Inkbill privacy policy

Effective 2 October 2026. Inkbill (package com.mysticapps.invoice_maker) is published by mysticapps.

The short version

Your invoices, estimates, clients and business details stay on your phone. There is no Inkbill account and no Inkbill cloud. We never receive them.
Inkbill has no storage, contacts, camera or location permission.
The app is free and shows ads. Google's ad, analytics and crash-reporting services receive device and usage data, as described below. They never receive client names, amounts, item descriptions, your business details or the content of any invoice.

Your invoices and business details

Everything you enter (your business profile and logo, clients, invoices, estimates, line items, notes and payment details) is stored in Inkbill's private storage on your device.

Android backup. Inkbill takes part in Android's own backup, so this data is included in your phone's backup to your Google account if you have backup turned on, and comes back when you set up a new phone. That backup is run by Android and Google under your Google account; we have no access to it. Turn it off in Android Settings → Google → Backup.
Backup file. Settings → Export backup writes one .inkbill file to the folder or app you choose. Restore backup reads a file you pick. The file goes only where you put it.
PDFs. When you share, save or print an invoice, the PDF goes only to the app, folder or printer you choose.
Your logo. You pick it with the Android photo picker. Inkbill only receives the one picture you choose, never your other photos, and keeps a resized copy in its private storage.

Uninstalling the app deletes everything stored on the device. Copies you shared, saved or backed up stay where you put them.

Data collected by third-party services

Inkbill uses these Google services. Each one collects the data listed, for the purpose listed, under Google's privacy policy.

Service	Data	Purpose
Google AdMob	Advertising ID, IP address, device model and OS, app interactions with ads	Showing ads, measuring them and preventing ad fraud. Ads are personalised only if you consent.
Google User Messaging Platform	Your consent choices, IP address (to decide which consent rules apply)	Asking for and storing ad consent where the law requires it
Firebase Analytics	App instance ID, coarse usage events (for example "an invoice with 2–5 items was previewed" or "an estimate was shared"), device model, OS version, country derived from IP	Understanding which features are used so we can improve the app
Firebase Crashlytics	Crash stack traces, device model, OS version, an installation ID	Finding and fixing crashes
Firebase Remote Config	An installation ID	Adjusting settings such as how often ads appear, without an app update

Analytics events record only whether a document is an invoice or an estimate, a rough item count (1, 2–5 or 6+), whether it was shared, saved or printed, whether the PDF has one page or more, and whether it has a logo. They never contain client names or details, amounts, currencies, item descriptions, invoice numbers, notes, your business details or anything else you type. Crash reports contain no document contents.

We do not sell personal data. We do not collect your name, email, contacts, precise location, photos or files.

Your choices

Ad consent. Where consent is required (for example in the EEA, UK and Switzerland), Inkbill asks before showing personalised ads. Change your choice at any time in Settings → Privacy choices.
Advertising ID. Reset or delete it in Android Settings → Privacy → Ads.
Delete everything. Delete documents and clients in the app, or uninstall it. To ask about data held by Google's services, contact us below and we will help, or use Google's own tools at myaccount.google.com.

Data retention

Firebase Analytics event data is kept for at most 14 months. Crashlytics crash reports are kept for 90 days. AdMob data is retained according to Google's policies.

Children

Inkbill is not directed at children under 13 and does not knowingly collect data from them.

Changes

If this policy changes, the new version will be published at this address with a new effective date.

Contact

contact@radiobro.store