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X-Plane 12 vs AGI STK

X-Plane 12 logo

X-Plane 12

Software

Professional flight simulation software

From
$59.99/lifetime
Rated
-
Full reviewWebsite
AGI STK logo

AGI STK

Software

Systems Tool Kit for space and aerospace analysis

From
Free
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: X-Plane 12 commercial and professional use requires a separate licence at $1,000, against $59.99 for the personal digital download; 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
  • They diverge on capability: X-Plane 12 covers Flight physics, AGI STK covers Orbit analysis.

Where they differ

Only the attributes on which X-Plane 12 and AGI STK actually diverge.

Attributes where X-Plane 12 and AGI STK differ
AttributeX-Plane 12AGI STK
Starting price$59.99/lifetimeFree
Pricing modelone-timesubscription
Free tierNoYes
PlatformsWindows, Macos, LinuxWindows, Linux
Founded19951989

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 X-Plane 12

  • Flight physics
  • Global scenery
  • Realistic aircraft
  • Weather simulation
  • ATC system
  • Plugins
  • Add-ons
  • VR headsets

Only in AGI STK

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

Both cover

  • Windows support
  • Linux support

What people use each for

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

X-Plane 12

  • Flight simulation for private pilots and enthusiastsnot AGI STK
  • Procedure practice and aircraft familiarisationnot AGI STK

AGI STK

  • Modelling satellite orbits, coverage and conjunction risknot X-Plane 12
  • Mission analysis and visualization for air, space and defence systemsnot X-Plane 12

Where each one falls short

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

X-Plane 12

  • Commercial and professional use requires a separate licence at $1,000, against $59.99 for the personal digital download
  • The personal edition therefore cannot be used for paid training or commercial simulation
  • The professional edition is a distinct product rather than an upgrade path

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

Pricing, plan by plan

X-Plane 12

$59.99/lifetime
  • X-Plane 12$59.99/lifetime
    • Full simulator
    • Global scenery
    • Realistic physics

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

Which should you pick?

Choose X-Plane 12 if

  • You need flight physics.
  • You work on Windows, Macos, Linux.
  • You also want global scenery.
X-Plane 12 review

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

Questions people ask

Is X-Plane 12 or AGI STK better?
Neither clearly leads. X-Plane 12 starts at $59.99/lifetime and AGI STK at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, X-Plane 12 or AGI STK?
AGI STK has a free tier; the other does not. Paid plans start at $59.99/lifetime for X-Plane 12 and Free for AGI STK.
Does X-Plane 12 or AGI STK run on more platforms?
X-Plane 12 runs on Windows, Macos, Linux. AGI STK runs on Windows, Linux.
Can I use AGI STK for free?
Yes. AGI STK has a free tier, so you can try it without paying. X-Plane 12 starts at $59.99/lifetime.
What is X-Plane 12 best used for?
X-Plane 12 is most often used for flight simulation for private pilots and enthusiasts, procedure practice and aircraft familiarisation. Of those, flight simulation for private pilots and enthusiasts and procedure practice and aircraft familiarisation are not what AGI STK is typically brought in for.
What can X-Plane 12 do that AGI STK cannot?
X-Plane 12 covers Flight physics, Global scenery, Realistic aircraft, Weather simulation. AGI STK covers Orbit analysis, 4D visualization, Mission planning, Communication analysis. Both handle Windows support, Linux support.
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