Compare Mercu vs. Sirius Growth
Seamless integration, better user experience, less time & costs
| Feature | Siriusgrowth | Mercu |
|---|---|---|
| Official WhatsApp + Teamtailor Integration | ✅ Yes – Full workflow automation inside Teamtailor | ⚠️ Partial – Works with Teamtailor but not fully embedded |
| Automatic Candidate Screening & Matching | ✅ Yes – Based on answers directly in Teamtailor | ✅ Yes – But requires additional ATS workflows |
| Manageble from Teamtailor? | ✅ Yes – Works natively with Teamtailor | 🚫 No – Designed to complement or replace ATS |
| Pricing Transparency | 👍 Starts at €99.- | 👎 Starts at €599.- |
| Setup Complexity | 👍 Easy – Direct plugin into Teamtailor | 👎 More complex – May require new ATS adoption |
| Best For | Teamtailor users wanting WhatsApp automation | Teams moving to a new, full ATS platform |
1. Official Teamtailor Partnership
Siriusgrowth stands out as the only official WhatsApp partner for Teamtailor, offering seamless automation of candidate communication directly within Teamtailor, not adding another ATS solution. This official status ensures tighter integration, greater reliability, and better support compared to third-party alternatives like Mercu.
2. Deep Workflow Integration & Automated Screening
Siriusgrowth isn’t just a messaging add-on, it integrates deeply with Teamtailor’s workflow functionality.

Allowing recruiters to:
- Preset screening criteria.
- Automatically match or move candidates through your pipeline based on their answers.
- Avoid the need to juggle multiple ATS tools.
3. Save on Costs, while getting the same features
Budget matters. Siriusgrowth offers significant cost advantages:
- Basic plan: €189/month per AI Agent for one job (unlimited questions, ATS connection, 1,000 convos/mo, custom WhatsApp branding and an dedicated number)
- Advanced tier: for multiple agents you get a discount, only €99/month per agent
Mercu’s pricing is based upon a full-service ATS integration and starts at €599.-, which makes it more attractive if you already use it as an ATS. Meanwhile, Siriusgrowth has a leaner offering purely as a WhatsApp integration with Teamtailor, delivering equivalent functionality at up to 80% lower pricing.
4. Simplicity & Efficiency, No Extra ATS Required
- Siriusgrowth: You simply add Siriusgrowth to your Teamtailor setup, no second ATS, no added complexity.
- Mercu: Requires integration on top of your existing ATS setup, which may mean managing two systems and potentially higher overhead.
In short, if you’re already using Teamtailor, Siriusgrowth is the smarter choice. Delivering full WhatsApp integration, deep workflow automation, and equivalent features at up to 80% lower cost. Mercu offers a robust all-in-one ATS, which can be a solid pick when migrating to a completely new applicant tracking system, but for Teamtailor users, Siriusgrowth delivers unbeatable value, speed, and simplicity
Start with WhatsApp? Check https://siriusgrowth.nl/whatsapp-teamtailor/
