You have a Slack channel for sales, another for support, another for accounting. A customer messages support about a problem. Sales saw that same problem three weeks ago. Finance is holding an invoice because no one told them the deal was still negotiating. No one in the chat saw the other context. This is not a Slack failure. This is a Slack design. Slack is built to separate teams—channels, threads, integrations scattered across tools. It works beautifully for that. But when your customer journey touches sales, support, and back-office in one breath, Slack's architecture becomes friction. Lark and Orin take different paths. Lark merges team collaboration with linked customer context. Orin wraps customer data, contracts, invoices, and team chat into one surface. Neither is automatically right. But both solve a real problem Slack won't. The Slack Architecture: Strength and Limit Slack does one thing exceptionally: async team messaging with search and integrations. It has no opinions about your business. You build channels, connect your tools, and message within silos of your own making. For a pure back-office team (engineering, finance, HR), this is ideal. Separate problems, separate chat. But the moment a customer touches multiple teams, Slack's strength becomes a weakness. Slack has no built-in concept of "this conversation is about customer X, contract Y, or deal Z." You're managing that context yourself—or losing it. Real scenario: A customer support ticket arrives in Slack. Support replies. Sales doesn't see the ticket because it's in #support, not #sales. Support escalates. Sales says "we already offered them a discount," but that context is in a DM from three months ago. Finance invoiced them anyway and now the customer is upset. Slack never knew these three conversations were the same customer. Slack's workaround is threads and external ticketing. You integrate Zendesk or Freshdesk, create a Salesforce connector, and now you're managing context across five tools. Slack itself remains channel-based and team-siloed. Lark's Approach: Blended Collab with Customer Threading Lark was built for cross-team work in large Asian enterprises. It treats team chat as a surface for both internal collab and lightweight customer context. In Lark, a support thread can surface linked contact data, conversation history, and previous interactions—all within the chat itself. Your sales person sees the support thread because Lark knows it's customer X. Your finance person sees the invoice status in the same thread because Lark threads are data-aware. Strengths: Cross-team visibility. One customer, one conversation thread, all teams see the context. Lighter setup. You're not managing five tool integrations; Lark handles the threading. Enterprise-grade async. Lark is built for global, async teams. Search, thread history, and moderation are robust. Limits: Customer data lives elsewhere. Lark threads link to your CRM, but you're still managing two systems. Your invoices, contracts, and pipeline live in a separate tool. Pricing scales on seats. At 50 people, Lark's per-seat cost moves upward. SMBs often find themselves paying for a platform that's over-built for their team size. No native invoicing, contracts, or bookings. You still need point tools. Lark solves the chat silo but not the overall business silo. Orin's Path: One Platform, Zero Context Loss Orin is built for SMBs where the same person often wears multiple hats. Instead of separating chat from CRM from invoicing, Orin merges them into one surface. Your unified inbox shows WhatsApp, SMS, and email from customers. Your CRM shows deals, contacts, and history. Your invoices , contracts , and team chat all live in the same place. When support replies to a customer, sales sees it because the customer is the unit of organization, not the channel. Strengths: Zero context loss. Customer X has one record. Every interaction—chat, invoice, contract, call—lives there. Support, sales, and finance see the same truth. Flat SMB pricing. Orin charges per user or per monthly volume, not per tool. You're not paying separately for chat, CRM, invoicing, and contracts. Built-in business logic. Send an invoice from a deal, create a contract from a quote, book a meeting without leaving the customer record. No integration tax. Customer-first messaging. WhatsApp, SMS, and email thread to the same customer, so you're not chasing context across channels. Limits: Fewer "fun" integrations. Orin has no Giphy in chat, no Slack workflow library. It's built for work, not socializing. Smaller than Slack. You have fewer plug-ins, fewer templates, fewer community scripts. But you also have fewer distractions. Different mental model. If your team is deeply wed to Slack culture, Orin requires a shift to "customer-first" thinking rather than "channel-first." Which Silo Matters Most: SMBs vs. Scale The honest answer depends on how many teams actually interact around a customer: Pure support or pure sales