Privacy Policy

Last updated: 3 November 2026

This policy explains what information the PROOF app ("PROOF", "we", "us") collects, why, and what you can do about it. We keep it short and in plain language.

Who is responsible

PROOF is developed and operated by Marcos Vieira Moriani, Madrid, Spain. For any privacy question or request, email helloproofapp@gmail.com.

What we collect

• Account information from Google Sign-In: your name, email address and profile photo.
• Profile information you choose: display name, @username and profile photo.
• Content you create: goals, pacts (including your drawn signature), progress check-ins (numbers or how you feel), and the photos and videos you upload as proofs, with optional captions.
• Squad activity: the Squads you create or join, the props and messages you give, nudges, and the people you witness or block.
• Photo date: when you pick a photo or video from your gallery, the app reads the date it was taken on your device to check it is from today or this week. We do not store your location or other photo metadata.
• Device information for notifications: a push notification token and your time-zone offset, so we can send notifications at sensible local times.
• Feedback and reports you send us.

We do not sell your data, we do not show ads, and we do not use third-party tracking or advertising SDKs.

Our website and the iPhone waitlist

If you leave your email on our website to hear when PROOF is available on iPhone, we store that email, the date and how you found the site (for example "linkedin"). We use it only to send you that announcement, and we never share it. You can ask us to remove it at any time by emailing helloproofapp@gmail.com. The legal basis is your consent.

To know how many people visit the site, we count visits and button clicks together with the type of device (Android, iPhone or computer) and the source of the visit. We do not use cookies or third-party analytics, and we do not store IP addresses or anything that identifies you.

Why we use it

• To run the app: show your goals and proofs to the members of the Squads you share them with, count validations and consistency, and send the notifications you expect (props, nudges, reminders).
• To keep PROOF safe: review reports, remove content that breaks our rules and stop abuse.
• To improve the app using the feedback you send.

The legal basis is the performance of our agreement with you (providing the app) and our legitimate interest in keeping it safe. Notifications can be turned off at any time in Settings.

Who can see your content

Your proofs are visible only to you and to the members of the Squads you send them to. If you turn on "Share all my proofs" in Settings, members of all your Squads can see your full proof archive. Your name, @username and profile photo are visible to other PROOF users who share a Squad with you.

Where your data is stored

PROOF uses Google Firebase and Google Cloud (Firebase Authentication, Cloud Firestore, Cloud Storage, Cloud Functions and Firebase Cloud Messaging) as its service provider. Data may be stored on Google servers in the European Union or the United States, protected by Google's standard contractual clauses and security measures.

How long we keep it

• Proof videos are deleted automatically after 30 days; a still frame of the video is kept with the proof.
• Everything else is kept while your account exists.
• When you delete your account, your profile, goals, proofs, photos, videos and signatures are deleted, and you are removed from your Squads. Reports you sent may be kept for up to 12 months to keep the community safe.

Your rights

You can access, correct or delete your data at any time. Most of this can be done in the app (edit your profile, delete proofs and goals, or delete your account in Settings). You can also ask us for a copy of your data, object to its use, or make any other request under the GDPR by emailing helloproofapp@gmail.com. You also have the right to complain to the Spanish data protection authority (AEPD, www.aepd.es).

To delete your account, see how to delete your account.

Children

PROOF is only for people aged 18 and over. We do not knowingly collect data from anyone under 18. If you believe a child has created an account, contact us and we will delete it.

Changes

If we change this policy, we will update the date above and, for important changes, let you know in the app.