Power System Lab

Crosswords: updated puzzle-language handling and separate Russian and English saves. These changes are designed to preserve the selected language, entered letters and progress when switching languages and reopening the app. Native iPad support with screen rotation and adaptive layouts for the learning island, games, missions and tools. Two new games in Games: • Knowledge Tower: a crane, container physics, short facts and separate weekly and all-time leaderboards. • Name the equipment: 250 photographs, four answer choices, explanations of each item's purpose and revision of mistakes. Progress syncs with your account. English or Russian selected on the sign-in screen is retained after authentication. Data information now covers the new games and leaderboard. Main features require a subscription. Eligible Apple Accounts receive 3 free days, followed by US$4.99/month or US$39.99/year in the US storefront. Apple shows localized prices; the year is charged upfront. One introductory offer per Apple Account in the subscription group, not per registration. Ineligible accounts start the paid period immediately. The subscription renews automatically; cancel through Apple at least 24 hours before the trial ends to avoid the first charge. Account deletion does not cancel the subscription. Support, legal documents, restore and account deletion remain available without purchasing.