# Syswise: System Design Prep — Interview drills for engineers

> Interview drills for engineers (iPhone/iPad app by Cengizhan Hakan.)

- Source: https://appshunter.io/ios/app/syswise-system-design-prep/id6796688464 (this page in markdown: same URL + `.md`)
- Developer: [Cengizhan Hakan](https://appshunter.io/developer/6796688466)
- Category: Education, Developer Tools
- Price: Free with in-app purchases
- Age rating: 12+
- Requires: iOS 15.1 · 39 MB
- Languages: American English, Arabic, Bangla, Czech, Dutch, French (France), German (Germany), Greek, Hindi, Hungarian and 20 more
- Released: 2026-08-13
- Data updated: 2026-09-20
- User reviews in markdown: https://appshunter.io/ios/app/syswise-system-design-prep/id6796688464/reviews.md

## What is Syswise?

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

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Premium Weekly | $4.99 | per 7 days |
| Premium Annual | $39.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 1400 Gems | $4.99 | one-time |
| 500 Gems | $1.99 | one-time |
| 3000 Gems | $9.99 | one-time |



## Version history (last 3 releases)

### 1.1.1 — 2026-08-15

Onboarding is shorter. We no longer ask for your birth year at the start; you can set it any time in Settings.
Create an account or sign in straight from the Profile tab.
Long labels no longer run off the screen edge in German, Arabic and other languages.

### 1.1.0 — 2026-08-14

The app now speaks 30 languages. Pick yours in Settings, or leave it on System and it follows your phone. Questions and explanations stay in English for now.

### 1.0 — 2026-08-13

No release notes.

## More apps by Cengizhan Hakan

- [Paddock: Horse Racing Game](https://appshunter.io/ios/app/paddock-horse-racing-game/id6808928632)

All apps by Cengizhan Hakan: https://appshunter.io/developer/6796688466

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-20.*