Engineering calculations.
All disciplines. One platform.

95+ validated calculators. 5 simulation engines. AI Design Agent that builds flowsheets, P&IDs, and HAZOP reports from a single prompt. Cross-discipline linking. $0.05 per AI design.

The engineering tool problem

Scattered spreadsheets

Your pipe sizing is in one Excel file, cable sizing in another. Nothing is linked.

$40,000/year per seat

ASPEN HYSYS, ETAP, STAAD.Pro, AutoCAD — 4 tools at $10K-$40K each. Tectaflow replaces all for $79/month.

No cross-discipline linking

Change a pump duty and you manually update everything. Tectaflow does it automatically.

Tectaflow vs. the status quo

FeatureTraditional ToolsTectaflow
Process SimulationASPEN HYSYS — $15,000-$40,000/yrIncluded
Electrical AnalysisETAP — $10,000-$25,000/yrIncluded
Structural AnalysisSTAAD.Pro — $5,000-$15,000/yrIncluded
Engineering DrawingsAutoCAD — $2,000-$5,000/yrIncluded
Cross-discipline linkingNot availableAutomatic
AI Design AgentNot availableOne-prompt design
Total (1 seat/year)$32,000-$85,000$948

Five disciplines. One platform.

Every calculator follows industry standards (ASME, API, IEC, AISC). Results are cross-linked via equipment tags.

Process

Pipe sizing, pump sizing, heat exchangers, flash drums, distillation, compressors, relief valves

Electrical

Cable sizing, transformers, motor starting, voltage drop, short circuit, power factor

Structural

Steel beams, columns, connections, foundations, wind loads, anchor bolts

Piping

Wall thickness (B31.3), pipe supports, expansion loops, surge analysis

Safety

HAZOP, SIL assessment, gas dispersion, fire radiation, bow-tie diagrams

More calculators shipping monthly

Built for real engineering workflows

AI Design Agent ($0.05/design)

Type 'Design a flash drum for ethanol-water at 80°C' — AI plans 7 tasks, builds 3 equipment items, solves, checks against standards, generates P&ID + HAZOP + cost estimate. 90 seconds.

5 Simulation Engines

Process (flash, distillation, HX, reactor), Electrical (load flow, short circuit), Structural (stiffness, code checks), Piping (Hardy-Cross), Safety (bow-tie, SIL).

Cross-Discipline Propagation

Change pump duty → motor auto-resizes → cable recalculated → foundation updated → HAZOP re-evaluated. 15 propagation paths across all disciplines.

Full Plant Package

One prompt generates: simulation + P&ID drawing + equipment datasheets + line list + HAZOP report + CAPEX/OPEX cost analysis with NSGA-II optimization alternatives.

Simple, transparent pricing

All disciplines included at every tier. No per-module add-ons.

Free

$0forever

Evaluate Tectaflow

  • 20 calculations/day
  • All 5 disciplines
  • 1 AI Design Agent session
  • Community support
Get Started

Starter

$19/month

Students & individual learners

  • 50 calculations/day
  • 3 projects
  • 100 AI queries/month
  • PDF export
  • Email support
Start Free Trial
Most Popular

Pro

$79/month

Professional engineers & consultants

  • Unlimited calculations
  • 10 projects
  • 500 AI queries/month
  • All 5 simulation engines
  • Design Agent + P&ID generation
  • NSGA-II cost optimization
  • Priority support
Start Free Trial

Team

$59/user/month

Small EPC firms (3-20 engineers)

  • Everything in Pro
  • Team collaboration
  • 1,000 AI queries/team/month
  • RBAC & audit log
  • API access
  • Shared projects
Start Free Trial

Need Business ($129/user) or Enterprise ($249/user) pricing? Contact us

Stop paying $40,000/year for scattered tools.

Join engineers who run all 5 disciplines in one platform — for 99% less.

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