The size of your Thunkable project is generous, but finite. Projects created with free accounts need to be slightly smaller, while PRO subscribers will have a more generous allowance of project storage but in either case you will want to make the most out of every megabyte.
You can find a table of project sizes here:
Depending on when you need an asset, it might make sense to store it in the cloud instead. Using cloud storage in your app will not have any impact on your local project size. Thunkable provides multiple third-party integrations, including Airtable, Cloudinary, and Firebase, as well as our own cloud variables for smaller pieces of data.
Sometimes there's simply no option left other than to go back through your app and make it more efficient. Some tips for refactoring your app include:
Reduce block count by creating functions
Use loops to perform repetitive tasks
Use generics as much as possible