Reply Lab

Reply Lab is the AI keyboard that generates replies inside any app you type in - iMessage, WhatsApp, Instagram, Snapchat, Tinder, Slack, and more. No app-switching. No copy-paste. No screenshotting conversations to upload somewhere else.

Unlike standalone AI apps, Reply Lab works as a keyboard - so it functions inside apps like Snapchat where you can't copy-paste at all.

How It Works
Add Reply Lab as a keyboard, switch to it with the globe icon, and generate AI replies right where you're typing. Everything happens inside the keyboard - even screenshot analysis runs in-place without leaving the conversation.

Key Features

Works Everywhere - One keyboard for every messaging app. Dating, work, friends, family - even apps where copy-paste doesn't work.

15+ Reply Tones - Professional, Flirty, Funny, Savage, Gen Z, Sarcastic, and more. Match the vibe of any conversation.

In-Keyboard Screenshot Analysis - Paste a screenshot of a conversation and get context-aware reply suggestions directly from the keyboard.

Custom AI Modes - Write your own system prompts to build fully personalized reply styles that respond exactly how you want.

Community Marketplace - Publish your custom modes for others to discover, and browse AI personalities created by the community.

Improve Mode - Highlight any draft reply and let AI polish it without losing your voice.

Length Control - Short, Medium, or Long. Replies sized to fit the moment.

Free to Use
Get 8 free AI replies per day. Upgrade to Reply Lab Pro for unlimited replies.

Reply Lab Pro Subscription
Reply Lab Pro is an auto-renewable monthly subscription at $4.99/month. Payment is charged to your Apple ID account at confirmation of purchase. The subscription automatically renews unless canceled at least 24 hours before the end of the current billing period. You can manage or cancel your subscription anytime in Settings > Apple ID > Subscriptions.

Privacy
Reply Lab requires Full Access to communicate with our AI service for reply generation. We do not store your conversations, sell your data, or use your messages for AI training.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://www.freeprivacypolicy.com/live/5d266a3a-5673-4cdf-a0e1-72ab6812e0a7 Show More