# Type Systems Fundamentals — Practice Offline Quizzes

> Practice Offline Quizzes (iPhone/iPad app by Tsuyoshi Sezaki.)

- Source: https://appshunter.io/ios/app/type-systems-fundamentals/id6774276731 (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: 2026-06-03
- Data updated: 2026-08-13
- User reviews in markdown: https://appshunter.io/ios/app/type-systems-fundamentals/id6774276731/reviews.md

## What is Type Systems Fundamentals?

Type Systems Fundamentals is an independent study app for building confidence with core type-system ideas through focused practice.

Designed for students, self-taught developers, compiler enthusiasts, and interview prep, it helps you review fundamentals, practical skills, common pitfalls, and advanced concepts with 160 questions.

Features:
- FSRS spaced-repetition intervals to keep review efficient
- Weak-point heatmap to show where to focus next
- Daily challenge for consistent practice
- Mock exams for timed review sessions
- Explanation included with every question
- Offline practice for studying anywhere
- No account or login required

Use it to strengthen your understanding of static and dynamic typing, inference, polymorphism, subtyping, soundness, generics, variance, and related concepts.

Independent study app for Type Systems Fundamentals 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 — 2026-06-03

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 2026-08-13.*