Reply faster.
Close more conversations.
Zinro is the AI reply assistant for Android that integrates seamlessly across your favorite messaging and communication panes — generating smart replies you can auto-fill in one tap. Never miss a follow-up again.
Integrates seamlessly across your favorite messaging and communication panes.
2,100+ freelancers & businesses save hours weekly
Hey! Do you guys handle Instagram DMs too, not just WhatsApp?
Trusted by teams handling 50k+ chats daily
Customer chats are quietly draining your time and money
If you handle conversations daily, you already know the friction. Here's what it's really costing you.
Replying is slow
You type the same answers 20 times a day. Every minute spent on manual replies is a minute not spent on work that earns.
Repetitive messages
"What are your rates?" "When can you start?" The same questions, again and again — draining your energy and focus.
Missed follow-ups
You forget to circle back on a lead. By the time you remember, the client went elsewhere. Lost chats equal lost money.
The good news? There's a faster way to handle every conversation. Meet Zinro ↓
Meet Zinro — your AI overlay assistant
A lightweight AI that lives on top of your chats and writes the reply for you. One tap to fill, one tap to send.
An AI overlay, not another inbox
Zinro floats on top of WhatsApp, Instagram, Telegram or any chat app you already use. No new app to switch to — just tap and reply.
Instant smart replies, in context
Zinro analyzes the active conversation context and generates 3 contextual reply options in under a second. Pick one, it fills the input box.
Your tone, every time
Set your style once — friendly, formal, or concise. Zinro adapts so every reply sounds like you wrote it yourself.
You stay in control
Zinro never auto-sends. It only auto-fills the message. You review and press send — full control, zero awkward mistakes.
Hey! Do you guys handle Instagram DMs too, not just WhatsApp?
See it in action
One real conversation, start to finish — suggestions, tap-to-fill, auto-complete, and the ai: command, all in the same spot above your keyboard.
Hey! Any update on my order #1234? It's been 5 days 😕
1. Suggestions appear instantly
Tap the chat input — the keyboard opens and a suggestion card appears in the same instant, right above your keyboard. No waiting, no separate button to tap.
👆 Tap input → keyboard + suggestion appear together
2. Tap to auto-fill, you hit send
Tap the suggestion and it drops straight into the input box. It never sends for you — you review it and press send yourself.
👆 Tap suggestion → fills input → you tap send
3. Auto-complete while you type
Start typing your own reply and the native predictive strip above the keyboard fills in, the same as it always does — just smarter.
⌨️ Start typing → predictions appear in the same spot
4. ai: command for anything custom
Type "ai:" followed by an instruction and a full custom reply gets generated using the conversation as context — right there above the keyboard.
✏️ Type "ai: ..." → generates in the same overlay slot
⚡ All in one conversation. No edge tab needed. No app switching. It just works — automatically, right above your keyboard.
Everything you need to reply at the speed of thought
Zinro is an Android overlay assistant that integrates seamlessly across your favorite messaging and communication platforms.
AI Smart Reply Suggestions
Zinro dynamically references your active workspace text to construct tailored communication templates tuned to your tone and business context. No more staring at a blinking cursor — just pick, fill, send. Powered by Groq (LLaMA 3.3 70B) with fallback to OpenAI, Anthropic, or Gemini.
Overlay on Any Chat App
Zinro floats on top of your favorite messaging and communication platforms. No importing contacts, no switching apps, no new inbox. It uses the platform's system-level input automation to detect active text fields and populate replies seamlessly.
One-Tap Auto Fill
Tap a suggestion and it lands straight in the chat input box using the system's native text insertion framework. No manual copying, no app-switching. Review, tweak, and hit send — under 5 seconds.
Saves: Notes, Tasks & Reminders
Save anything from conversations as notes, tasks, or reminders. Reminders sync with Android's AlarmManager for exact-time alarms. Each save can optionally trigger a WhatsApp message via wa.me link. All data is synced to the server.
AI: Command Mode
Type 'ai:' followed by any instruction in the chat input. Zinro generates a full custom message using AI + on-screen conversation context. Runs after a short pause while you type. Great for drafting emails, follow-ups, or complex replies.
Smart Reminders & Follow-ups
Flag a chat for follow-up with date/time. Zinro rings an alarm at the exact time, shows a notification, and reopens the exact conversation. Optionally send pre-written WhatsApp messages. Never drop a lead again.
Auto-Complete Floating Bar
As you type, a floating pill bar appears above your keyboard with auto-completion suggestions. Non-intrusive — tap to accept or keep typing. The bar position is customizable (default 88dp above keyboard, draggable via grip handle).
Customizable Edge Tab
The right-edge tab opens Zinro's side panel. Choose from 3 designs (Solid, Wide, Outline), pick fill & border colors from presets, and adjust width (3-72dp) & height (32-160dp). Your entry point to the overlay.
5 UI Design Styles
Choose from Bento Grid, Glassmorphism, Flat Neo, Brutalism, or Skeuomorphic. The overlay, side panel, and suggestion cards adapt to your chosen style instantly. Select from Settings.
Team Sharing
Team owners can invite up to 10 members by email. Members share the owner's AI call credits, subscription benefits, and business context for consistent AI replies. Each member keeps their own saves, notes, and settings.
Privacy & Control
Zinro never auto-sends messages — it only auto-fills the input. You review and press send. On-device inference where possible. Data never leaves your phone without encryption. Context is referenced locally via system-level input automation.
From slow typing to one-tap replies in 4 steps
No new app to learn. No workflows to rebuild. Zinro slots right into how you already chat.
Enable the overlay
Install Zinro and grant the overlay permission. One-time setup, takes 30 seconds. The Zinro edge tab now floats on every chat app.
Open any chat
Open any conversation on your messaging platform. Zinro dynamically references the active text context to generate suggestions — nothing leaves your phone.
Tap the edge tab
Tap the floating edge tab on the right side of the screen. Within a second, Zinro surfaces 3 smart reply suggestions tailored to the conversation and your tone.
Choose → reply auto-filled
Tap a suggestion and it lands straight in the chat input box. Review it, tweak if you like, and hit send. Done in under 5 seconds.
Built for people who live in their chat apps
Whether you're closing clients or supporting customers, Zinro turns chat overload into a competitive advantage.
Reply to clients in seconds
Stop losing evenings to client chats. Zinro drafts scope, availability, and pricing replies instantly — so you keep moving on billable work.
Handle customer chats at scale
Order updates, refund questions, "are you open?" — Zinro auto-fills consistent answers across WhatsApp Business and Instagram DMs.
Never drop a follow-up
Set reminders on hot leads. Zinro nudges you at the right moment and reopens the exact chat so you can close while it's warm.
Turn DMs into deals
Speed wins deals. Reply to leads before competitors do, with smart, contextual messages that move conversations forward.
Simple pricing that pays for itself
Start free with 200 AI suggestions per month. Upgrade to Pro for ₹300/month and get 2,500 AI calls, or buy never-expire credit packs.
Free
For trying Zinro and light daily use.
No credit card required
Start free- 200 AI suggestions / month for smart replies
- Works on WhatsApp, Instagram & Telegram
- Overlay assistant with edge tab
- 1-tone profile (friendly, formal, or casual)
- Saves & memories (notes, tasks, reminders)
- Basic reminders with alarm scheduling
Pro
2,500 AI calls per month for freelancers & businesses.
Billed monthly · Auto-refills on billing date
Get Pro- 2,500 AI calls / month (suggest + predict + sage + grammar)
- All chat apps supported
- One-tap auto-fill into chat input
- Custom tones & templates
- Smart reminders with WhatsApp integration
- Bonus +100 extra calls per ₹100 credit top-up
- Priority AI (fastest model)
- Usage analytics & team sharing
- Cancel anytime — use till billing period ends
Credit Packs — never expire
One-time purchase of AI call credits that never expire. Used before your monthly limit. Great for busy weeks or when you need extra replies.
₹0.2/call
₹0.2/call
₹0.2/call · Best value
₹0.2/call · Best value
₹0.2/call · Best value
Pro bonus: Each ₹100 credit gives +100 extra calls when you have an active subscription (e.g. ₹100 → 600 calls instead of 500).
👥 Team plan — team owners can invite up to 10 members by email. Members share the owner's credits and business context. Learn more about team sharing
Start replying faster today
Save hours every week. Never miss a follow-up. Turn every conversation into a closed deal — with Zinro's AI overlay on your side.
Free plan available · No credit card required · Cancel anytime
Questions, answered
Everything you need to know before you start replying faster with Zinro.
Still curious? Reach out to our team →