AlgoFlex
Master coding interviews
$0.99 · Designed for iPad. Not verified for macOS.
Crack the coding interview without writing a line of code. 3,500+ algorithm problems broken into bite-size multiple-choice steps — pattern, approach, variables, code.
AlgoFlex is a smarter way to prep for coding interviews. Instead of staring at a blank editor, you work through each algorithm problem as a series of quick multiple-choice steps — so you actually learn how to think your way to a solution.
Every problem walks you through four stages: recognize the pattern, design the approach, choose the right variables, and assemble the implementation. With over 3,500 problems across the data structures and algorithms that interviewers love, you can practice anywhere — on the train, in line, between meetings — without a laptop.
From "Two Sum" to dynamic programming and graphs, AlgoFlex covers the full spectrum at easy, medium, and hard difficulty, with explanations on every option so each question teaches you something.
Features:
- 3,500+ algorithm problems across 10 categories: Arrays, Strings, Linked Lists, Trees, Graphs, Dynamic Programming, Sorting & Searching, Math & Logic, Backtracking & Recursion, Stack & Queue
- A 4-stage method that builds problem-solving intuition: pattern recognition → algorithm design → variable selection → code implementation
- Multiple-choice format you can practice one-handed, anywhere — no keyboard needed
- Explanations for every answer choice, right or wrong
- Easy, medium, and hard difficulty
- Progress tracking and completion celebrations per category
- Beautiful developer color themes (Dracula, Nord, Monokai, Solarized, One Dark and more) with syntax-highlighted previews
- Mark favorites to revisit
- 100% offline — no account required
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Jake McCuistion, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Modern Code LLC
- Size
- 964.6 MB
- Category
- Education
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - iPad
Requires iPadOS 16.4 or later. - Mac
Requires macOS 13.3 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Modern Code LLC
