Tanka (tanka.ai) is the AI-powered team messenger that placed #5 on Product Hunt's 2025 annual leaderboard with 1,433 upvotes. Its core technical claim is the first business communication platform built on persistent long-term memory — an AI layer that remembers every conversation, document, and decision across a team's connected tools, and uses that context to generate smart replies that actually sound like the user and reflect real business context rather than generic suggestions.
What Is Tanka?
The problem Tanka addresses is what its team calls Organisational Amnesia: the McKinsey-cited statistic that employees spend 30% of their working week searching for information they already possess, and the Forrester finding that Fortune 500 companies lose $31.5 billion annually to knowledge loss from employee turnover. Tanka's answer is a persistent memory layer — branded EverMemOS — that ingests conversations and files from connected apps and makes that knowledge available to AI agents that can generate replies, create documents, and route follow-up tasks without being re-prompted from scratch each session.
Tanka connects to Slack, Gmail, Outlook, WhatsApp, Telegram, Google Drive, Notion, Dropbox, and 95+ additional integrations. The AI does not require users to change their existing communication habits — it learns from where work already happens.
Key Features
- EverMemOS long-term memory — Proprietary memory knowledge graph that retains and indexes all team conversations, documents, and decisions across connected platforms — the foundational layer that differentiates Tanka from standard AI assistants
- Context-aware smart replies — AI-drafted responses grounded in actual business context, past decisions, and team communication style — not generic suggestions
- AI document generation — Generate pitch decks, business plans, project summaries, and reports from conversational context; outputs cite the source conversations and files they drew from
- Cross-platform unified inbox — Triage Slack, Gmail, WhatsApp, and Outlook messages in a single view with smart reply available across all channels
- Calendar integration — Google and Outlook calendar management; create events and get daily briefings from within the platform
- Figma export for prototypes — AI-generated product prototypes can export directly to Figma
- ISO/IEC 27001:2022 and SOC 2 Type II compliance — Enterprise-grade security certifications for regulated industries
Pricing
Source: tanka.ai and verified community sources, March 2026.
- Free (Basic) — Full core feature access for teams under 50 members; all integrations; EverMemOS memory layer included
- Professional — from ~$299/month — For teams of 50+ members; full AI long-term memory access; priority support; advanced analytics; dedicated infrastructure options
- Enterprise — custom pricing — Dedicated infrastructure; enhanced compliance; custom integrations; dedicated support team
Tanka vs Slack AI vs Microsoft Copilot
Tanka's positioning is distinct from both Slack AI and Microsoft Copilot. Slack AI summarises threads and surfaces search results within the Slack ecosystem — it does not maintain persistent memory across sessions or generate new documents from conversational context. Microsoft Copilot integrates across the M365 suite but requires M365 licensing and does not natively connect to Slack, WhatsApp, or Telegram. Tanka's advantage is cross-platform memory that works regardless of which communication tools a team uses — the EverMemOS layer is platform-agnostic. The limitation is that Tanka's free tier caps at 50 members, making it primarily a startup and SME tool in its current pricing structure.
Pros & Cons
Pros:
- #5 Product Hunt 2025 with 1,433 upvotes — strong community validation for a novel communication category
- Free for teams under 50 — genuine full-featured access, not a crippled trial
- Cross-platform memory works across 95+ integrations regardless of existing tool stack
- SOC 2 Type II and ISO 27001 compliance covers regulated industry use cases
Cons:
- Professional plan pricing (~$299/month for 50+ member teams) is significant for early-stage companies
- Long-term memory architecture is proprietary — no data portability standard currently published
- Microsoft Teams integration is on the roadmap but not yet available as of March 2026
- AI output quality depends on the volume and quality of connected data — new teams see limited value until sufficient conversation history is ingested
Who Should Use Tanka?
Tanka is the right tool for startup and scale-up teams under 50 people who use multiple communication platforms and are losing productivity to repeated context-setting and institutional knowledge loss. The free tier is a genuine working product, not a sales funnel. Teams over 50 need to evaluate whether the Professional plan's value justifies the cost against Slack AI or Copilot add-ons to existing infrastructure. Regulated industries requiring SOC 2 compliance should note that Tanka meets this requirement, which most AI communication tools currently do not.
Bottom Line
Tanka is the most technically distinctive AI communication tool to emerge from Product Hunt's 2025 cohort — the long-term memory architecture is a genuine category innovation, not a feature addition. Free for teams under 50 removes the adoption barrier entirely. The key question for larger teams is whether cross-platform memory justifies the Professional plan cost against the AI features already bundled into Slack and Microsoft 365.
