PrepTap
Daily interview decisions
Only for iPhone
Free
iPhone
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.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
More questions. Fresher daily practice. Smoother sprints.
• Practice with 216 questions across algorithms and system design, including 192 new scenarios.
• Get a better mix of unseen questions and spaced reviews, with daily practice updating correctly as the day changes.
• Leave a question or its feedback safely, including when tapping Back repeatedly.
• Resume an unfinished sprint or replace it with a fresh set while keeping your recorded answers.
• Pull to refresh Today and receive catalog updates more reliably when returning to the app.
The developer, Sherwood Lee, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Sherwood Lee
- Size
- 2.7 MB
- Category
- Education
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Sherwood Lee