Tungsten vs Competitors
The Tungsten Advantage
- Purpose-built for Part 21J — workflows and approvals tailored to EASA design office certification, not a generic tool with aerospace add-ons
- Predictable, flat-rate pricing — £299/month for unlimited users and projects, no per-seat surcharges, no feature gating
- Same-day implementation — no complex IT setup, no weeks of configuration; start your first project today
- Built by aerospace engineers — domain expertise in Part 21J workflows, approval chains, and regulatory requirements
Purpose & Focus
Yes — workflows, templates, and approvals are tailored exclusively to Part 21J certification
Sassofia: General aerospace compliance tool; serves multiple certification regimes. Not Part 21J-specific.
Yes — built by aerospace engineers who understand real certification workflows
Sassofia: Generic document management with aerospace add-ons
Yes — embedded regulatory knowledge for Part 21J submission requirements
Sassofia: Broader compliance coverage, less Part 21J specialisation
Core Features
Yes — version control, approval chains, audit trails baked in
Sassofia: Document storage with workflow add-ons
Yes — capture entire project state for formal certification review
Sassofia: Document versioning; no project-level snapshots
Yes — integrated task assignment with status and deadline visibility
Sassofia: Limited task tracking; requires external tools
Yes — fine-grained permissions for engineers, reviewers, approvers, observers
Sassofia: Basic user roles; less granular
Yes — search projects by type, classification, keywords, and document content
Sassofia: Document-level search; limited project filtering
Pricing & Commercial Model
£299/month (billed annually) — unlimited users, unlimited projects
Sassofia: Per-seat or per-project licensing; cost scales with team size
Included — all engineers, approvers, observers unlimited
Sassofia: Typical per-user cost £50–150/month
None — all features included in every plan
Sassofia: Advanced features require premium tiers
Yes — no hidden costs; all features disclosed upfront
Sassofia: Feature availability depends on tier; pricing opacity
Implementation & Onboarding
Typically same day — create organisation, invite team, start project
Sassofia: 1–2 weeks; requires configuration, integrations, training
Yes — web-based, zero IT overhead
Sassofia: Often requires IT setup, data migration, API integration
Yes — designed to slot into your current process, not replace it
Sassofia: Often requires process re-engineering to fit the tool
Dedicated support team familiar with Part 21J workflows
Sassofia: Generic support; less aerospace domain knowledge
Security & Compliance
Yes — AWS infrastructure in European data centres
Sassofia: Varies; may use US/global data centres
Yes — standard for all data
Sassofia: Standard, but secondary to workflow features
Yes — every action logged; organisation-scoped activity trail
Sassofia: Basic logging; not always certification-grade
Yes — privacy-by-design, data retention controls
Sassofia: Compliant, but not tailored to aerospace
Yes — automated daily backups
Sassofia: Standard backup policies
Flexibility & Enterprise Needs
Available for enterprise customers — contact for custom quote
Sassofia: Limited; primarily SaaS-only
Available for enterprise — enables offline operation
Sassofia: Not typically supported
Available for enterprise — integrate with CAD, ERP, MES systems
Sassofia: Limited API flexibility
Full project export in standard formats (PDF, spreadsheet, archive)
Sassofia: Document-level export; less comprehensive
Ready to experience the difference?
Most design offices see improved workflow efficiency and compliance confidence within the first week. Start a free trial and migrate a recent certification project to see it in action.