Renowise

Privacy Policy

Last updated: 1 October 2026

Introduction

Reno-Wise BV, the company behind Renowise (company number 1039.278.982; "we", "our" or "us"), is responsible for the personal data processed through the Renowise mobile app and the renowise.app website. This policy explains what we collect, why, who helps us process it, how long we keep it and what rights you have.

We process personal data in line with the General Data Protection Regulation (GDPR) and Belgian data protection law. We collect only what the app needs to work, and features that are not needed to run it (analytics, push notifications, personalised ads, location) stay off until you agree to them.

1. Information We Collect

1.1 Your account

  • Email address and password. Your password is handled by our authentication provider and stored only in hashed form; we never see it.
  • If you sign in with Apple or Google, we receive your name and email address from that provider. Apple may give us a private relay address instead of your real one.
  • Optional profile details you choose to add: salutation, first and last name, phone number and date of birth.

1.2 Your property and renovation plans

To calculate an estimate, the app asks about the result you want: building type, year of construction, facades, windows, doors, roof, floor area, rooms, heating, ventilation, electrical work, solar panels, finishing level and region. We do not ask for your street address. When you are signed in, we also store the scenarios you save, the estimates calculated for them and the reference number printed on your reports.

1.3 Reports you email

When you email a PDF report, we process the recipient's email address, the scenario name and the PDF itself so that our mail server can deliver it. If you are signed in, a report can only be sent to your own account address. We record that a report was generated and delivered, but we do not keep a copy of the PDF or the email.

1.4 Messages you send us

  • Contact form on renowise.app: your name, email address, subject and message.
  • Contact requests in the app ("Get In Touch"): your name, address, email address and phone number, so that we can get back to you.

1.5 Technical and security data

  • App attestation: every request from the app carries a token from Firebase App Check (Play Integrity on Android, App Attest on iOS) that proves it comes from a genuine copy of the app. It does not identify you.
  • Usage limits: to prevent abuse we count requests per account. For guests we count per IP address, stored only as a one-way hash that cannot be turned back into the address.
  • Crash reports: if the app crashes, we receive technical details (error message, device model, operating system and app version) through Sentry. Email addresses and account identifiers are removed from these reports before they leave your device.
  • On Android, the app checks whether the device is rooted and shows a warning if it is. This check runs on your device only; the result is not sent to us.

1.6 Only with your consent

  • Analytics: off until you agree. With your consent, Firebase Analytics records which screens and features are used. It never receives scenario identifiers or the exact characteristics of your home. You can turn it off at any time in your profile.
  • News notifications: off until you agree. Only after you allow them does your device receive a notification token. Notifications are sent to everyone who follows a language, so we do not store your token.
  • Advertising: the app shows banner ads through Google AdMob. Before any ad is requested, Google's consent form asks whether ads may be personalised. If you refuse, you only see non-personalised ads. You can change your choice under Ad privacy choices in the app's settings.
  • Location: used only when you tap "use my location" in the contractor search. Your phone's own location service turns your position into a postcode; we do not store your coordinates. The postcode is kept on your device in your recent searches and cleared when you sign out.

1.7 The website

renowise.app uses privacy-friendly web analytics from our hosting provider to count page visits. It does not use cookies and does not identify individual visitors. The website stores one cookie, which remembers your language choice.

2. How We Use Your Information

2.1 To provide the service (legal basis: contract)

  • Create and manage your account
  • Calculate renovation cost estimates, EPC results and grant eligibility
  • Save your scenarios and sync them across your devices
  • Generate and email your PDF reports

2.2 To keep the service secure and working (legal basis: legitimate interest)

  • Verify that requests come from a genuine app
  • Limit requests to prevent abuse and keep costs under control
  • Find and fix crashes
  • Answer the messages you send us

2.3 With your consent (legal basis: consent)

  • Usage analytics
  • News push notifications
  • Personalised advertising
  • Using your location in the contractor search

You can withdraw consent at any time in the app. This does not affect processing that took place before you withdrew it.

2.4 Legal obligations

We may process or disclose data where the law requires it, for example in response to a valid order from a court or authority.

3. Who We Share Data With

We do not sell your personal data. We share it only with service providers that process it on our behalf, under our instructions:

3.1 Service providers

  • Hosting and database provider (hosted on AWS): authentication and database hosting.
  • Website and server hosting provider: hosts the renowise.app website and the servers that calculate estimates, relay EPC requests and send email.
  • Google Firebase: app attestation (App Check), analytics (with consent) and news notifications (with consent). See Firebase Privacy.
  • Google AdMob: banner advertising. See Google Privacy Policy.
  • Sentry: crash reporting, stored in Sentry's EU data region (Germany). See Sentry Privacy Policy.
  • Our email provider: delivers report emails and our replies to your messages.
  • Apple and Google sign-in: if you choose them, subject to the Apple and Google privacy policies.

3.2 The Flemish government's energy service

To calculate an EPC result, our server sends the characteristics of your building to the VEKA Energie API of the Flemish government. We do not send your name, email address or any other detail that identifies you.

3.3 Contractors and suppliers

The app does not pass your details to the contractors and suppliers in the directory. If you contact one of them, you do so directly, by phone, email or through their website.

3.4 Legal requirements

We may disclose data when required by law, a court order or a competent authority, or to protect our rights and the safety of our users.

4. Data Storage & Security

Account data, scenarios and estimates are stored in a hosted PostgreSQL database. Database rules make sure each user can only read and change their own data. All communication between the app, the website and our servers is encrypted with HTTPS.

On your device, your login session, draft questionnaire, saved scenarios and recent location searches are kept in the phone's secure storage (the iOS Keychain or the Android Keystore). On Android, this data is excluded from cloud backups and device-to-device transfers. Simple settings such as theme and language are stored as normal app preferences.

Only a small number of administrators can access the database, and they must sign in with two-factor authentication.

5. Guest Mode

You can use Renowise without an account to browse the news and the contractor directory and to fill in the questionnaire. Your drafts and scenarios then stay on your device only. Cost estimates are calculated on our servers and therefore require a free account. When you sign in on the same device, your questionnaire in progress carries over, and the estimate you asked for as a guest opens and is saved to your account.

6. Your Rights (GDPR)

You have the following rights regarding your personal data:

  • Access: ask for a copy of the personal data we hold about you.
  • Rectification: correct inaccurate or incomplete data. You can edit your profile in the app yourself.
  • Erasure: ask us to delete your account and its data. You can do this in the app or by emailing us.
  • Data portability: receive the data you gave us in a machine-readable format.
  • Objection: object to processing based on our legitimate interest.
  • Restriction: ask us to limit how we use your data.
  • Withdraw consent: switch off analytics, notifications or personalised ads at any time in the app.

To exercise these rights, email privacy@renowise.app. We answer within one month.

You can also lodge a complaint with the Belgian Data Protection Authority (dataprotectionauthority.be) or the data protection authority where you live.

7. Data Retention

  • Account, profile, scenarios and estimates: kept as long as your account exists.
  • When you delete your account, your account and all associated data are permanently erased.
  • Request counters used for usage limits: short-lived and removed automatically.
  • Report emails: not stored by us after they are sent.
  • Messages you send us: kept as long as needed to answer and follow up on your question.
  • Analytics data (with consent): kept for at most 14 months.
  • Crash reports: kept for up to 90 days.

Data stored only on your device is removed when you uninstall the app or clear its data. Your login session and recent location searches are also cleared when you sign out.

8. International Data Transfers

Some of our providers, such as Google, our hosting providers and Sentry, are based in or may process data in countries outside the European Economic Area, including the United States. Where that happens, the transfer is protected by the EU-US Data Privacy Framework or by the European Commission's Standard Contractual Clauses.

9. Children's Privacy

Renowise is not intended for anyone under 18. We do not knowingly collect personal data from children. If we learn that we have, we will delete it.

10. Changes to This Policy

We may update this policy when the app or the law changes. The date at the top of this page shows the latest version. If a change significantly affects how we use your data, we will also let you know in the app.

11. Contact

For questions about this policy or your personal data: