ReplyAssistant
ReplyAssistant checks grammar, translates text, and helps you write better emails or messages, but it may struggle with extremely long documents.
At a glance
Starts at
Free
No paid plan found on the App Store, September 2026.
Free tier
No
Platforms
iOS, iPadOS
Best for
Writers, translators
Not for
Long document writers
3.8 out of 5
Scored by a Toolio reviewer after real useOur verdict
ReplyAssistant is a handy writing assistant for quick corrections and translations. However, it might not be ideal for extensive document editing due to its limitations on handling large files.
✓What it does well
Grammar CheckIdentifies and corrects grammatical errors before sending messages or emails.
TranslationInstantly translates text in multiple languages without leaving the chat.
Custom PromptsCreates personalized prompts for quick use when needed.
✕Where it falls short
Limited Language SupportSupports only a limited number of languages, excluding some less common ones.
Long Document HandlingStruggles with very long documents due to its file size limitations.
Extra In-app PurchasesRequires in-app purchases for some features like advanced models and translations beyond free limits.
Key features
Write AssistAllows you to ask AI to generate content based on your needs.
Reply with PromptAdds a prompt for the AI when replying, guiding its response.
ChatPDFAllows you to upload PDFs and ask questions about their content directly from the app.
advanced model supportSupports advanced gpt-4o model for better content generation.