CostMate — Privacy Policy

Last updated: August 27, 2026

CostMate ("the app") is a product-costing tool for small manufacturers, published by Obura. This policy explains what data the app handles and how.

Data we collect

Account data. When you create an account we store your email address and a hashed password. If you sign in with Google, we receive your email address and basic profile information from Google; we never see your Google password.
App content you create. The business details, materials, products, recipes, prices, equipment, expenses, notes and photos you enter are stored so the app can calculate your costs and sync your data across sessions.
Local preferences. Theme and language choices are stored only on your device.
Purchase data (only if you subscribe). If you buy the optional Pro subscription, we process your subscription status and store receipt — never your card or bank details. See "Payments and subscriptions" below.

What we do NOT do

No advertising, and no advertising or analytics SDKs.
No selling, renting, or sharing of your data with third parties for their own purposes. The only third parties that process data on our behalf are our infrastructure providers (Supabase, Google sign-in, and — only if you subscribe — RevenueCat and your app store).
No collection of contacts, location, call logs, or SMS.

Where data is stored

Account data and app content are stored on Supabase (our database and authentication provider), protected by row-level security so each account can only access its own data. Traffic between the app and the server is encrypted (HTTPS). Google sign-in is processed by Google (see Google's privacy policy).

Payments and subscriptions

CostMate offers an optional Pro subscription. Payments are processed entirely by the app store you bought it from — Google Play on Android, the App Store on iOS — and we never see your card or bank details. Subscription status is managed by RevenueCat, our subscription infrastructure provider, which receives a pseudonymous user identifier and purchase information (product, price, store receipt) solely to validate purchases and keep your Pro status in sync. If you never subscribe, no payment data is processed at all.

Permissions the app uses

Internet — required to sync your data.
Camera / photos — only if you choose to attach a photo to a material, product, or your business logo. Photos are used for nothing else.

Data retention and deletion

Your data is kept for as long as your account exists. You can permanently delete your account and all associated data at any time from within the app: Settings → Account → Delete account. Deletion is immediate and removes your account, business data, and uploaded photos from our systems. If you can no longer sign in, see how to request deletion or contact us at the address below.

Children

CostMate is a business tool and is not directed at children under 13.

Changes

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

Contact

Questions or data deletion requests: comporell@gmail.com