Mercuri WhatsApp SMS Marketing vs Relay: Slack Notificationsfor Shopify (2026)
Mercuri WhatsApp SMS Marketing and Relay: Slack Notifications both fall under the 'Staff notifications' category on Shopify, but address entirely different communication needs. Mercuri focuses on customer engagement and marketing through WhatsApp and SMS, aiming to drive sales and improve customer relationships. Relay, on the other hand, is designed for internal team communication, using Slack notifications to keep staff informed about store events in real-time. Mercuri seems positioned towards customer-facing communication, while Relay is purely for internal operational efficiency. Choosing between them depends entirely on whether the goal is to engage with customers or streamline internal workflows.
At a Glance
Mercuri WhatsApp SMS Marketing
5 reviews
Relay: Slack Notifications
3 reviews
Detailed Overview
Relay: Slack Notifications
Instant Slack notifications to keep you informed. See orders come through in real-time!
Key Features
- Send to multiple channels so every department can stay informed
- Setup simple or complex conditions for each notification
- Customize your notification content so you only receive the information you need
- Powerful Slack lookup commands, so you never have to leave your Slack workspace
- Unlimited support, in case you need any help or have suggestions
Feature Comparison
| Rating | 5/5 | 4.7/5 |
Rating Mercuri WhatsApp SMS Marketing5/5 Relay: Slack Notifications4.7/5 | ||
| Reviews | 5 | 3 |
Reviews Mercuri WhatsApp SMS Marketing5 Relay: Slack Notifications3 | ||
| Primary Communication Channel | WhatsApp & SMS | Slack |
Primary Communication Channel Mercuri WhatsApp SMS MarketingWhatsApp & SMS Relay: Slack NotificationsSlack | ||
| Target Audience | Merchants wanting to engage customers | Merchants wanting internal team alerts |
Target Audience Mercuri WhatsApp SMS MarketingMerchants wanting to engage customers Relay: Slack NotificationsMerchants wanting internal team alerts | ||
| Key Benefit | Customer marketing & communication | Real-time staff notifications and customisable alerts |
Key Benefit Mercuri WhatsApp SMS MarketingCustomer marketing & communication Relay: Slack NotificationsReal-time staff notifications and customisable alerts | ||
| Customization | Likely limited by WhatsApp/SMS functionality | Highly customizable notification content and conditions |
Customization Mercuri WhatsApp SMS MarketingLikely limited by WhatsApp/SMS functionality Relay: Slack NotificationsHighly customizable notification content and conditions | ||
| Focus | External - Customer interaction | Internal - Team communication |
Focus Mercuri WhatsApp SMS MarketingExternal - Customer interaction Relay: Slack NotificationsInternal - Team communication | ||
- Conversion Audit
- Speed Audit
- SEO Audit
Conversion Audit
Our Verdict
Mercuri WhatsApp SMS Marketing is for merchants actively seeking to leverage WhatsApp and SMS channels for marketing and direct customer communication. The app's value lies in its ability to connect with customers directly. In contrast, Relay: Slack Notifications is suited for merchants who prioritize internal operational efficiency and want their teams to be immediately aware of store events like orders, fulfillments, and refunds. If your priority is improving internal team awareness and responsiveness, Relay is the clear choice. If your priority is direct customer communication, Mercuri is preferable.
Common Questions
Can both apps be used together?
Yes, as they serve different purposes. Relay for internal staff and Mercuri for customer engagement.
Does Mercuri offer internal notifications?
Based on the description, Mercuri focuses solely on external customer communication, not internal team notifications.
Does Relay allow sending notifications to customers?
No, Relay specifically sends notifications to Slack, an internal team communication platform.
Which app is easier to set up?
Without more information, it's impossible to say definitively. Relay claims to be simple but powerful. User reviews will provide more insight
Which app provides better value?
It depends on your needs. If you need customer engagement, Mercuri provides value. For internal team alerts and operational efficiency, Relay offers value.
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