nest54 vs. Slack
Looking for a Slack alternative or want to compare both solutions? Here you can see how nest54 and Slack differ – and where Slack is stronger. Every statement about Slack is backed by a source and refers to the paid plans.
In short
Slack specializes in communication: channels, huddles, clips, Slack Connect with other organizations, AI summaries and more than 2,600 apps. nest54 combines chat and video meetings with file storage, office, Kanban boards, calendar, contacts and email in one workspace and is hosted in Germany. If you mainly need a messenger with a large range of integrations, Slack is a good fit. If you need communication and project files in one place, hosted in Germany, nest54 is an alternative.
nest54 and Slack: feature comparison
| Feature | nest54 | Slack |
|---|---|---|
| Communication | ||
| Channels, direct messages and threadsin real time, with reactions and mentions | available | available[2] |
| Video meetings with screen sharingin the browser, from a workspace, chat or calendar | available | availablehuddles: up to 50 people on paid plans, up to two on the free plan[3] |
| Audio and video clipsshort recordings instead of a meeting | not available | available[4] |
| AI summaries of conversationsnest54: AI analysis for transcripts only | not available | availablesummaries and recaps depending on plan[5] |
| Apps for iOS and Androidnest54: in the mobile browser; app with push notifications planned | not available | available[7] |
| Desktop apps for Windows, macOS and Linuxnest54: desktop sync for Windows, otherwise in the browser | partial / only in certain plans or with add-on products | available[7] |
| Collaboration with other organizations | ||
| Shared channels with other organizationschat in cross-company workspaces and direct chats with external people | available | availableSlack Connect on paid plans, up to 250 organizations per channel[8][9] |
| Cross-company workspaces with files, boards and calendarhost principle, two-step approval, trust rules per organization | available | partial / only in certain plans or with add-on productsSlack Connect connects channels; files, canvases and lists in the channel[8][10][11] |
| Guest accounts for external peopleguests with read-only access to workspaces | available | partial / only in certain plans or with add-on productspaid plans only[12] |
| Transcription of meetings with guests and external peoplewith every participant’s consent, audio deleted immediately | available | not availableAI notes not available in huddles with external people or guests[6] |
| Project work | ||
| File storage with folders, versions and share linkstrash, locking, links with password and expiry date | available | partial / only in certain plans or with add-on productsfiles are shared in conversations, up to 1 GB per file[13] |
| Edit Word, Excel and PowerPoint files in the browsertogether in real time, on nest54’s servers | available | partial / only in certain plans or with add-on productscanvases as a separate document format[10] |
| Kanban boards for taskscards with assignees, due dates and checklists | available | availablelists with board view, on paid plans[11] |
| Built-in calendar and address bookpersonal and per workspace, CalDAV and CardDAV | available | not availableGoogle Calendar and Outlook Calendar connected via apps[14][15] |
| Mailbox in the app, bring emails into projects“Save to workspace” and “Card from email” | available | partial / only in certain plans or with add-on productsemails can be forwarded to Slack[16] |
| No-code automationsrules per workspace with a log | available | availableWorkflow Builder on paid plans[17] |
| Integrations with external servicesnest54: 23 services as ready-made mini apps, more via MCP | partial / only in certain plans or with add-on products | availablemore than 2,600 apps[18] |
| Data protection and security | ||
| Hosting in Germanynest54: in all plans | available | partial / only in certain plans or with add-on productsdata residency e.g. in Frankfurt for Business+ and Enterprise; profile data and other data excluded[19] |
| Separate key per organizationnest54: files encrypted with the organization’s own key, managed by nest54 | available | partial / only in certain plans or with add-on productsEnterprise Key Management with keys in your own AWS KMS, add-on for Enterprise[20] |
| Audit log and legal holdhash-chained audit log, tamper-proof folders; from the Business plan | available | partial / only in certain plans or with add-on productson Enterprise plans[21][1] |
As of October 28, 2026. Information on Slack is based on the provider’s publicly available information (see sources). Scope may vary by plan, edition and settings. Please let us know about outdated details at info@nest54.com.
Strengths compared
Where nest54 adds value
- File storage with folders and versions, office in the browser, Kanban boards, calendar and contacts in the same workspace.
- Hosting in Germany in all plans; at Slack, data residency is reserved for Business+ and Enterprise plans.
- Transcription of meetings including guests and external people, with every participant’s consent.
- Separate key per organization in all plans, audit log and legal hold from the Business plan.
Where Slack is stronger
- More than 2,600 apps in the Slack directory and Workflow Builder for automations.
- Slack Connect: shared channels with up to 250 organizations.
- Apps for iOS, Android, Windows, macOS and Linux, plus audio and video clips.
- AI features such as conversation summaries, recaps and AI notes in huddles.
Frequently asked questions
Is nest54 an alternative to Slack?
Yes, if you want to use chat and video meetings together with files, office, tasks and calendar. If you are mainly looking for a messenger with a very large number of integrations, Slack offers the larger range of apps.
Where is the data stored?
nest54 is operated on servers in Germany. Slack offers data residency, for example in Frankfurt, on its Business+ and Enterprise plans; according to Slack, profile data, for example, is excluded.
Can I collaborate with other companies?
Yes, with both solutions. Slack Connect links channels between organizations. In nest54, organizations share entire workspaces with files, boards and calendar; data and keys stay with the organization that created the workspace.
Sources
- Slack pricing
- What is Slack? – Slack Help Center
- Use huddles in Slack – Slack Help Center
- Record audio and video clips in Slack – Slack Help Center
- Guide to AI features in Slack – Slack Help Center
- Use AI to take huddle notes in Slack – Slack Help Center
- Downloads | Slack
- Use Slack Connect to work with other companies in channels – Slack Help Center
- Work with external partners – Slack Help Center
- Use a canvas in Slack – Slack Help Center
- Use lists in Slack – Slack Help Center
- Understand guest roles in Slack – Slack Help Center
- Add files to Slack – Slack Help Center
- Google Calendar for Slack – Slack Help Center
- Microsoft Outlook Calendar for Slack – Slack Help Center
- Send emails to Slack – Slack Help Center
- Guide to Slack Workflow Builder – Slack Help Center
- Slack Integrations: Apps, Plugins & Connectors
- Data residency for Slack – Slack Help Center
- Slack Enterprise Key Management – Slack Help Center
- Audit logs in Slack – Slack Help Center
- Slack Privacy Policy (Anbieter und Sitz)
- Media Kit | Slack (Marken)
Slack is a trademark of Slack Technologies, LLC, a Salesforce company. nest54 is not affiliated with Slack Technologies, LLC.
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