CTFlearn is free and will always remain free to use.
However, building and running CTFlearn takes up a large amount of time. If you like CTFlearn, have found it useful, and are able to do so, please support CTFlearn! PayPal
CTFlearn++ will offer the following benefits:
- No advertisements
- Since you are not logged in, no supporter badge will be displayed next to you username.
- Any future benefits to CTFlearn supporters
Contributions go towards:
- Time spent developing new features
- Time spent maintaining CTFlearn
- Infrastructure (hosting, bandwidth, etc)
- Time spent creating new challenges and events
You can support CTFlearn via PayPal
Amounts under $3 barely reach CTFlearn after fees and therefore will not confer a badge.