Reply Lab
AI Keyboard for Smart Replies
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
AI replies right from your keyboard. Browse thousands of community modes or create your own. Works in iMessage, Snapchat, Instagram, and every app.
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
- Expanded community modes library with a 1000+ new reply styles
- Custom modes now support descriptions for easier organization
- Updated App Store screenshots
- General bug fixes and stability improvements
The developer, Joshua Cohen, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- User Content
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Joshua Cohen
- Size
- 4.7 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - iPad
Requires iPadOS 17.6 or later. - Mac
Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Infrequent
Profanity or Crude Humor
Mature or Suggestive Themes
Contains
User-Generated Content
- In-App Purchases
Yes
- Reply Lab Pro $4.99
- Copyright
- © 2026 Reply Lab