ConvoSync vs Sirena: which one does your team need?
Sirena is a sales messaging platform (now part of Zenvia). ConvoSync saves the WhatsApp chats your team already has to your CRM or ATS. Here's how they differ, side by side.
Sirena, bought by Zenvia in 2020 and now sold as Zenvia Conversion, asks salespeople to stop using personal WhatsApp and work from business numbers on its platform, with a shared inbox, lead management, bots and broadcasts. ConvoSync takes the opposite approach: people keep their own WhatsApp, and ConvoSync saves each client chat, with an AI summary, to the matching CRM or ATS record. Choose Sirena to move sales onto company numbers; choose ConvoSync to keep the numbers clients already know and still get the record.
ConvoSync vs Sirena: feature comparison
| Feature | ConvoSync | Sirena |
|---|---|---|
| Type of tool | Capture tool: saves conversations to your CRM or ATS | Sales messaging platform (now part of Zenvia) |
| Main job | Saves the one-to-one WhatsApp chats your people already have to the right CRM or ATS record | Moves sales conversations from salespeople's personal WhatsApp onto a business platform, with a shared inbox, lead management, bots and broadcasts |
| How WhatsApp connects | Chrome extension next to WhatsApp Web on each user's laptop | WhatsApp Business numbers run through Zenvia's platform |
| Which WhatsApp numbers | Each person's own personal or WhatsApp Business app number | Business numbers; its pitch is that salespeople stop using personal WhatsApp |
| Needs the WhatsApp Business API | No | Yes, business numbers on the platform |
| Sends messages, broadcasts or bot replies | No. Capture and archive only | Yes: broadcasts and automated first responses |
| Saves chats from people's own phones to your CRM or ATS | Yes, matched to existing records by phone number | No: salespeople move conversations onto the platform instead |
| CRM and ATS connections | Zoho CRM, Zoho Recruit and Bullhorn ready to use; other CRMs and ATSs through a custom integration | CRM integrations, including Salesforce |
| AI | AI summary plus the full transcript on the record, reviewed by the user before saving, run on your own AI provider account | Bots for first responses |
| Meta per-message fees | None, because nothing is sent | Depends on the Zenvia plan |
| Published pricing | On request | Subscription plans by users and features; see Zenvia |
| Best for | Sales, recruitment, account management and partner teams who work with clients from their own phones | Latin American sales teams ready to move clients onto business numbers |
Last checked from Sirena's own pages: Zenvia: Sirena acquisition · Zenvia Conversion on the App Store. Features and prices change, so check the vendor's site before you decide. Sirena is a trademark of its owner; ConvoSync is not affiliated with it.
When to choose Sirena, and when to choose ConvoSync
Choose Sirena if
- You want to move salespeople off personal WhatsApp altogether
- You sell mainly in Latin America
- You want lead management, bots and broadcasts in one sales app
Choose ConvoSync if
- Clients already know your people's own numbers and you don't want to change that
- You need conversations saved in your existing CRM or ATS
- You use Zoho CRM, Zoho Recruit or Bullhorn
ConvoSync vs Sirena: common questions
What is the difference between ConvoSync and Sirena?
Sirena, bought by Zenvia in 2020 and now sold as Zenvia Conversion, asks salespeople to stop using personal WhatsApp and work from business numbers on its platform, with a shared inbox, lead management, bots and broadcasts. ConvoSync takes the opposite approach: people keep their own WhatsApp, and ConvoSync saves each client chat, with an AI summary, to the matching CRM or ATS record. Choose Sirena to move sales onto company numbers; choose ConvoSync to keep the numbers clients already know and still get the record.
Does Sirena save WhatsApp chats from people's own phones to a CRM?
No. Sirena's approach is to replace personal WhatsApp with business numbers on its platform. ConvoSync keeps people's own WhatsApp and saves the chats to the CRM or ATS.
Is ConvoSync an alternative to Sirena?
Not directly. Sirena sends messages from a company number; ConvoSync records the chats people have on their own numbers. ConvoSync is the better fit when people talk to clients on their own WhatsApp and you want those chats, with an AI summary, on the record in Zoho CRM, Zoho Recruit or Bullhorn.
Can I use ConvoSync and Sirena together?
Usually you'd pick one approach: move sales onto business numbers (Sirena) or keep people's own numbers and capture the chats (ConvoSync).
Does ConvoSync need the WhatsApp Business API?
No. ConvoSync runs as a Chrome extension next to WhatsApp Web and works with personal and WhatsApp Business app numbers. It doesn't send messages, so there are no message templates, Meta approval or per-message fees.
Compare ConvoSync with other WhatsApp tools
See ConvoSync next to Sirena.
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