Tungsten vs Competitors

Why Part 21J design offices choose Tungsten — specialized workflows, transparent pricing, and aerospace domain expertise.

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

Designed for EASA Part 21J Design Offices
Tungsten

Yes — workflows, templates, and approvals are tailored exclusively to Part 21J certification

Sassofia / Others

Sassofia: General aerospace compliance tool; serves multiple certification regimes. Not Part 21J-specific.

Aerospace domain expertise in design
Tungsten

Yes — built by aerospace engineers who understand real certification workflows

Sassofia / Others

Sassofia: Generic document management with aerospace add-ons

Regulatory compliance (EASA-focused)
Tungsten

Yes — embedded regulatory knowledge for Part 21J submission requirements

Sassofia / Others

Sassofia: Broader compliance coverage, less Part 21J specialisation

Core Features

Structured document workflows
Tungsten

Yes — version control, approval chains, audit trails baked in

Sassofia / Others

Sassofia: Document storage with workflow add-ons

Snapshot reviews (point-in-time review capture)
Tungsten

Yes — capture entire project state for formal certification review

Sassofia / Others

Sassofia: Document versioning; no project-level snapshots

Task tracking & deadline management
Tungsten

Yes — integrated task assignment with status and deadline visibility

Sassofia / Others

Sassofia: Limited task tracking; requires external tools

Role-based access control
Tungsten

Yes — fine-grained permissions for engineers, reviewers, approvers, observers

Sassofia / Others

Sassofia: Basic user roles; less granular

Full-text search with project filtering
Tungsten

Yes — search projects by type, classification, keywords, and document content

Sassofia / Others

Sassofia: Document-level search; limited project filtering

Pricing & Commercial Model

Flat-rate per-organisation pricing
Tungsten

£299/month (billed annually) — unlimited users, unlimited projects

Sassofia / Others

Sassofia: Per-seat or per-project licensing; cost scales with team size

No per-seat surcharges
Tungsten

Included — all engineers, approvers, observers unlimited

Sassofia / Others

Sassofia: Typical per-user cost £50–150/month

Feature gating
Tungsten

None — all features included in every plan

Sassofia / Others

Sassofia: Advanced features require premium tiers

Transparent pricing
Tungsten

Yes — no hidden costs; all features disclosed upfront

Sassofia / Others

Sassofia: Feature availability depends on tier; pricing opacity

Implementation & Onboarding

Time to first certification project
Tungsten

Typically same day — create organisation, invite team, start project

Sassofia / Others

Sassofia: 1–2 weeks; requires configuration, integrations, training

No complex IT integration required
Tungsten

Yes — web-based, zero IT overhead

Sassofia / Others

Sassofia: Often requires IT setup, data migration, API integration

Supports existing workflows
Tungsten

Yes — designed to slot into your current process, not replace it

Sassofia / Others

Sassofia: Often requires process re-engineering to fit the tool

Ongoing support
Tungsten

Dedicated support team familiar with Part 21J workflows

Sassofia / Others

Sassofia: Generic support; less aerospace domain knowledge

Security & Compliance

Data residency (EU/UK)
Tungsten

Yes — AWS infrastructure in European data centres

Sassofia / Others

Sassofia: Varies; may use US/global data centres

Encryption (at rest & in transit)
Tungsten

Yes — standard for all data

Sassofia / Others

Sassofia: Standard, but secondary to workflow features

Audit trail (comprehensive)
Tungsten

Yes — every action logged; organisation-scoped activity trail

Sassofia / Others

Sassofia: Basic logging; not always certification-grade

GDPR compliance
Tungsten

Yes — privacy-by-design, data retention controls

Sassofia / Others

Sassofia: Compliant, but not tailored to aerospace

Backup & disaster recovery
Tungsten

Yes — automated daily backups

Sassofia / Others

Sassofia: Standard backup policies

Flexibility & Enterprise Needs

Self-hosted / on-premises deployment
Tungsten

Available for enterprise customers — contact for custom quote

Sassofia / Others

Sassofia: Limited; primarily SaaS-only

Air-gapped deployment (disconnected networks)
Tungsten

Available for enterprise — enables offline operation

Sassofia / Others

Sassofia: Not typically supported

Custom API integrations
Tungsten

Available for enterprise — integrate with CAD, ERP, MES systems

Sassofia / Others

Sassofia: Limited API flexibility

Data export options
Tungsten

Full project export in standard formats (PDF, spreadsheet, archive)

Sassofia / Others

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.