# Tree Data Structures — Drill 160 Offline Questions

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

- Source: https://appshunter.io/ios/app/tree-data-structures/id6773374946 (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: 2026-05-28
- Data updated: 2026-06-11
- User reviews in markdown: https://appshunter.io/ios/app/tree-data-structures/id6773374946/reviews.md

## What is Tree Data Structures?

Tree Data Structures is an independent study app for learners who want focused practice on trees, traversal, recursion, balancing ideas, and common implementation mistakes.

Built for computer science students, self-taught developers, interview candidates, and anyone reviewing data structure fundamentals, the app turns 160 explanation-backed questions into structured daily practice.

Topics include:
- Fundamentals
- Practical Skills
- Common Pitfalls
- Advanced Concepts

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

Practice offline, no login required.

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


## Version history (last 1 release)

### 1.0 — 2026-05-28

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 2026-06-11.*