Coding Practice - Off By One 4+
Coding Practice Interview Prep
I JUST WANT LLC
Designed for iPhone
-
- Free
- Offers In-App Purchases
iPhone Screenshots
Description
Coding practice built for interviews. Master core patterns, Big O, and code fluency to land your next job offer with confidence.
Off By One - Coding Practice for Interviews
Sharpen your coding skills. Land your next job.
Off By One is the coding practice app designed to help you ace technical interviews by training your debugging instinct and core problem-solving skills.
CODING PRACTICE THAT MATTERS
° Daily practice designed around real interview concepts
° Code snippets in JavaScript, Java, and Python
° Spot the bug, fix it fast, and learn the right approach
° Based on common mistakes and interview patterns
PREPARE UNDER PRESSURE
° Train with timed challenges — just like a real interview
° Select the buggy line of code to test accuracy and speed
° Benchmark your performance against other developers
° Stay motivated with streaks and rankings
LEARN & MASTER INTERVIEW SKILLS
° Detailed explanations after every challenge
° Build intuition for Big O, data structures, and algorithms
° Practice across multiple languages to stay versatile
° Strengthen the exact skills recruiters look for
PRIVACY-FIRST
° No email required
° Anonymous login supported
° No personal data sold or shared
FEATURES
° Daily coding practice challenges
° Streaks and progress tracking
° Global and personal performance stats
° Optional daily reminders to keep you consistent
Perfect For
° Developers preparing for coding interviews
° Computer science students
° Professionals sharpening problem-solving speed
° Anyone looking to turn practice into job offers
Privacy Policy: https://www.ijustwantagoodjob.com/off-by-one/privacy-policy
Terms of Service: https://www.ijustwantagoodjob.com/off-by-one/terms-of-service
What’s New
Version 1.5.1
New pricing model to support a monthly plan and a cheaper yearly plan, so more people can enjoy! Have fun getting ready for your interviews!
Ratings and Reviews
Pretty good
Needs to support more languages and more types of challenges
Developer Response ,
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!
Developer Response ,
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!!
App Privacy
The developer, I JUST WANT LLC, 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 Linked to You
The following data may be collected and linked to your identity:
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- User Content
- Identifiers
- Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Information
- Seller
- I JUST WANT LLC
- Size
- 34.6 MB
- Category
- Education
- Compatibility
-
- iPhone
- Requires iOS 15.1 or later.
- iPod touch
- Requires iOS 15.1 or later.
- Mac
- Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
- Apple Vision
- Requires visionOS 1.0 or later.
- Languages
-
English
- Age Rating
- 4+
- Copyright
- © I JUST WANT LLC
- Price
- Free
- In-App Purchases
-
- Premium Annually $49.99
- Premium Annually (1 Year) $24.99
- Premium Monthly (1 Month) $4.99
- Premium Weekly $2.99