Streamline your macOS workflow by integrating over 350 AI models directly into any application for instant proofreading, email drafting, and document analysis.
AI Keyboard・ReplyAssistant
Elevate your mobile writing with AI-powered grammar checks, instant translations, and smart replies across any iOS app via a seamless keyboard extension.
About AI Keyboard・ReplyAssistant
ReplyAssistant is a comprehensive AI-integrated keyboard extension for iOS devices, specifically engineered to enhance and streamline digital communication for mobile users. By leveraging the ChatGPT API, the application embeds advanced large language model capabilities directly into the system-wide keyboard, making it accessible across every app installed on an iPhone or iPad. This integration allows for a fluid writing experience where users can access sophisticated linguistic tools—such as grammar correction, translation, and text generation—without the need to leave their current messaging, email, or social media application. The primary purpose of ReplyAssistant is to serve as a persistent writing companion that ensures clarity, professional tone, and grammatical accuracy in real-time, effectively reducing the friction associated with mobile typing. The core functionality of the tool is divided between the keyboard extension and a dedicated standalone application. Within the keyboard interface, users can utilize the Grammar Check to scrub messages for errors before sending, or use the Translate feature to engage in multilingual conversations instantly. The Paraphrase and Synonym tools allow for quick stylistic adjustments, while the Continue feature provides AI-driven suggestions to finish incomplete thoughts based on existing context. For more intensive tasks, the main application offers a Write module where users can specify the desired length and tone for custom-generated content. Additionally, the ChatPDF function introduces a unique document interaction layer, allowing users to upload PDF files and query them for specific information or summaries using natural language. This tool is ideally suited for a wide variety of users, particularly those who rely heavily on mobile devices for professional correspondence. Remote professionals, account managers, and customer success representatives can use the Reply feature to draft thoughtful, contextually relevant responses to client inquiries while on the move. For non-native English speakers, the real-time translation and grammar verification tools provide a safety net for confident communication in diverse linguistic environments. Students also benefit from the ChatPDF functionality, which simplifies the process of reviewing and extracting data from long academic documents. Furthermore, the ability to create and save Custom Prompts directly within the keyboard makes it a powerful asset for anyone who frequently sends repetitive messages, such as sales outreach or standard status updates. What distinguishes ReplyAssistant from competing AI writing tools is its rigorous approach to user privacy and its extensive cross-platform compatibility within the Apple ecosystem. Unlike many AI services that harvest user data to train their models, the developer of ReplyAssistant explicitly states that no data is collected from the app, providing peace of mind for users handling sensitive information. The application is also optimized for a broad range of hardware, extending beyond the iPhone to include iPad, Mac computers with Apple Silicon, and even the Apple Vision Pro. This versatility, combined with the ability to trigger personalized AI prompts directly from the keyboard, positions ReplyAssistant as a highly adaptable and privacy-conscious solution for modern digital writing needs.
Pros & cons
Pros
- Adheres to a 'Data Not Collected' privacy policy for enhanced user security.
- Integrates directly into the iOS system keyboard for universal app compatibility.
- Offers a low-cost monthly entry point for premium AI features at $1.99.
- Includes specialized tools like ChatPDF for advanced document analysis on mobile.
- Supports multiple world languages including Japanese and Simplified Chinese.
Cons
- Advanced features such as custom prompts and ChatPDF require a Pro subscription.
- Desktop functionality is limited to Mac computers with Apple Silicon chips.
- Requires an active internet connection to process requests via the ChatGPT API.
- The keyboard extension may require full access permissions to function across all apps.
Use cases
- Multilingual professionals can translate their outgoing messages in real-time within chat apps to communicate with global clients.
- Student researchers can upload academic PDFs to the ChatPDF module to quickly summarize findings or locate specific data points.
- Customer success representatives can use the custom prompt feature to save and deploy AI-refined responses for common support inquiries.
- Freelance writers can use the 'Paraphrase' and 'Synonym' tools to improve the vocabulary and variety of their social media copy.
- Non-native English speakers can rely on the real-time grammar check to ensure their professional emails are error-free before sending.
Features
- custom prompt library
- grammar and spell check
- chatpdf document interaction
- context-aware reply suggestions
- ai email and message generation
- ai-powered text continuation
- paraphrasing and tone adjustment
- real-time instant translation
Pricing
Monthly Pro Subscription
$1.99 / month
- Unlimited AI content generation
- Full ChatPDF document access
- Advanced custom prompt creation
- Unlimited instant translations
- Ad-free experience
Yearly Pro Subscription
$19.99 / year
- All Monthly Pro features included
- Cost-effective annual pricing
- Priority access to new AI models
- Enhanced paraphrasing tools
- Cross-device synchronization
Free
Free
- Basic keyboard extension access
- Standard grammar and spell check
- Limited daily AI interactions
- Access to synonym finder
FAQs
Does ReplyAssistant work within apps like WhatsApp, Slack, or Gmail?
Yes, as a keyboard extension, ReplyAssistant is compatible with any application on your iPhone or iPad that uses a standard keyboard. You can access all AI features directly within your favorite messaging and email apps.
How does the ChatPDF feature work within the app?
Users can upload PDF files into the ReplyAssistant application and then interact with the document through a chat interface. You can ask the AI to summarize the content, extract specific data points, or answer questions based on the text.
What kind of data does the developer collect from my typing?
According to the developer's privacy policy, no data is collected from this app. This ensures that your private conversations and the documents you upload for analysis remain entirely private.
Which languages are supported for translation and grammar checking?
The app supports English along with six other major languages. These include French, Italian, Japanese, Simplified Chinese, Spanish, and Traditional Chinese.
Can I use ReplyAssistant on a desktop computer?
The app is compatible with Mac computers, provided they are equipped with an Apple M1 chip or later and are running macOS 12.5 or higher. It is also available for iPad and Apple Vision Pro.
Ratings & reviews
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