Legal
Privacy policy for Montari Invoice
Last updated: 6 October 2026
This policy covers the Android app Montari Invoice (package name nl.montari.invoice), published by Montari, Apeldoorn, the Netherlands. For the website montari.nl a separate privacy statement applies (in Dutch).
In short
Montari Invoice works without an account and without a server of ours. Everything you enter stays on your own phone. We cannot see your invoices, your clients or your photos. Data only leaves your device when you share something yourself, for example a PDF to your client or a backup file to your own storage.
What the app stores
You enter the data yourself. This can include:
- Business details such as business name, address, tax ID, payment instructions, logo and signature.
- Client details such as name, address, email address, phone number and tax ID.
- Documents such as invoices, estimates and receipts with their lines, prices, taxes, payments, notes, photos and signatures.
- Saved items such as product and service names and prices.
All of this is stored in the app’s private storage on your device.
What happens to that data
The app does not send this data to us or to third parties. There is no Montari account, no Montari server, no advertising network, no analytics and no crash reporting in the app.
Data leaves your device only when you choose to:
- You share a document as a PDF, for example by email or a messaging app. You choose the recipient.
- You export a CSV file and share it, for example with your accountant.
- You save a backup file and store or share it yourself.
Android system backup
The app allows Android’s built-in backup. If you have turned on backup to your Google account on your phone, Android may include the app’s data in that backup so it can be restored on a new phone. That backup is handled by Google under Google’s privacy policy and your own backup settings; we have no access to it. You can turn it off in your phone’s settings.
Subscriptions and payments
You can subscribe to Montari Invoice Pro in the app. Payment is handled by Google Play Billing.
- We do not process paymentsand never see your payment details. Your payment method and transactions are handled by Google under Google’s privacy policy.
- The app asks Google Play whether a subscription is active on your Google account. The answer is only whether Pro is active; no personal details. The app keeps that answer on your device only.
- Without a subscription you can always open, share and back up the documents you made. Your data is never locked behind a paywall.
Permissions
- Internet, network state and Google Play Billing: technically required by the app framework and for subscriptions through Google Play. These are normal permissions that Android grants without asking. The app itself does not send your data anywhere.
- No camera, microphone, contacts or location permission.When you add a logo or photo, Android’s own picker opens and gives the app only the image you choose.
Retention and deletion
You decide how long you keep your data. You can delete documents, clients and items in the app. Uninstalling the app removes its data from your device. Because we hold no copy, we cannot restore anything for you, so make a backup now and then. You are responsible for any legal obligation to keep your business records.
Your role and ours under the GDPR
Your clients’ data is stored only on your device and we have no access to it, so you are the controller of that data. We only provide the software and do not process your clients’ personal data.
Children
Montari Invoice is a business app and is not directed at children.
Changes
If the app changes, for example if an account or sync feature is added, we will update this policy before that feature goes live.
Contact
Questions about your privacy or this policy? Email info@montari.nl.