Syswise: System Design Prep
Interview drills for engineers
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
A new question every day. Answer it, read why, close the app. Ten minutes keeps the concepts warm until the interview.
Answer one system design question a day. Read why the answer is right. Close the app.
Syswise is a question bank with a path running through it. You start on scalability basics and work forward: caching, queues, sharding, consistency. Each unit is a short session of multiple choice questions taken from real interview scenarios, and every question ends with a written explanation of the correct answer and of the ones you did not pick.
Sessions run about ten minutes. That is deliberate. Nobody learns distributed systems in a weekend, but you can keep the concepts warm until the interview.
WHAT IS INSIDE
A path with sections and checkpoints, so you always know what comes next.
Four practice modes: review your mistakes, drill your weakest topics, spaced cards that have come due, and a daily challenge.
A readiness score built from your own practice, broken down by average mastery, weakest quarter and topic coverage.
A streak, a daily goal and a league, if that is what gets you to open the app.
WHO IT IS FOR
Engineers with a system design round on the calendar. Also anyone who has been hand waving about caches and queues for years and would rather stop.
PREMIUM AND GEMS
Premium turns your weak areas into an ordered 7 day plan and lifts the session uptime limit. Premium Weekly is 4.99 USD per week, Premium Annual is 39.99 USD per year, and both renew until you cancel in your Apple ID settings. Gems are separate one time purchases that restore uptime early or protect a streak. The path itself is free, and the uptime limit resets on its own if you would rather wait.
Privacy policy: https://syswise.app/privacy-policy
Terms of use: https://syswise.app/terms-of-use
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The developer, Cengizhan Hakan, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
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Information
- Seller
- Cengizhan Hakan
- Size
- 41.1 MB
- Category
- Education
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 29 more
- English, Arabic, Bengali, Czech, Dutch, French, German, Greek, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Polish, Portuguese, Punjabi, Romanian, Russian, Simplified Chinese, Spanish, Swedish, Tamil, Telugu, Thai, Turkish, Ukrainian, Urdu, Vietnamese
- Age Rating
13+
- 13+
- Frequent
Contests
- In-App Purchases
Yes
- Premium Annual $39.99
- Premium Weekly $4.99
- 3000 Gems $9.99
- 500 Gems $1.99
- 1400 Gems $4.99
- Copyright
- © 2026 Cengizhan Hakan