Voidline: Tower Defense

Privacy Policy

Effective October 14, 2026

Voidline: Tower Defense (the "Game") is made by Greenfield Labs LLC ("we", "us"). This policy explains what information the Game uses, why, and the choices you have. In short: we don't ask for your name or email, we don't track you, we don't run our own servers, the Game doesn't send your information to us or to any analytics or advertising company, and your saved game stays on your device. The only service the Game talks to is Apple's App Store, for in-app purchases.

Information the Game keeps on your device

The Game saves one file on your device, with a backup copy. It holds your progress: which sectors you have cleared, your best star rating and number of attempts on each, your best wave in Endless mode, your scrap, your Armory research levels and the permanent items you own. It also holds your settings (effects volume, music volume and haptics), which tutorial tips you have seen, a few statistics (missions played and won, enemies destroyed, scrap earned and spent, reward ads watched, placeholder ads shown between missions and purchases delivered) and the times you last claimed the free crate and the Armory's field salvage. If the save file is ever damaged, the Game keeps a copy of the damaged file next to it so it can fall back to the backup. The Unity engine and Unity's purchase software also keep a few internal settings of their own on your device, including a random installation number that Unity generates; this version of the Game doesn't send it anywhere.

The Game uses this information to let you continue where you left off. None of it is sent to us, and the Game doesn't sync it to a server or between devices. Deleting the Game deletes it from your device. Like other app data, it is included in your device backups (iCloud Backup or a backup to your computer), so restoring a backup brings your progress back. We don't have a copy, so we can't recover your progress if it's lost. Permanent purchases can be restored from Apple (see below); scrap packs, which are consumable, can't.

In-app purchases

Purchases are processed by Apple through the App Store. We never see or store your payment details. The Game talks to the App Store through Unity's in-app purchasing software (Unity IAP). When you open the Game it connects to the App Store to load current prices and to finish any purchase that was interrupted (for example if the Game was closed while a purchase was completing). When you buy something, Apple confirms the purchase and the Game records it on your device. Purchases are checked on your device only; we have no server that sees them. Ask to Buy is supported: the item arrives once the purchase is approved.

The Game has no subscriptions. Three items are permanent and can be restored on any device signed in to the same Apple Account with the "Restore purchases" button in Settings or in the Supply Depot: the Starter Pack (which also turns off ads between missions), Remove Ads and the Salvage Doubler. If you restore the Starter Pack on a device whose saved game doesn't already include it, its 2,500 scrap is delivered again. The four scrap packs (Scrap Cache, Scrap Crate, Scrap Container and Scrap Freighter) are consumable: each is delivered once and can't be restored.

Unity IAP doesn't send purchase information to Unity in this version of the Game: the Game doesn't include Unity's analytics service and isn't linked to a Unity project, so Unity's purchase reporting and diagnostics are inactive.

Advertising

This version of the Game contains no advertising software and doesn't work with any ad network. The ads you see are placeholders, labelled "TEST AD": an occasional ad between missions, and optional ads you can choose to watch for a reward (a revive, double scrap after a mission, a supply drop of extra credits during a battle, the free crate and the Armory's field salvage). They're drawn on your device, load nothing from the internet, open nothing when tapped and send no information anywhere. The Game never shows Apple's App Tracking Transparency prompt and never requests or reads your device's advertising identifier. Buying Remove Ads or the Starter Pack turns off the ads between missions; the optional reward ads stay available. If a future version adds a real ad provider, we'll update this policy before that version is released.

Game statistics and diagnostics

The Game counts things like missions played, enemies destroyed and scrap earned. These counts stay on your device and aren't sent to us or anyone else. The Game has no analytics service: it doesn't record what you do for us or anyone else. Unity's built-in analytics, crash reporting, performance reporting and engine diagnostics are all switched off.

If you've turned on Share With App Developers (iOS Settings > Privacy & Security > Analytics & Improvements), Apple shares crash reports and app usage statistics with us in a form that doesn't identify you. You can turn this off at any time.

Notifications and other device features

The Game sends no notifications and asks for no permissions: it doesn't use your camera, photos, microphone, location, contacts or Bluetooth. It uses your device's vibration (haptics), which you can switch off in Settings. The free crate and the field salvage use your device's date and time to decide when you can claim them again.

Other companies involved

Apple processes purchases and restores, delivers TestFlight builds and, if you've opted in, shares crash reports and usage statistics with us. See Apple's privacy policy. Unity Technologies makes the engine the Game is built with and the Unity IAP software; as described above, this version of the Game sends nothing to Unity. The Game includes no other company's analytics, advertising or attribution software.

What we don't do

Beta testing

If you test a pre-release version through Apple TestFlight, Apple shares limited information with us, such as your name or email address (as entered in your invitation), device and app version, crash reports and any feedback or screenshots you choose to send. We use it only to improve the Game. See TestFlight & Privacy. TestFlight builds otherwise work as described in this policy; purchases use Apple's test system and you aren't charged.

Children

The Game is a general-audience tower defense game. It isn't in the App Store's Kids category and is not directed to children under 13. We don't knowingly collect personal information from children, and the Game asks no one for personal information. Parents can block or approve purchases with Screen Time or Ask to Buy. If you believe a child's information has been collected, contact us and we'll help.

Your rights

Depending on where you live (for example under the GDPR or the CCPA), you may have rights to access, correct or delete personal information, or to object to its use. The Game sends nothing to us, and you can delete its saved data by deleting the Game (and any device backups that contain it). The only personal information we may hold is what you send us by email, which we use only to reply, and what Apple shares if you're a TestFlight tester. For your App Store purchase history, contact Apple. We're happy to help with any request: contact us at the address below.

Changes

If this policy changes, we'll update this page and its effective date. If a future version adds an ad network, analytics or anything else that collects information, we'll update this policy before that version is released.