# Hourly DSA: Interview Prep — Daily Algorithms & Coding Quiz

> Daily Algorithms & Coding Quiz (iPhone/iPad app by Caleb Lee.)

- Source: https://appshunter.io/ios/app/hourly-dsa-interview-prep/id6807262406 (this page in markdown: same URL + `.md`)
- Developer: [Caleb Lee](https://appshunter.io/developer/1849770282)
- Category: Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.4 · 65 MB
- Languages: American English
- Released: 2026-09-10
- Data updated: 2026-09-14
- User reviews in markdown: https://appshunter.io/ios/app/hourly-dsa-interview-prep/id6807262406/reviews.md

## What is Hourly DSA?

Build your coding interview instincts, one short session at a time.

Hourly DSA helps you practice data structures and algorithms in the spare moments of your day. Answer focused questions, recognize the right approach, and understand why it works.

MAKE EVERY BREAK COUNT
Work through a five-question daily set or choose a topic to practice. Short prompts and tap-to-answer choices make it easy to fit a little interview prep between classes, meetings, or whatever comes next.

LEARN TO SPOT THE PATTERN
Practice the clues that point to a hash map, two pointers, sliding window, binary search, and more. Build the habit of asking: which approach fits this problem, and why?

THINK THROUGH THE CODE
Predict the output of short snippets, reason about time and space complexity, and catch common misconceptions. Focus on the thinking behind a solution with compact questions you can work through on your phone.

UNDERSTAND EACH ANSWER
Get immediate feedback and a concise explanation after every question. See the key idea while your reasoning is still fresh.

KEEP PRACTICE IN SIGHT
Add widgets to your Home Screen or Lock Screen to keep questions, interview patterns, and your streak close at hand.

BUILD A DAILY HABIT
Track your practice and day streak as you return for another short session. Explore foundational, core, and advanced topics at your own pace.

TOPICS INCLUDE
Arrays and hash maps, two pointers, sliding window, stacks, binary search, linked lists, trees, heaps, backtracking, graphs, and dynamic programming.

Whether you're studying computer science, preparing for a software engineering interview, or refreshing the fundamentals, make room for a little DSA every day.

SUBSCRIPTION REQUIRED
Hourly DSA requires a subscription for practice and widgets. Choose annual with a 7-day free trial for eligible subscribers, or monthly without a trial. Both plans include every topic, unlimited practice, missed-question review, weak-topic drills, progress, and widgets.

After the annual trial, your subscription automatically renews at the annual price shown before purchase unless you cancel at least 24 hours before the trial ends. Monthly subscriptions start at purchase and renew monthly. Manage or cancel your subscription in your App Store account settings.

Privacy Policy: https://hourlydsa.com/privacy
Terms of Use: https://hourlydsa.com/terms

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Hourly DSA Monthly | $4.99 | per month |
| Hourly DSA Annual | $29.99 | per year |



## Version history (last 2 releases)

### 1.0.1 — 2026-09-13

Various bug fixes and improvements.

### 1.0 — 2026-09-10

No release notes.

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## More apps by Caleb Lee

- [Superlist: Remember Everything](https://appshunter.io/ios/app/superlist-remember-everything/id6755491885)
- [StudyShare: AI Flashcards App](https://appshunter.io/ios/app/studyshare-ai-flashcards-app/id6755916970)
- [Photo to Recipe App: Vemi!](https://appshunter.io/ios/app/photo-to-recipe-app-vemi/id6758108443)

All apps by Caleb Lee: https://appshunter.io/developer/1849770282

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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 2026-09-14.*