# Process Synchronization — Drill 160 Qs Offline

> Drill 160 Qs Offline (iPhone/iPad app by Tsuyoshi Sezaki.)

- Source: https://appshunter.io/ios/app/process-synchronization/id6773914001 (this page in markdown: same URL + `.md`)
- Developer: [Tsuyoshi Sezaki](https://appshunter.io/developer/1886356149)
- Category: Education
- Price: Free
- Age rating: 4+
- Requires: iOS 15.1 · 38 MB
- Languages: American English
- Released: 2026-06-02
- Data updated: 2026-06-19
- User reviews in markdown: https://appshunter.io/ios/app/process-synchronization/id6773914001/reviews.md

## What is Process Synchronization?

Process Synchronization is an independent study app for learning and reviewing core operating systems concurrency topics through focused practice.

Built for CS students, interview prep, and anyone strengthening fundamentals, it covers Fundamentals, Practical Skills, Common Pitfalls, and Advanced Concepts with 160 questions and clear explanations.

Features:
- FSRS spaced-repetition intervals to review at the right time
- Weak-point heatmap to spot topics that need more work
- Daily challenge for consistent practice
- Mock exams for timed review
- Explanations with every question
- Offline practice with no account setup

Practice critical sections, locks, semaphores, monitors, race conditions, deadlocks, producer-consumer patterns, readers-writers problems, and synchronization design tradeoffs.

Independent study app for Process Synchronization practice. Not affiliated with, endorsed by, or sponsored by any company, certification body, exam operator, or vendor. All trademarks belong to their respective owners.

Practice offline, no login required.


## Version history (last 1 release)

### 1.0 — 2026-06-02

No release notes.

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All apps by Tsuyoshi Sezaki: https://appshunter.io/developer/1886356149

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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 2026-06-19.*