What is the best business instant messaging for small businesses?

The “best” business instant messaging app for a small business is usually **Slack** or **Microsoft Teams**, with **Google Chat** close behind—your ideal choice depends mainly on your size, budget, and which tools (Google Workspace, Microsoft 365, etc.) you already use.[1][3][4]

Here’s how to choose quickly, then a brief comparison of the top options.

### Start with your existing tools

- **If you already use Microsoft 365 (Outlook, Word, Excel):**

- **Best fit:** **Microsoft Teams** – tightly integrated with Office apps, meetings, and OneDrive/SharePoint.[1][3][7]

- Good for: 10+ people, lots of meetings, document collaboration, and if you like everything in one place.

- **If you already use Google Workspace (Gmail, Docs, Drive):**

- **Best fit:** **Google Chat** – built into Gmail and Google Workspace, easy channels (Spaces) and direct messages.[1][3]

- Good for: small teams that live in Gmail/Docs and want simple, low-friction chat.

- **If you want the most polished chat experience and integrations, regardless of suite:**

- **Best fit:** **Slack** – often rated the top team chat app for overall usability, search, and integrations.[1][3][4]

- Good for: startups and growing small businesses that use many different tools (CRM, project management, etc.).

### If you have no ecosystem preference and care a lot about cost

- **Best free/low‑cost Slack‑style tool:** **Pumble** – focuses on being a budget‑friendly alternative to Slack, with channels, direct messages, and searchable history.[1][4]

- **All‑in‑one with chat + intranet + collaboration:** **MangoApps** is positioned specifically for small businesses wanting messaging plus a broader digital workplace.[7]

### Quick comparison of top small‑business options

| Tool | Best for small businesses that… | Key strengths |

|-------------------|---------------------------------------------------------------------|-------------------------------------------------------------|

| **Slack** | Want top‑tier chat and integrations, flexible setup | Excellent UX, channels, app integrations, search[1][3][4] |

| **Microsoft Teams** | Are already on Microsoft 365, need meetings + files + chat together | Deep Office integration, video calls, team hubs[1][3][7] |

| **Google Chat** | Use Google Workspace and want simple, integrated messaging | Built into Gmail, easy for small teams, Spaces for topics[1][3] |

| **Pumble** | Need Slack‑like features on a tighter budget | Free/affordable, channels, threads, team chat[1][4] |

| **Discord** | Have a very informal culture or community‑style collaboration | Voice channels, informal chat style, popular with devs[1] |

| **MangoApps** | Want messaging plus intranet, project spaces, and collaboration | Combines chat, feeds, documents, and task tools[7] |

### How to decide in 5 minutes

Ask these three questions:

1. **What suite do we already pay for?**

- Microsoft 365 → choose **Teams**.

- Google Workspace → choose **Google Chat**.

- Neither / mixed tools → likely **Slack** (or **Pumble** if budget is tight).

2. **How many people and how fast are we growing?**

- Under ~10 users, simple needs → **Slack free**, **Google Chat**, or **Pumble** will usually be enough.[1][3][4]

- Planning to grow quickly or need compliance/controls → favor **Slack paid**, **Teams**, or **MangoApps**.[3][7]

3. **What’s our main use case?**

- Internal day‑to‑day chat with integrations → **Slack**, **Teams**, **Pumble**.[1][3][4]

- Chat plus broader collaboration hub/intranet → **Teams** or **MangoApps**.[6][7]

- Community‑style space or lots of voice hangouts → **Discord**.[1]

If you tell me:

- how many people are on your team,

- what tools you already use (Google, Microsoft, something else),

- and whether you need mostly internal chat or also client communication,

I can recommend one specific app and a plan level tailored to your situation.