A free app for Android, by ASKSEO.
With this tool, you can easily generate an unlimited number of plagiarism-free Spanish phrases and sentences to use in any kind of writing or content creation.
You can paraphrase using the major Spanish dialects, which includes - but are not limited to - Basque, Catalan, Galician.
This app features five paraphrasing levels so that you are still in charge of the sentence transformation.
"Low" generates very subtle changes; there is a particular focus on synonyms here so don't expect drastic paraphrasing. The next level is "Medium", then "Creative". "Extreme" generates the highest level of paraphrasing - so expect not only synonym replacements, but also major structural changes, as well as variations in mood and delivery. "Remove plagiarism" is part of the five levels in the list, but is actually just an extra perk - it simply secures your writing by ruling out plagiarism.