Remembers you — and your lists
Sonic keeps a personal memory: your name, preferences and the people you mention, plus your to-dos, lists and notes. Ask “what's on my list?” days later and it knows — every chat builds on the last.
AI assistant for WhatsApp
Delegate your day in a single chat.
Sonic is a personal AI assistant on WhatsApp. Type or send a voice note to remember things, read your documents, run your group reminders and handle the busywork — while you get on with the work that matters.
Powered by advanced AI · Chat by text or voice · On WhatsApp, in private chats and your favorite groups · App coming soon
Sonic
online
Text or voice (Pro & Max)
🎙️ Voice message · 0:06
Got your voice note — meds reminder set for 22:00 every night. 💊 Want me to reply in voice too?
Yes, in a calm voice please
You got it — I'll send my answers as voice messages in a calm tone. 🎧
🎙️ Voice message · 0:03
🔊 Voice reply sent — tomorrow you've got the dentist at 10:00 and a call with Dana at 15:00.
One assistant. The whole back office.
Sonic replaces the scattered apps, reminders and follow-ups you juggle every day with one thing you already have open.
Everything you can hand off
Real, working features — all inside a normal chat on WhatsApp.
Chat by text or voice — your call
Type, or send a voice note in any language, and Sonic acts on it just like text. Prefer to listen? It can reply with voice messages too, in the tone you like. Voice is on Pro and Max.
Reminders that actually fire
One-time or recurring, in plain words — “every Monday at 9”, “in 20 minutes”. Time zones and daylight saving handled for you.
Your AI assistant in groups
Mention Sonic in any group for “what did I miss?”, polls, shared lists, splitting the bill and scheduled group reminders.
Document analysis
Send a PDF, contract, invoice or spreadsheet and ask — summaries, totals, key clauses, the number you actually need.
Browse & search the web
Live prices, availability, news or a detail on a site — Sonic searches live and brings back the answer. On Max it opens real pages too.
Google & Notion
Check and update your Calendar, Sheets and Docs, and search, answer and send your email (Gmail or Outlook) from chat — it asks before changing or sending anything. On Pro and Max, Sonic also reads and edits your Notion docs — or only reads them, if you prefer.
On your smartwatch
Works on Apple Watch, Wear OS and Galaxy Watch through WhatsApp — no watch app. Dictate, read answers and get reminders on your wrist.
Getting started
Up and running in under a minute
Nothing to install, no dashboard to learn. If you can send a message on WhatsApp, you can run Sonic.
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Save Sonic's number
Save Sonic's number on WhatsApp and start a normal chat — exactly like messaging a person.
Get access now - 2
Just ask
Type what you need in plain language. Sonic figures out whether it's a reminder, a task, a question or a file to read.
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Let it work
Sonic handles it in the background — firing reminders, reading documents, browsing the web — and messages you the moment something's ready.
Built for people who'd rather delegate
Whether you run a business or just run a busy life, Sonic takes the admin off your plate.
A back office that never sleeps
Get reminded to chase clients for documents and payments, keep your team's group on schedule, summarize contracts and invoices, log expenses to a Google Sheet, book meetings in your calendar, and never miss a reminder — without hiring an assistant.
Your life, on autopilot
Recurring reminders for the things you forget, quick answers from the web, your Google Calendar a message away, your documents summarized, and your to-dos in the one app you never close.
Keep the group moving
Automatic standup nudges, a daily AI recap of the chat, quick polls, shared to-do lists and deadline reminders, plus answers straight from your team's Notion (Pro & Max), which Sonic can also update for you from your private chat — so coordination stops living in someone's head.
Hooks into your stack
Browse and scrape the pages you need, connect Google, Gmail, Outlook and Notion, and hand Sonic a URL instead of a dashboard — so it fits the tools you already use.
Everything you might ask
Do I need to install anything?+
No. Sonic works inside WhatsApp, the app you already have. Save its number and message it like any contact — there's no separate login or dashboard. A dedicated Sonic app is coming soon.
Is there a Sonic app?+
A dedicated Sonic app is coming soon, and it will share your account with WhatsApp: same memory, connections, subscription and reminders. Until then, Sonic works on WhatsApp — groups included.
What powers Sonic?+
We've wired together a range of advanced AI models and tools — language understanding, web browsing and document analysis — into one super-capable assistant that picks the right tool for every task.
Is my data private?+
Sonic only sees the messages and files you send it, and it asks for confirmation before taking any action on your behalf. You stay in control of what it can touch.
What kinds of reminders can it set?+
One-time ("in 20 minutes", "tomorrow at 9") and recurring ("every Monday", "daily at 8am"), with timezone and daylight-saving handled. It can also post recurring reminders into a WhatsApp group.
Can Sonic join my WhatsApp groups?+
Yes — Sonic works in your favorite groups: just add it to any group you're already in. Mention it and it answers right in the group — catch-up recaps ("what did I miss?"), decisions and action items, translations, polls, shared lists and RSVPs, and splitting expenses (it keeps track of who owes whom). It can also post one-time or recurring group reminders, including a daily or weekly AI recap of the chat. Members get live web search on every paid plan; they can reply to a photo or document and have Sonic read it (it counts toward the subscriber's daily reads: 1 on Basic, 20 on Pro, 50 on Max), and on Pro and Max a voice note too (on Max, a link). On Pro and Max, a member can also link their Notion as a read-only knowledge base (mention Sonic with "/notion on"), so it answers from your team's live docs. One subscription unlocks the group for everyone in it — there's no limit on group size, and every member can mention Sonic without a plan of their own. Your groups get their own daily allowance on top of your personal one, shared across all the groups your plan unlocks: 75 Sonic replies a day on Basic, 150 on Pro and 300 on Max — the plan to pick for big or busy groups. The free trial doesn't include WhatsApp groups.
Can group members message Sonic privately — and does that count against my plan?+
In the group, Sonic only speaks when someone @mentions it or replies to one of its messages — it never reads along or chimes in on its own. Any member can also message Sonic's number privately, and that private chat is entirely their own: it starts on their own free trial and, if they subscribe, runs on their own plan and daily limit. It never draws on your subscription. Your personal daily limit only counts messages in your own private chat with Sonic, and the group's allowance only counts Sonic's replies inside that group — so the two never mix, and nobody is ever charged extra.
How do I get started?+
Get access below by leaving your name, email and WhatsApp number. Sonic messages you on WhatsApp, usually within a minute, and the free trial includes 15 messages within 7 days, with no card needed.
How do I subscribe — and how do I cancel?+
You can subscribe right here on the website: open the Manage subscription page, verify your phone number with a one-time code (or use the sign-in link Sonic gives you in the chat), and pick a plan — payment is handled securely by PayPal. Or, if you prefer, just send /subscribe to Sonic in the chat. Cancelling works the same way: use the Manage subscription page or send /unsubscribe, anytime.
Can I send and receive voice messages?+
Yes — voice messages are part of the Pro and Max plans. Send Sonic a voice note instead of typing and it understands and acts on it just like a text message — in any language you speak. You can also ask Sonic to reply with voice messages, in the tone and style you prefer, so you can listen instead of read, completely hands-free.
Can I use Sonic as an AI assistant on my smartwatch?+
Yes — Sonic works as an AI assistant on any smartwatch, including Apple Watch, Wear OS and Galaxy Watch. Because it runs inside WhatsApp, there is no watch app to install: Sonic's answers and reminders arrive as notifications on your wrist, and you can dictate a question by voice straight from the watch and read the reply there. Same AI assistant on your phone and on your smartwatch.
Hand the busywork to Sonic.
Get access and put your reminders, follow-ups and admin on autopilot — right inside WhatsApp.
Get accessAlready chatting with Sonic? Manage your subscription here