剛好在忙，先提 Creative Market 的部分。
Creative Market 授權
免費下載是個人授權。
字型是個人電腦授權，你可以在你設計的實體商品中使用（但不能是單一字母），實體商品可以販賣。
WordPress 主題是 GPL 授權，可商用。
免責聲明：我個人的理解不代表原廠，請以原廠說明為主。
如果有問題，可以到他們客服詢問
https://support.creativemarket.com/hc/en-us/requests/new
免費下載授權
免費下載的授權說明頁在此，裡面有常見問答。
https://support.creativemarket.com/hc/en-us/articles/115006136967
Q: Which License comes with free goods? Can I use the free good to create an End Product to sell?
A: Free goods are licensed as follows:
• Free Fonts come with the Desktop License: The Desktop License allows you to create End Products for sale.
• Free Themes only offer the GPL: the GPL allows commercial use.
• All other free Assets come with the Personal License: Commercial use is not permitted with the Personal License.
Creative Market 的三種授權
https://creativemarket.com/licenses/general
• Personal: The licensed asset can appear in non-commercial project
• Commercial: The licensed asset can appear in up to 5,000 end products for sale
• Extended Commercial: The licensed asset can appear in up to 250,000 end products for sale
字型授權
參考：自從 google font 出來後，我在網站設計時，都是使用 google font。要在 App 中使用的話，則會購買允許內嵌字型到 App 的授權。
字型授權依使用情形分為：個人電腦字型、網站、電子書、App。
Font Licenses: Desktop Font Uses, Webfont Uses, E-Pub Font Uses, App Font Uses
Desktop Font Uses 個人電腦字型授權說明：
https://support.creativemarket.com/hc/en-us/articles/360025743894-Desktop-Font-Uses
Webfont Uses 網站字型授權說明：
https://support.creativemarket.com/hc/en-us/articles/360025749874-Webfont-Uses
E-Pub Font Uses 電子書字型授權說明：
https://support.creativemarket.com/hc/en-us/articles/360025886093-E-Pub-Font-Uses
App Font Uses App字型授權說明：
https://support.creativemarket.com/hc/en-us/articles/360025751294-App-Font-Uses