.
Google account authorization and Drive storage are provided by Google and are subject to Google's terms and Privacy Policy. If Google provides account-identifying information for the connected account, XBill may display it within the App to help you recognize which account is connected; it is not used for advertising.
You can disconnect Google authorization using the App or your Google account controls. Disconnecting does not necessarily delete backups already stored in Google Drive. You can manage or delete the App's stored data using Google's available Drive and connected-app controls.
XBill does not add a separate password or end-to-end encryption layer to its backup archives. Google Drive transfers use secure HTTPS connections, but you should treat exported or stored backups as sensitive files.
Information received through Google Workspace APIs is used only for the user-requested backup and restore functions and is subject to the Google API Services User Data Policy, including its Limited Use requirements.
You decide when to export or share an invoice PDF. If you tap Share, XBill opens Android's system sharing interface and transfers the selected document to the app or recipient you choose. If you print a document, Android's printing system handles the request.
The privacy practices of any third-party app, recipient, printer service, or cloud storage location you choose are governed by that party's own policies. XBill does not automatically send invoices to clients or verify that a recipient has received a document.
XBill offers an optional, one-time Lifetime Pro purchase through Google Play Billing. Google processes the payment under its own terms and privacy practices. XBill may receive purchase-related information, such as the purchased product, transaction status, and purchase token, to unlock or restore Pro access.
Krepel Studio does not receive your full payment card number through XBill. Purchase entitlements are checked through Google Play and are not included in invoice backup archives.
XBill uses internet access for the optional Google Drive connection and purchase-related Google Play services. Android's system pickers, sharing interface, and printing services are used when you request those actions.
The intended App does not request broad access to files, direct access to phone contacts, location, camera, microphone, accessibility services, or notification access for its core invoicing features.
The planned third-party integrations are Google identity/authorization and Google Drive for optional backups, and Google Play Billing for Pro purchases. XBill does not use Google AdMob, third-party advertising, or advertising identifiers. It is not designed to include a third-party analytics or behavioral tracking service.
XBill is designed without a developer-operated backend for storing your business profiles, clients, invoices, PDFs, or signatures. Krepel Studio does not have independent access to your Google Drive files or your locally stored invoices.
Data may leave your device only when you use an applicable feature, such as Google Drive backup, PDF sharing, exporting to a cloud location, or Google Play purchasing, and when the relevant platform service processes the request.
We do not sell your personal information or use invoice contents, Google Drive backups, or client information for advertising.
If you contact Krepel Studio by email, we receive the information you voluntarily include in your message and use it to respond to your inquiry.
XBill uses Android's app storage protections for locally held application data and HTTPS for communications with Google services. No system can guarantee absolute security. Protect access to your device, Google account, and any PDFs or backup archives you save or share.
Because local backup ZIP files do not have an additional XBill password or end-to-end encryption layer, anyone who obtains an accessible copy may be able to read the information inside.
Your local records remain on your device until you delete them through available App functions, remove the App and its local data, or replace them through a confirmed restore. Existing exported PDFs, local backup files, previously shared documents, and Google Drive backups are separate copies and are not automatically deleted when you delete a record inside XBill.
You can choose not to connect Google Drive, disconnect its authorization, and manage stored backups using your Google account controls. You can manage Google Play purchases using Google Play's controls.
To ask about personal information that you voluntarily sent directly to Krepel Studio for support, or to request its deletion where applicable, contact Krepelstudio@gmail.com. We use and retain support correspondence only as needed to respond and to meet applicable legal obligations. Krepel Studio cannot remotely delete information held solely on your device or in your personal Google Drive account.
XBill is a general invoicing and business productivity app, not a service designed for children. We do not knowingly seek personal information from children through the App.
We may update this Privacy Policy when XBill's features, integrations, or data practices change. The updated version will state a new "Last updated" date. Material changes will be reflected in the published policy and in-app access to it.
For privacy questions or requests, contact:
Krepel Studio
Email: Krepelstudio@gmail.com
Website: https://krepelstudio.com