Privacy Policy — PDF Interleaver

Introduction

This Privacy Policy explains how PromisingApps ("we", "us", or "our") collects, uses, and shares information when you use the PDF Interleaver mobile application (the "App") — com.promisingapps.pdfinterleaver.

By using the App, you agree to the practices described in this policy. If you do not agree, please stop using the App. Our other apps each have their own privacy policy; some of them share advertising-consent decisions with this App, as described under Advertising consent & consent syncing.

Your files stay on your device

We do not upload your documents. PDF Interleaver processes your PDFs, scanned documents, and images entirely on your device. Interleaving and merging pages, scanning documents, and cropping images are performed locally. Your source files and the files the App creates are never sent to us or to any server. Output files are saved only to your device's storage.

Document scanning (Google ML Kit Document Scanner) and image cropping run on-device. The App requests access to storage solely so you can pick the files you want to work on and save the results back to your device. This access is used on-device and is not used to collect or transmit your files.

Information we collect

We do not ask you to create an account, and we do not ask for your name, email, or postal address to use the App. The information collected falls into the following categories:

Information you choose to provide

Files you select — the PDFs, scans, and images you open in the App. These are processed on your device only, as described above.
Support communications — if you email us, we receive your email address and whatever you include in your message.

Information collected automatically

Our third-party partners (advertising and analytics providers, described below) may automatically collect:

Advertising identifiers — your Google Advertising ID, used to serve and measure ads.
Device & usage data — device model, operating system version, language/region, coarse network information, IP address, app-usage events, and crash/diagnostic data.
Ad-interaction data — which ads are shown and interacted with, for measurement and fraud prevention.

How we use information

To provide the App's core features (interleaving, merging, scanning, and cropping documents on your device).
To display advertising and to measure ad performance.
To manage your advertising consent choices (and, where applicable, sync them across our apps — see below).
To offer and process optional in-app purchases and subscriptions that remove ads.
To understand how the App is used, fix bugs, and improve reliability and features.
To comply with legal obligations and enforce our terms.

Advertising, analytics & other service providers

We use the following third parties. Each has its own privacy policy governing how it handles data.

Provider	Purpose	Policy
Google AdMob & Google UMP	Ad serving and EU/UK consent management	policies.google.com/privacy
Google Firebase (Analytics & Remote Config)	Usage analytics and remote feature configuration	firebase.google.com/support/privacy
Firebase Crashlytics	Crash reporting and diagnostics	firebase.google.com/support/privacy
Google Play Billing	Processing in-app purchases and subscriptions	policies.google.com/privacy

Document scanning and image cropping use on-device Google libraries and do not send your documents to these services.

Where required (for example, for users in the European Economic Area, the United Kingdom, and Switzerland), we use Google's User Messaging Platform (UMP) to ask for your consent before showing personalized ads or using certain identifiers. You can change or withdraw your choice at any time from within the App.

Consent syncing across our apps. This App is part of a group of apps operated by PromisingApps. The advertising-consent decisions you make under European privacy regulations may be shared and synchronized across the apps in this group. If you set your consent preferences in one of these apps, that choice can be applied to the others — so you are shown fewer, more consistent consent prompts. Only consent decisions governed by European regulations are synced, and only across the apps listed below. Each of these apps has its own separate privacy policy.

Apps in this consent group:

PDF Interleaver com.promisingapps.pdfinterleaver
View on Google Play
Video Splitter com.technicles.videosplitter
View on Google Play
Quotes Creator com.technicles.rapidquotes
View on Google Play

Purchases

The App may offer optional in-app purchases and subscriptions (for example, to remove ads). These transactions are handled by Google Play Billing. We do not receive or store your payment-card details; Google processes payment and shares only the information needed to confirm and manage your purchase.

Sharing of information

We do not sell your personal information. We share information only:

With the service providers listed above, to perform the functions described.
Between our own apps, for the limited purpose of advertising-consent syncing described above.
Where required to comply with law, respond to lawful requests, or protect the rights, safety, and property of our users or of PromisingApps.

Data retention

Files you process remain on your device under your control until you delete them; we never receive them. Data collected by our advertising and analytics partners is retained according to their respective policies.

Your rights & choices

Advertising consent: change or withdraw your consent at any time via the privacy/consent option in the App.
Reset advertising ID: reset or delete your Advertising ID in your device's Google settings (Settings › Google › Ads).
Permissions: revoke storage permissions in your device settings (some features may stop working).
EEA/UK (GDPR) and California (CCPA/CPRA): depending on where you live, you may have rights to access, correct, delete, or restrict processing of your personal data, and to opt out of the sale/sharing of personal information. Contact us to exercise these rights.

Security

We take reasonable measures to protect information. However, no method of electronic transmission or storage is completely secure, and we cannot guarantee absolute security.

Children's privacy

The App is intended for a general audience and is not directed to children. We do not knowingly collect personal information from children. If you believe a child has provided us with personal information, please contact us and we will take appropriate steps to delete it.

International data transfers

Our service providers may process information in countries other than your own, including the United States. Where required, these transfers are carried out under appropriate safeguards consistent with applicable law.

Changes to this policy

We may update this Privacy Policy from time to time. When we do, we will revise the "Last updated" date above and post the new version at this address. Significant changes may also be communicated within the App.

Contact us

If you have questions about this Privacy Policy or your data, contact us:

By email: [email protected]