Build in Public

Privacy

Updated on October 24, 2026.

In short

  • There’s no account and no login. If you haven’t bought anything yet, you’ll see some Google ads (AdMob) in the game; any purchase removes the forced ads, and rewarded videos stay optional. The advertising identifier (IDFA) is only used if you allow it in the iPhone prompt; without it, ads aren’t personalized.
  • The app includes the Meta SDK to measure our ads on Facebook and Instagram: it tells Meta when the app is opened and when purchases are made, with an anonymous ID. Tracking with the IDFA only happens if you allow it.
  • Your progress (the company, the money, the investments, the cards, the Diamonds and the achievements) is stored on your iPhone and, if iCloud is on, in your iCloud account. We never receive this copy.
  • Payments are processed by Apple. To confirm the Company Club, the packs and Diamonds, the app uses RevenueCat, which receives an anonymous purchase ID, the purchase history and Meta’s anonymous ID, used only to link the purchase to the ad; never your name, your email or an account.
  • Partnerships: when you found your company, the app registers it on our server with an anonymous device ID (created by the app, no account), the company’s name, field and logo, and the language. After that, it sends the days you played and the game revenue for the week. This lets your partners see your company, activates the partnership and powers the weekly ranking, which only your partners can see. None of this identifies you, and the server never receives your name, your email or your contacts: the invite goes through the iPhone share sheet.

Who is responsible

The publisher of Build in Public, shown as the seller on the app’s App Store page, is responsible for the data described here (the “data controller”). Contact: contato@viniciusfreire.dev.

What stays on your device

The app keeps in its own storage, on your iPhone:

  • the company’s name, field and logo;
  • your settings (language, sounds, alerts, text size, etc.);
  • your game progress: the money, the investments, the unlocked places, the team, the cards, the Diamonds and the achievements;
  • the purchase records: which product, when, how long it’s valid and the transaction number.

This data is only used to make the app work. If iCloud is on on your iPhone, the app also keeps a copy of your progress in your iCloud account (Apple’s key-value storage), so your company can come back on a new phone. That copy stays with Apple, in your account: we receive nothing. Apart from what Partnerships sends (see the summary), none of it goes to a server of ours.

Ads in the game (Google AdMob)

If you haven’t bought anything yet, you’ll see a few ads: a banner on the Invest and Company screens, now and then a full-screen video after an order is delivered, and one when you come back after a few hours. There are no ads in the first 24 hours or the first minutes of play. Any purchase removes these forced ads. Rewarded videos stay available to everyone and only play if you choose to watch them.

To choose, show and measure ads, the Google SDK receives device data such as the model, the system version, the language, the approximate region based on the network, and your interactions with the ad. The advertising identifier (IDFA) is only included if you allow tracking in the iPhone prompt; without permission, ads aren’t personalized. In Europe and the United Kingdom, the app first shows Google’s privacy message, and you can review your choice in Settings › About › Ad privacy. Google handles this data under its own policy: policies.google.com/privacy.

Notifications

The game’s alerts (cash box full, rent time, new missions and the card of the day) are local notifications: iOS schedules them on your iPhone itself, and no server sends them. iOS asks for your permission first, and you can turn each one off in Settings › Alerts or in the iPhone’s Settings.

Ad revenue

When the shop is on, RevenueCat receives the estimated revenue of each ad shown, with the same anonymous identifier used for purchases, only so the developer can see total ad and purchase figures. None of this includes your name, email or Apple Account.

Backup

“Export file” (or “Export as text”) creates a copy of your app data. You choose where to save it or who to share it with, through the iPhone’s share sheet; we don’t receive a copy. If you keep the file in a cloud service (such as iCloud Drive), that service’s privacy policy applies.

When you import a backup, any purchases in the file are ignored: the Company Club and the old Pro come back through “Restore purchases”.

Purchases: Apple and RevenueCat

The Company Club, the packs and Diamonds are paid for through the App Store. Apple charges you and handles your payment details under the Apple Privacy Policy (www.apple.com/legal/privacy). We never receive your name, your Apple Account or your card details.

To show prices, complete and restore purchases, and check whether the Company Club is active, the app uses RevenueCat, a service of RevenueCat, Inc. (United States) that verifies purchases with Apple. RevenueCat receives:

  • an anonymous ID, created at random by the app, with no link to your name, email or Apple Account;
  • the anonymous ID that the Meta SDK creates in the app, used only to link the purchase to the ad that brought you, with no name, email or account;
  • the purchase history of that ID: products, dates, validity, price and currency, store country and transaction numbers;
  • technical connection data, such as the app and iOS versions and the IP address, which any internet service receives.

The app contacts RevenueCat even if you never buy anything, to show prices and check for purchases; in that case there is no purchase history. We use this data only to unlock and restore what you bought and to see sales figures in the RevenueCat dashboard. Apart from the Meta ID, used only to link the purchase to the ad, we don’t use this data for advertising or to track you across other apps or websites.

RevenueCat processes this data on our behalf, under the RevenueCat Privacy Policy (www.revenuecat.com/privacy). Because RevenueCat is based in the United States, this data may be processed outside your country.

What we don’t collect

We don’t ask for your name, email, phone number or precise location. There’s no login. The app only uses the advertising identifier (IDFA) if you allow tracking in the iPhone prompt, as explained in the summary. The app doesn’t read your other apps, contacts, photos or notifications, and doesn’t use the camera or microphone.

If you contact support

When you tap “Contact support” or “Send a suggestion”, the app opens your email app with a ready-made message that includes details such as the app version and the system. We only receive what you choose to send: your email address and your message. We use them only to reply, and we delete them if you ask.

Information Apple shares with us

Apple may show us aggregated statistics in App Store Connect, such as downloads and sales, and crash reports from people who chose to share analytics with app developers in the iPhone’s settings. This information doesn’t identify you.

How long data is kept and how to delete it

  • On your device: the data stays until you use Settings › Data › Start over (which erases your progress but keeps your Company Club) or delete the app (which erases everything the app saved on the device).
  • In your iCloud: the copy stays in your account. Start over replaces it with the new company once that company gets past the very beginning. Deleting the app doesn’t delete this copy, and it comes back if you install the app again. Without iCloud on on the iPhone, the app doesn’t use the copy.
  • On the Partnerships server: your company, the days you played and your weeks stay until you tap Settings › Company › Partnerships › Delete the company from the server, or until 180 days without use. Deleting undoes the partnerships on both sides.
  • At RevenueCat: the anonymous IDs (the purchase one and Meta’s) and the purchase history are kept for as long as they’re needed to confirm and restore your purchases. To ask for them to be deleted, write to contato@viniciusfreire.dev; we may ask for a detail of the purchase (such as the order ID on Apple’s receipt) to find the record. Your purchases remain valid with Apple, and the Company Club can come back through “Restore purchases”, which creates a new record.
  • Support emails: kept for as long as we need them to help you.

Your rights

Depending on where you live (for example, under the GDPR in the European Union or the LGPD in Brazil), you can ask to access, correct, receive a copy of or delete your personal data, and object to its processing. The data on your device is under your direct control. For the data held by RevenueCat and for support emails, write to contato@viniciusfreire.dev.

We process purchase data to perform the purchase contract you entered into, and support emails to answer your request. You can also complain to the data protection authority in your country.

Children

The app doesn’t ask anyone, of any age, for personal data, and it isn’t made for children. The ads requested from Google are rated for general audiences and are only personalized with your permission. On Apple child accounts, the iPhone turns off tracking requests, so the app doesn’t use the IDFA. If a child makes a purchase, RevenueCat receives the same anonymous data described above, and Meta receives the events without the IDFA. Purchases follow App Store rules, including Apple’s parental controls (such as Family Sharing and Screen Time).

Changes to this policy

If the app starts handling data differently (for example, if it ever gets accounts), this policy will be updated beforehand, explaining what changes and with the new date. Last updated: November 8, 2026 (the copy of your progress in iCloud).

Contact

Questions about privacy: contato@viniciusfreire.dev.