Signal + RPLY: AI Messaging Assistant for macOS
AI replies, search, and triage for Signal. Privacy-first messaging, supercharged.
How It Works
Signal is the gold standard for private messaging. RPLY brings AI-powered triage and drafting to Signal on your Mac, without compromising the privacy you chose Signal for.
RPLY reads your Signal conversations locally, understands context across chats and group messages, and drafts replies that match your tone. Everything stays on-device.
Key Features
Privacy-first AI
Signal conversations are indexed on-device only. RPLY respects the privacy model you chose. Switch to fully local AI for zero cloud exposure.
Group chat triage
Active group chats move fast. RPLY identifies when you are addressed, tracks topics, and surfaces what needs your response.
Voice-matched drafts
Learns your messaging style from actual history. Drafts are indistinguishable from your own messages.
Cross-platform context
Someone messages you on Signal and emails you? RPLY understands the full relationship across platforms.
Semantic search
Find any Signal message by meaning. "That address someone sent me last month", found instantly.
Disappearing message awareness
RPLY works with Signal's disappearing messages. Indexes what's available, respects what's gone.
Setup Guide
- 1
Download RPLY
macOS 14+ on Apple Silicon.
- 2
Connect Signal
Link your Signal Desktop app. RPLY reads local data only. Nothing leaves your machine.
- 3
Grant permissions
Accessibility for keyboard shortcuts and overlay features.
- 4
Index & go
Conversation history indexed locally. Start triaging.
Use Cases
Privacy-conscious professionals
Lawyers, journalists, activists: anyone who needs encrypted messaging with AI productivity on top.
International teams
Signal is popular globally. RPLY helps you stay responsive across time zones without constant monitoring.
Personal + work overlap
Use Signal for both personal and professional contacts? RPLY triages and adapts tone accordingly.
Source communication
Sensitive conversations that need fast, thoughtful responses. RPLY drafts with context, you approve.
Frequently Asked Questions
No. RPLY reads messages from the local Signal Desktop database after they are decrypted on your machine. It does not intercept or modify the encryption protocol.
RPLY indexes messages that are currently available on your device. Once Signal deletes them, they are removed from the index too.
Never. Every message requires your explicit approval before sending.
Yes. Signal Desktop must be installed and linked to your phone for RPLY to access conversations.