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Software · head to head

AGI STK vs AviaSIM Pro

AGI STK logo

AGI STK

Software

Systems Tool Kit for space and aerospace analysis

From
Free
Rated
-
Full reviewWebsite
A

AviaSIM Pro

Software

Professional flight simulation and pilot training platform

From
$179/session
Rated
-
Full reviewWebsite

The short version

  • Only AGI STK has a free tier, so it costs nothing to try first.
  • Each has a real cost: AGI STK sTK is sold as a ladder of separate licences, STK Pro, STK Premium Air, STK Premium Space and STK Enterprise, so mission areas are gated behind different products; AviaSIM Pro limited to civilian flight simulation experience, not professional pilot certification training
  • They diverge on capability: AGI STK covers Orbit analysis, AviaSIM Pro covers High-fidelity flight models.

Where they differ

Only the attributes on which AGI STK and AviaSIM Pro actually diverge.

Attributes where AGI STK and AviaSIM Pro differ
AttributeAGI STKAviaSIM Pro
Starting priceFree$179/session
Pricing modelsubscriptionUnknown
Free tierYesNo
PlatformsWindows, LinuxIn-person facility
Founded19892012

Identical on both: user rating (Not yet rated), category (Unknown).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in AGI STK

  • Orbit analysis
  • 4D visualization
  • Mission planning
  • Communication analysis
  • Conjunction assessment
  • MATLAB
  • Python
  • C++/.NET API

Only in AviaSIM Pro

  • High-fidelity flight models
  • Real-time weather simulation
  • Emergency procedure training
  • Multi-crew coordination
  • Performance analytics
  • Flight deck hardware
  • Motion platforms
  • LMS systems

Both cover

  • Data encryption
  • Windows support

What people use each for

The jobs each tool is most often brought in to do.

AGI STK

  • Modelling satellite orbits, coverage and conjunction risknot AviaSIM Pro
  • Mission analysis and visualization for air, space and defence systemsnot AviaSIM Pro

AviaSIM Pro

  • Initial type ratingnot AGI STK
  • Recurrent trainingnot AGI STK
  • Emergency proceduresnot AGI STK
  • CRM trainingnot AGI STK
  • Proficiency checksnot AGI STK

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

AGI STK

  • STK is sold as a ladder of separate licences, STK Pro, STK Premium Air, STK Premium Space and STK Enterprise, so mission areas are gated behind different products
  • Further capability is sold as separate add-on toolkits including TETK, the RF Channel Modeler and the STK Missile Toolkit
  • Distributing an application built on STK Engine to end users requires each of them to hold an Ansys STK Engine Runtime License
  • Free access is limited to students at accredited institutions and to time-limited trials
  • No price, minimum or cost driver is published for any STK tier

AviaSIM Pro

  • Limited to civilian flight simulation experience, not professional pilot certification training
  • Locations concentrated in specific cities, limiting accessibility for most potential users
  • High session costs may be prohibitive for recreational learners ($179 minimum for 60 minutes)

Pricing, plan by plan

AGI STK

Free
  • STK FreeFree
    • Basic analysis
    • 2D/3D visualization
    • Orbit analysis
  • STK Professional$15000/year
    • Advanced analysis
    • Premium modules
    • API access
  • STK Enterprise$50000/year
    • All modules
    • Multi-user
    • Custom solutions

AviaSIM Pro

$179/session
  • Discovery Package$179/60 min session
    • Full-size commercial cockpit
    • Professional instructor
    • 180-degree HD displays
  • Pilot Introductory Program$549/240 min session
    • Half-day immersion
    • Theory and hands-on practice
    • Experienced instructor pilots

Which should you pick?

Choose AGI STK if

  • You need orbit analysis.
  • You want to start without paying.
  • You work on Windows, Linux.
  • You also want 4d visualization.
AGI STK review

Choose AviaSIM Pro if

  • You need high-fidelity flight models.
  • You work on In-person facility.
  • You also want real-time weather simulation.
AviaSIM Pro review

Questions people ask

Is AGI STK or AviaSIM Pro better?
Neither clearly leads. AGI STK starts at Free and AviaSIM Pro at $179/session, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, AGI STK or AviaSIM Pro?
AGI STK has a free tier; the other does not. Paid plans start at Free for AGI STK and $179/session for AviaSIM Pro.
Does AGI STK or AviaSIM Pro run on more platforms?
AGI STK runs on Windows, Linux. AviaSIM Pro runs on In-person facility.
Can I use AGI STK for free?
Yes. AGI STK has a free tier, so you can try it without paying. AviaSIM Pro starts at $179/session.
What is AGI STK best used for?
AGI STK is most often used for modelling satellite orbits, coverage and conjunction risk, mission analysis and visualization for air, space and defence systems. Of those, modelling satellite orbits, coverage and conjunction risk and mission analysis and visualization for air, space and defence systems are not what AviaSIM Pro is typically brought in for.
What can AGI STK do that AviaSIM Pro cannot?
AGI STK covers Orbit analysis, 4D visualization, Mission planning, Communication analysis. AviaSIM Pro covers High-fidelity flight models, Real-time weather simulation, Emergency procedure training, Multi-crew coordination. Both handle Data encryption, Windows support.

Answered from the vendors’ own pages

AviaSIM Pro: What does an AviaSIM flight experience include?

An AviaSIM session puts you in a full-size commercial aircraft cockpit with 180-degree high-definition displays. You learn how airliners work, handle the controls, and experience takeoff, cruising, and landing under instructor guidance.

Source
AviaSIM Pro: How long are AviaSIM sessions and what are the pricing options?

AviaSIM offers sessions ranging from 60 minutes (Discovery Package at $179) to 240 minutes (Pilot Introductory Program at $549). A Fear of Flying Therapy program with 97% success rate costs $389.

Source
AviaSIM Pro: Where are AviaSIM locations available?

As of 2026, AviaSIM operates in 30+ cities worldwide including Phoenix, Fort Lauderdale, Denver, Houston, Dallas, Washington D.C., Chicago, and Orlando, with new openings planned in Raleigh, Minneapolis, and San Antonio.

Source
AviaSIM Pro: Can multiple people participate in a single AviaSIM session?

Yes. The Duo Package ($219 for 60 minutes) allows two people to share the cockpit experience together, and up to three free observers can watch from the cockpit.

Source
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