Question 1

Do you offer a free trial?

Accepted Answer

The free tier includes unlimited code editor and compiler access, plus 5 AI calls/day. Upgrade to Standard for higher AI quotas, with annual plans offering subscription discounts and course purchase discounts.

Question 2

What's the difference between IDE subscription and courses?

Accepted Answer

IDE subscription is a monthly/annual tool subscription including AI calls, compilation boost, etc. Annual plans save 30%-33% on subscription. Additionally, Standard annual members get 10% off courses, and Pro annual members get 20% off courses. Courses are one-time purchases — single courses are valid for 1 year, and course bundles for 3 years. They can be purchased separately or as discounted course bundles.

Question 3

How do I cancel my IDE subscription?

Accepted Answer

You can cancel your subscription by visiting the billing page. You'll retain access until the end of your current billing period.

Question 4

What is the refund policy?

Accepted Answer

IDE subscriptions can be cancelled anytime — you keep access for the current billing period and won't be charged again, but payments already made are non-refundable. Courses and course bundles are one-time purchases and are also non-refundable.

Question 5

What happens when AI quota runs out?

Accepted Answer

After quota is reached, you'll be throttled. You can also purchase quota top-up packs for immediate restoration. Quota resets automatically each day/month.

Question 6

What course bundles are available?

Accepted Answer

We offer a CSPJ Bundle ($109, includes L1-L3 courses) and a Full Course Bundle ($239, includes all L1-L4 courses). Both are one-time purchases with 3-year access, offering better value than buying individually.

Question 7

Which C++ standards are supported?

Accepted Answer

Default is -std=c++17, you can switch to C++11/14/20/23 in settings panel.

Question 8

Is my code saved permanently?

Accepted Answer

We don't save your code, it's only cached in your browser.

Question 9

Can I import/export local files?

Accepted Answer

Yes. Click toolbar "📂 Open" to upload .cpp/.h files, use "💾 Save as ZIP" to export.

Question 10

Which browsers are supported?

Accepted Answer

Chrome ≥ 95, Edge ≥ 95, Firefox ≥ 90, Safari ≥ 15. Mobile users should use landscape mode.

Question 11

What if compilation keeps spinning?

Accepted Answer

Could be peak queue time or infinite loop in code. Queue number shows at bottom; click "Terminate" after 20 seconds to retry.

Question 12

Found a bug or have feature requests?

Accepted Answer

Please use the "🐞 Feedback" button in top-right corner, or email support@mail.adacpp.com. We usually respond within 24 hours.

Question 13

How can parents monitor learning progress?

Accepted Answer

Currently you can check usage in personal subscription quota page.
Future versions will add parent mode with weekly email reports including compilation count, success rate, and AI question records to help supervise, not replace learning.

Question 14

Can't find what you're looking for?

Accepted Answer

Please contact our support team at support@mail.adacpp.com

Frequently Asked Questions

Pricing FAQ

Usage Questions

Frequently Asked Questions

Pricing FAQ

Usage Questions