// support
How Can We Help?
Find answers to common questions below, or reach out directly.
Is Go Interview Prep free?
Yes, the app is completely free to download and use. There are no subscriptions, no paywalls, and no account required.
Does the app work offline?
Yes. All questions and answers are stored locally on your device. You can study without an internet connection.
How do I save a question?
Tap the star icon (☆) on any question to save it to your favourites. Access all saved questions from the Saved tab.
How do I mark a question as known?
Open any question and tap the "Mark as Known" button. Known questions are dimmed in the list so you can focus on what still needs practice.
How many questions are there?
The app currently contains 200+ questions across 23 categories covering the full breadth of Go — from language basics to scheduler internals.
Will more questions be added?
Yes. We plan to add new questions and categories with future updates. Make sure automatic updates are enabled in the App Store to get them.
I found an incorrect answer — what should I do?
Please email us with the question ID and the correction. We review all feedback and publish fixes in the next update.
How do I reset my progress?
Go to Settings inside the app and tap "Reset Progress". This clears all saved questions and known marks.
Is there an Android version?
Not yet. The app is currently iOS only. An Android version may be released in the future.