Products Sync Master app allows to concatenate fields from import file or add some text to field.

For example if you want to add to your product name also category name, you can create custom field that will contain this data.

For example if in your file product title has field name Product name and your collection has name Main Category to create field that will contain this data you need to create Custom Field with Formula type - String and formula: [Product name] [Main Category]

After saving select your custom field in for product title import: