Voice calls, in the browser
Take and place real WhatsApp calls from the inbox — no phone, no app. Ring routing, mute, live quality and per-minute cost on every call.
A shared inbox, broadcasts, click-to-chat links, automation and voice calls — on the official WhatsApp Business API, wired straight into your CRM.
Official API · No code · Cancel anytime
Zhat Convex Store
business account
Powering conversations for teams in
Not because sending a message is hard — because everything around the message is. Windows expire, tokens die, agents collide, and campaigns can't be measured. We built for that reality first.
The 24-hour window closes
Most tools go silent. Meta only allows an approved template after that — so re-engagement has to be built in, not bolted on.
Two agents open the same chat
Replies collide and customers get answered twice. Ownership, assignment and audit trails have to exist before volume, not after.
An access token expires
Sends fail silently and nobody notices for a day. Failures should be visible, recoverable, and retried automatically.
A campaign goes out
Nobody can say which poster, page or QR actually produced the conversation. If it isn’t attributed, it isn’t a channel — it’s a guess.
Delivered 9,102 · Read 6,540
Send a product image, a video, a PDF or your full catalog to thousands of opted-in customers — each as a personal 1:1 WhatsApp message. Schedule it, personalize it, and watch deliveries and reads roll in live.
Do you ship the full catalog to Lahore?
Got the product video — looks great, thank you!
Assigned to SaraCan we reorder the same bundle as last month?
Replies land in a shared team inbox. Assign chats, tag conversations, fire off saved replies, and never lose a customer message again.
Chat channels, your CRM, your store and your spreadsheets — installed like plugins, configured in minutes, all feeding the same inbox.
Take and place real WhatsApp calls from the inbox — no phone, no app. Ring routing, mute, live quality and per-minute cost on every call.
Message hundreds of customers at once. Each one receives a private 1:1 chat, and their replies come back into a single thread.
Links and QR codes that open WhatsApp pre-filled. Every tap, scan and resulting conversation is counted — so you know what actually works.
Welcome messages, off-hours replies and guided question flows — with instant hand-off to a human the moment one is needed.
Assign, tag and resolve conversations. Granular permissions, internal notes, and a record of exactly who replied.
Chats become leads and deals automatically, and stay in step both ways — so sales never has to copy a conversation by hand.
How it works
Link your business number to the official WhatsApp Business API and get green-tick verification — guided, no code.
Build a message with images, video, a catalog or a PDF, add buttons, and pick your audience.
Broadcast at scale, then watch delivered/read receipts and replies in real time.
Proof at scale
Customer conversations are among the most sensitive data a business holds. We treat them that way.
Built on Meta’s Cloud API — never an unofficial bridge or a phone farm. Your number stays yours and can’t be banned for using us.
Access tokens are sealed with AES-256-GCM before they touch the database. Nothing sensitive is ever sent to the browser.
Inbound events are HMAC signature-checked against Meta’s app secret and rejected if they don’t match. Spoofed traffic never reaches your inbox.
Granular permissions per role, and an append-only record of who sent, edited, deleted or called — so you can answer “who did that?”.
Every query is scoped to your account at the database layer. One tenant can never read another’s conversations, numbers or media.
Export it, or delete it and we delete it. No resale, no model training on your customer conversations. Ever.
Loved by teams
Every plan includes the shared inbox, automation, templates and CRM sync. Meta's own conversation fees are billed by Meta — we don't mark them up.
For a small team getting going.
$49/mo
For growing teams that need more volume.
$99/mo
High-volume messaging for established operations.
$199/mo
High volume, custom terms.
Custom
Cancel anytime · No contract · Your data stays yours
We never work around Meta’s rules — no grey-market gateways, no scraped numbers. The boring path is the one that survives.
A dead token, a blocked send, a missed call: you see it, with the fix one click away. Silent failure is the real outage.
Every link, QR, broadcast and call is attributed and costed. Opinions about what’s working are cheap; numbers aren’t.
No resale. No training on your conversations. Export or delete whenever you like.
Yes. Sending on the official WhatsApp Business Platform requires a Meta Business account, a verified business and a registered phone number. Zhat Convex walks you through Meta Business verification, number registration and message-template approval. Note that the green "Official Business Account" tick is granted at Meta's sole discretion based on how well known your brand is — no provider can promise it.
They are two separate things, and we keep them separate. You pay Zhat Convex a flat platform subscription for the software — Starter $49, Pro $99 or Business $199 per month. Meta's messaging charges are metered on top: WhatsApp bills per delivered message, priced by the recipient's country and the message category. Zhat Convex meters every message against Meta's own billable flag and draws it from a WhatsApp budget you top up, using a published country-by-category rate card. There is no invented "5,000 messages included" allowance — you see what each message actually costs.
It is the 24 hours after a customer's most recent message to you, during which you may reply with free-form messages. Inside that window, service replies are free — Meta does not charge for them, and neither do we. Once it closes you can only re-open the conversation with an approved message template, which is billable. Zhat Convex tracks the window on every conversation, shows agents how long is left, and requires a template automatically once it has expired.
Yes — natively, and in both directions. Zhat Convex creates leads, deals and contacts in Bitrix24 from WhatsApp conversations, syncs lead status back, and mirrors your employees and departments. A field-mapping editor lets you decide exactly which WhatsApp fields land in which Bitrix24 fields, so you are not forced into someone else's schema. Zoho CRM is supported the same way, and the connector layer is pluggable for more CRMs.
The AI Chatbot is an optional add-on that answers customers automatically from a knowledge base you upload. It costs $9.99/month on Starter (3,000 AI chats included), $19.99/month on Pro (8,000 chats) and $34.99/month on Business (15,000 chats). Past the included quota the bot keeps answering and extra chats bill at a flat $6.99 per 1,000 on every plan — usage never cuts off mid-conversation.
Yes. Images, video, audio, documents and location all work, subject to WhatsApp's media type and size limits. Media is the core of the platform, not an add-on.
Yes. WhatsApp requires recipient opt-in before you send them business-initiated messages. Zhat Convex provides opt-in capture through click-to-chat links and QR codes, and honours opt-outs automatically.
A phone number can only be active on one WhatsApp product at a time, so a number currently used in the WhatsApp Business app must be migrated to the Business Platform before it can send through Zhat Convex. Once migrated, you can run multiple numbers in one workspace — one on Starter, three on Pro and ten on Business.
Every workspace is isolated from every other. Credentials are encrypted at rest, inbound webhooks are signature-verified before they are trusted, access is controlled by six distinct roles, and every privileged action is written to an immutable audit log.
Connect your number in minutes. No code, no long contracts.