PrepTap

Interview prep should fit into the moments you actually have. PrepTap turns algorithms and system design into focused, five-decision practice sprints made for iPhone. There is no essay box and no endless feed. Select the strongest choices, say how confident you are, and learn from immediate, option-by-option reasoning. PRACTICE WITH PURPOSE • Complete exactly five decisions in every sprint • Work across algorithms and system-design tradeoffs • See how many options each question requires • Build the habit without a keyboard LEARN THE REASONING • Understand why each selected or missed option matters • Get a concise mental model for the concept • Learn interview-ready language for explaining your judgment • Separate a confident answer from a lucky guess SEE WHAT YOU RETAIN • Follow your weekly learning rhythm • Explore a 24-concept Algorithms and System Design journey • Move concepts from New to Learning to Retained through demonstrated work • Review a clear summary after every sprint SECURE PROGRESS, READY TO RESUME Sign in with Apple is required; PrepTap does not request your Apple name or email. Progress stays protected on your device and completed practice syncs to your account. After a valid session has been restored, downloaded questions keep practice available during a temporary network outage. PrepTap is an independent educational product. It does not guarantee an interview or employment outcome and is not affiliated with any employer.