3

If IconCast is the name of a close-sourced app I'm publishing that makes money, and AppIconSetGen, an open source library under the MIT license made by someone else that I made some changes to (which is also open source and under the MIT license), would the copyright notice that could be shown by pressing the "About IconCast" button under the "IconCast" menu when the app is focused be valid?

IconCast (C) 2023 Charles Yiu
AppIconSetGen (C) 2023 Charles Yiu & Attila Bencze

Do I have to say how AppIconSetGen is under the MIT license? Do I have to include a copy of the MIT license? How would I do it?

Thank you for clearing things up for me.

2
  • 1
    Which bit of "this permission notice shall be included in all copies or substantial portions of the Software" is not clear to you? Nov 12, 2023 at 20:31
  • I wanted to double check if I got it right; it doesn't hurt to ask a bit! Nov 14, 2023 at 7:37

1 Answer 1

4

[...], would the copyright notice that could be shown by pressing the "About IconCast" button under the "IconCast" menu when the app is focused be valid?

Yes, the About screen is a valid and customary place to also show the copyright information of (open-source) third-party components.

Do I have to say how AppIconSetGen is under the MIT license? Do I have to include a copy of the MIT license? How would I do it?

You have to include a copy of the MIT license. You don't have to re-distribute AppIconSetGen under the MIT license, but you still need to include a copy of it in your documentation.

To make it clear that the MIT license is only relevant with regards to AppIconSetGen and not IronCast as a whole, you can structure your About dialog like this:

IconCast (C) 2023 Charles Yiu, licensed under <proprietary license>

Ironcast makes use of the following third-party software that has its own license
- AppIconSetGen (C) 2023 Charles Yiu & Attila Bencze, received under the MIT license

License texts:
<Proprietary license>:
<text of the license>

MIT license:
<text of the license>
4
  • 2
    The OP doesn't need to distribute his copy of AppIconGenSet under MIT; the whole codebase may be under a proprietary licence, as long as the text of the MIT licence is distributed along with it. But broadly, yes, +1 from me.
    – MadHatter
    Nov 13, 2023 at 8:57
  • Can I put "All rights reserved" after "IconCast Copyright 2023 Charles Yiu"? Nov 14, 2023 at 12:18
  • @CharlesYiu, yes you can add that Nov 14, 2023 at 18:25
  • Thank you so much! Your help is appreciated. Nov 18, 2023 at 8:41

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.