The Tell support

Yes. The whole app is free to download and use: all 42 technique cards, the countermeasures, every drill, the full Archive and the Lab. There is no subscription, paywall, paid tier or feature unlock, and no advertising.

They help cover maintenance and future Archive collections, and they unlock nothing. The U.S. storefront options are $0.99, $1.99, $2.99, $4.99 and $9.99; Apple may display localized prices in other storefronts. They are one-time consumable in-app purchases processed by Apple, not subscriptions and not charitable donations. The app works identically whether or not you buy one.

Apple processes the purchases and controls refunds. Go to reportaproblem.apple.com, sign in with your Apple Account, and choose the purchase. Stack Trace Studios cannot issue an App Store refund directly.

Yes. All content ships inside the app, so the Guide, drills, Archive, Lab and Present mode work offline. A connection is needed only to load or process an optional support purchase through the App Store, and to open a source link you choose to tap on an Archive artifact.

It is built on two rules. First, technique, never truth: the app explains how an artifact was constructed and never rules on whether a claim is true, so there are no fact-check verdicts and no live feed. Second, no contemporary targets: every drill artifact is invented, and the Archive holds historical material from five countries across its three collections. One of the twelve countermeasure cards, the Own-Side Drill, asks you to run the same checks on the last thing you shared approvingly, and the Lab's targets are invented towns, companies and candidates, never a real person, party or brand.

Yes. There are no accounts, no student data and nothing is submitted anywhere. Present mode runs an Archive comparison module as a projector view from one phone or iPad on a mirrored screen, with big type and a reveal on tap. The app is intended for high-school age and up; the Archive shows historical wartime propaganda with its context and documented consequences, and no atrocity photography.

Progress, streaks, mastery and tier position are stored on the device in the app's local storage. There is no export and no sync. An encrypted iPhone or iPad backup, or an iCloud device backup, may carry the app's data to a new device according to your Apple backup settings; deleting the app deletes its progress.

The bundled images come from institutions such as the U.S. National Archives, the Library of Congress, the Imperial War Museum and Wikimedia Commons. All but one are public domain; the exception is a German poster under a Creative Commons BY 4.0 licence, and the app marks it as requiring attribution. Each artifact shows its creator, its licence and a link to the original. Material that is still in copyright, such as tobacco-industry advertisements and internal memos, is not reproduced: it appears as a short attributed quotation with a link to the original. Check the licence shown on the artifact before reusing an image. For a rights question or a correction, email the address below.