Learn Coding - Off By One

Learn Coding - Off By One

Python, Java, JavaScript Code

4 ratings
4 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • July 17, 2025
  • August 17, 2026

Features

Learn Coding - Off By One screenshot #1 for iPhone
Learn Coding - Off By One screenshot #2 for iPhone
Learn Coding - Off By One screenshot #3 for iPhone
Learn Coding - Off By One screenshot #4 for iPhone
Learn Coding - Off By One screenshot #5 for iPhone
Learn Coding - Off By One screenshot #6 for iPhone
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About

This app offers Python coding practice focused on technical interview preparation. It helps users develop debugging instincts and problem-solving skills with daily challenges and detailed explanations.

Daily coding practice challenges
Detailed lesson explanations
Progress tracking
Focus on interview concepts
Privacy-first design
Learn Python on the go
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What's New in Learn Coding

2.1.0

August 17, 2026

Off By One has a new look and a bigger mission: learn to code, master the interview. • Fresh app icon with full dark mode support • New artwork across the Learn tab • The app now remembers your programming language between lessons • A simpler, cleaner Settings screen • Smaller download, plus polish and fixes throughout Five minutes a day. See you in there.

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Subscription plans

Premium Annually

Prepare for your dream job with lessons

$59.991 Year
3 Days trial
How to cancel Learn Coding subscription ⁉️

User reviews

U AND I CAN MAKE DREAMS ACHIEVABLE

Best of mark

Pretty good

Needs to support more languages and more types of challenges

Response from developer

We have listened to your feedback and just had a massive update where we added interactive step-by-step lessons that correspond to each daily puzzle to help users prepare for interviews! I can’t wait for you to try it out!

How to review problem?

Is there a way to see the problem afterwards? When I click into it after I have solved it all it shows is stats and an explanation, I would like to be able to view the code again.

Update: this app is really the best. There have been fresh problems every single day and I actually look forward to it instead of the dread I feel about leetcode!
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Response from developer

We have listened to your feedback, the latest version of the app has a ‘Review Code’ button on the stats page where you can review the puzzle, see the highlighted error line, and view the explanation! Thanks for the review, we take all reviews seriously and make sure to address any improvements. THANK YOU for enjoying the app and helping us build our community!!

How to review problem?

Is there a way to see the problem afterwards? When I click into it after I have solved it all it shows is stats and an explanation, I would like to be able to view the code again

Developer apps

FAQ

What is LeetPal?

LeetPal is a Python coding practice app designed to help users ace technical interviews. It focuses on developing debugging instincts and core problem-solving skills through daily challenges and detailed explanations.

How does LeetPal help with job interviews?

LeetPal provides practice based on real interview concepts, common mistakes, and interview patterns. It helps users build intuition for Big O, data structures, and algorithms, strengthening the exact skills recruiters look for.

What are the premium features in LeetPal?

Premium features require purchase and include a Weekly Learning Plan Setting and Python Data Structure and Algorithm Lessons. These are designed to offer a more structured and in-depth learning experience.

Does LeetPal require personal information?

No, LeetPal is privacy-first. It does not require an email, supports anonymous login, and does not sell or share personal data. This ensures a secure and private practice environment.

What are the subscription options for LeetPal?

LeetPal offers several subscription plans, including Premium Weekly and Premium Monthly options, with prices ranging from $1.99 to $9.99. There are also annual plans available for $14.99. Many plans include a 3-day free trial.

What devices does LeetPal support?

LeetPal is available on iPhone and iPod devices. It is designed for mobile learning, allowing users to practice coding on the go.

How often is LeetPal updated?

The latest version of LeetPal is 2.0.5, and it was last updated on January 26, 2026. This indicates a commitment to regular updates and improvements.

What is the age rating for LeetPal?

LeetPal has an age rating of 4+. This suggests it is suitable for a wide range of users, including younger learners interested in programming.