: If you have already purchased a license but lost your key, you can recover it by entering your registered email address on the Prepros Lost Key page [2].
| Tool | Cost | Learning Curve | | :--- | :--- | :--- | | (with Live Sass Compiler) | Free | Moderate (requires extensions) | | Koala (Koala-app.com) | Free | Low (similar to Prepros) | | CodeKit (Mac only) | $29 | Low | | Command Line (Gulp/Webpack) | Free | High (requires Node.js) | Prepros License Key
While Prepros does not have a public "discount code" culture, they occasionally offer free licenses to: : If you have already purchased a license
: Discounted upgrades are typically available for users moving from older major versions. 2. Usage and Activation Rules Usage and Activation Rules