Reply Lab: AI Texting Keyboard
Know what to text back
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Text your crush, reply to friends, or find the right words for work. Paste a message or add a screenshot, pick your tone, and get replies in your keyboard.
Never stare at a text wondering what to say. Reply Lab is the AI keyboard that writes the perfect reply inside any app you type in: iMessage, WhatsApp, Instagram, Snapchat, Tinder, Slack. No switching apps. No pasting your conversation into a chatbot. Everything happens right where you're texting.
HOW IT WORKS
Add Reply Lab as a keyboard, switch to it with the globe icon, and generate AI replies right where you are typing. Everything happens inside the keyboard. Even screenshot analysis runs in place, without ever leaving the conversation.
KEY FEATURES
Works Everywhere. One keyboard for every messaging app. Dating, work, friends, and family.
15+ Reply Tones. Professional, Flirty, Funny, Savage, Sarcastic, Smooth, Dating Coach, and more. Match the vibe of any conversation.
In-Keyboard Screenshot Analysis. Paste a message or a screenshot of a conversation and get context-aware reply suggestions directly from the keyboard.
Custom AI Modes. Write your own instructions 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.
PERFECT FOR
Dating apps. That match finally messaged you back and the pressure is on. Get replies with actual rizz, from smooth openers to comebacks when they leave you on read.
Work messages. Your boss texts at 9pm and "k" is not an option. Draft the professional version in seconds and get back to your evening.
Group chats. Someone roasts you in front of everyone. Reply Lab has the clapback ready before the laughing emojis stop.
Awkward conversations. Rescheduling plans, saying no, texting your ex back (or deciding not to). Get wording that hits the right note when the stakes feel high.
WHY A KEYBOARD AND NOT ANOTHER AI APP
Because the conversation is already on your screen. Switching apps to describe your situation to a chatbot, copying its answer, and pasting it back kills the moment. Reply Lab lives where you type, reads the context you give it, and drops the reply straight into the text field. The fastest path from "what do I even say" to sent.
FREE TO USE
Get free AI replies every day, plus free screenshot analyses to start. Upgrade to Reply Lab Pro for unlimited text replies and up to 50 screenshot analyses per day.
REPLY LAB PRO
Reply Lab Pro is available as an auto-renewable subscription or a one-time purchase:
Weekly: $1.99 per week
Annual: $29.99 per year, best value
Lifetime: $79.99 one time, never renews
Payment is charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current billing period. Your account will be charged for renewal within 24 hours before the end of the current period. You can manage or cancel your subscription anytime in Settings > Apple ID > Subscriptions. The Lifetime option is a single payment and does not auto-renew.
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://replylab.app/privacy
A fresh look and a smoother way to get started.
• Redesigned onboarding with a clearer keyboard setup guide.
• Refined keyboard controls for pasting messages, adding screenshots, and choosing your tone.
• Updated home screen and Pro upgrade experience.
• Improved readability and smoother transitions throughout the app.
The developer, Application Of Technology, LLC, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Purchases
- Identifiers
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- User Content
- Diagnostics
- Other Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Application Of Technology, LLC
- Size
- 19.9 MB
- Category
- Utilities
- Compatibility
Requires iOS 17 or later.
- iPhone
Requires iOS 17 or later. - iPad
Requires iPadOS 17 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Infrequent
Profanity or Crude Humor
Mature or Suggestive Themes
Contains
User-Generated Content
Social Media
- In-App Purchases
Yes
- Reply Lab Pro Yearly $29.99
- Reply Lab Pro $1.99
- Reply Lab Pro $4.99
- Lifetime Pro $79.99
- Copyright
- © 2026 Reply Lab