Arch StudySupport
Integration architecture, AI & ML and system design, explained simply.
Restore a subscription
Open the app, go to Settings and tap Restore purchases. Make sure you're signed in to the App Store with the Apple ID you used to subscribe.
Cancel or change your plan
On your iPhone, open Settings › your name › Subscriptions › Arch Study. You can also tap Manage subscription in the app's Settings tab. Cancelling stops the next renewal; you keep Pro until the end of the period you paid for.
Refunds
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What's free
The first lesson of each track (Integration, AI & ML, System Design), three integration patterns, sample flashcards and short quizzes are free. Pro unlocks every lesson, pattern, flashcard and quiz question.
Moving to a new iPhone
Your subscription follows your Apple ID: tap Restore purchases on the new phone. Study progress is stored on the device and doesn't transfer in this version.