iParaphrase is a free automatic paraphrasing app available for Android devices developed by Noon.Ai. It uses advanced machine learning algorithms to re-write your text without unnecessarily altering the meaning. Unlike other paraphrasing tools, it produces a new, coherent text that maintains grammaticality, coherence, and readability. It is ideal for rendering and simplifying articles, essays, and research papers. The app is also useful for researchers and language learners who want to avoid plagiarism in their writings.

The app is limited to 500 character-long text, which is a downside if you need to paraphrase longer texts. However, the app is ad-supported, which means that you can use it without paying any fees.