Industries / Productivity
Productivity
Productivity tools live or die on speed and friction. People use them dozens of times a day, and a 400-millisecond delay that would be invisible elsewhere becomes intolerable when it happens forty times before lunch.
We build task managers, collaboration platforms, and workflow automation where performance, keyboard-first interaction, and offline resilience are treated as core product requirements.
Task & Project Management
Systems that stay fast whether a user has fifty tasks or fifty thousand.
- Boards, lists, timeline, and calendar views
- Dependencies and recurring tasks
- Bulk operations and keyboard shortcuts
- Custom fields and saved filters
Real-Time Collaboration
Multiple people in the same document or board without conflicts or lost work.
- CRDT-based conflict-free editing
- Live presence and cursors
- Comment threads and mentions
- Granular permission models
Workflow Automation
Rule builders and integrations that let teams remove repetitive steps themselves, without needing an engineer for every small automation.
Offline-First Architecture
Local-first data with background sync and proper conflict resolution — so the product keeps working on a plane, a train, or a bad conference network.
Built for speed
Productivity tools are judged on latency. These are the technologies we reach for when milliseconds matter.
Realtime
Local-first
Frontend
Sync
Productivity products we build
Everything below is in scope for a typical engagement — we scope precisely against your situation before quoting.
Every build includes performance budgets and load testing at realistic data volumes.
- Task and project management — multi-view planning tools with dependencies and automation.
- Team collaboration platforms — real-time docs, boards, and shared workspaces.
- Note-taking and knowledge bases — fast capture with structured retrieval.
- Time tracking and reporting — low-friction capture with useful analysis.
- Workflow automation — visual rule builders and third-party integrations.
- Focus and habit tools — behavior-change products grounded in real research.
Frequently
Asked
Questions
Optimistic UI updates, local-first data, virtualized rendering for long lists, and aggressive prefetching. The interface responds immediately and reconciles with the server behind the scenes.
Yes — typically CRDT-based, which handles concurrent edits without a central lock and degrades gracefully when connections drop.
CRDTs resolve most conflicts automatically. For genuinely ambiguous cases we surface a clear choice to the user rather than silently picking a winner.
Calendar, email, Slack, GitHub, CRMs, and generic webhook or Zapier support. We also build public APIs so your customers can integrate independently.
Yes — Chrome and Firefox extensions, plus Electron or Tauri desktop applications sharing a codebase with the web product.
Progressive disclosure: immediate value with minimal setup, advanced capability revealed as users need it. Long upfront tutorials mostly get skipped.
Speed is the product
In productivity software, performance isn't a technical detail — it's the core value proposition. A tool that saves thirty seconds a task but costs ten in friction has spent most of its own benefit.
Tell us about your project!
- Email: hello@11seas.com
- WhatsApp: Message us
- Call: +1 (000) 000-0000
Get clarity on your idea, scope, and next steps — in one short call.
