How much does AGI STK cost?

AGI STK publishes 3 tiers, from Free for STK Free up to $50000/year for STK Enterprise. The entry tier costs nothing.

What is the difference between STK Free and STK Professional on AGI STK?

STK Professional costs $15000/year against Free, and adds advanced analysis, premium modules, api access, commercial use.

Is the STK Enterprise plan on AGI STK worth it?

That depends entirely on whether you need what it adds, which on the published record is all modules, multi-user, custom solutions, premium support. It costs $50000/year against $15000/year for STK Professional. Softwr has not used either tier, so this page can tell you what changes, not whether it is worth the difference to you.

Which aviation tools can I use without paying?

2 of the 8 aviation tools listed alongside AGI STK have a free tier: FltPlan Go, Flightradar24.

What am I actually paying for with AGI STK?

The record lists 20 features across 5 areas: other, integrations, security, collaboration, platform. In practice it is brought in for modelling satellite orbits, coverage and conjunction risk, mission analysis and visualization for air, space and defence systems.

Does AGI STK charge per user?

The record carries a price and a billing period for each of its 3 tiers, but not the unit that price is charged in. Per-seat and flat-rate billing look identical in this data, so check the vendor's page before budgeting for a team.

Are these AGI STK prices current?

They are what the catalogue entry holds, refreshed when the entry is. Vendors change pricing without notice and nobody at Softwr re-verifies each tier by hand, so treat this as a structured summary and the vendor's own pricing page as the authority.

What should I compare AGI STK against before paying?

The closest aviation tools in this directory are Flighty, Collins Aerospace Systems, FltPlan Go, IBS iCargo. Each has a side-by-side comparison with AGI STK covering price, platforms and features.

Aviation · pricing

AGI STK pricing

AGI STK publishes 3 tiers. Below is each one, what it adds over the tier beneath it, and where the ladder stops being worth climbing for most people.

As of 30 August 2026, AGI STK pricing is free across 3 published tiers. Figures are the vendor's list prices as recorded on this page's last check; the vendor's site is the final word.

Entry price: Free
Model: Subscription
Tiers: 3
Free tier: Yes

AGI STK plans, side by side

Every published tier in ascending order of price, with the number of features each one lists. An absence here means the record does not itemise it, not that the tier lacks it.

AGI STK pricing tiers
Plan	Price	Features listed	Step up from the tier below
STK Free	Free	4	Entry tier
STK Professional	$15000/year	4	+$15000/year, 4 more features
STK Enterprise	$50000/year	4	+$35000/year, 4 more features

What each tier adds

The set difference between each tier's feature list and the one beneath it. Where a tier lists nothing new, the vendor has either stopped repeating the inherited list or the tier raises limits rather than adding capability, the record does not distinguish the two, so this page does not either.

STK Free

Free

The entry tier. It covers basic analysis, 2d/3d visualization, orbit analysis, educational use.

STK Professional

$15000/year

Over STK Free, this tier adds:

Advanced analysis
Premium modules
API access
Commercial use

STK Enterprise

$50000/year

Over STK Professional, this tier adds:

All modules
Multi-user
Custom solutions
Premium support

Where AGI STK stops being free

STK Free, Free

Basic analysis
2D/3D visualization
Orbit analysis
Educational use

STK Professional, $15000/year

The first thing you pay for:

Advanced analysis
Premium modules
API access
Commercial use

What the product covers

The full AGI STK feature record, grouped as the catalogue groups it. This is the product as a whole; the record does not map every feature onto a specific tier.

Other

Orbit analysis
4D visualization
Mission planning
Communication analysis
Conjunction assessment

Integrations

MATLAB
Python
C++/.NET API
Flight dynamics systems
GIS platforms

Security

Government certified
Data encryption
Access controls
Audit trails

Collaboration

Team workflows
Scenario sharing
Multi-user analysis
Cloud deployment

Platform

Windows support
Linux support

People bring AGI STK in for modelling satellite orbits, coverage and conjunction risk, mission analysis and visualization for air, space and defence systems. If that is not the job you are buying for, the alternatives to AGI STK are worth a look before you commit to a tier.

How that compares in Aviation

Too few aviation tools in this directory publish a starting price to quote a meaningful median, so the table below is a like-for-like list rather than a ranking.

AGI STK entry price against other Aviation tools
Tool	Entry price	Model	Rated	Head to head
AGI STK (this page)	Free	subscription	-
Flighty	On request	Per user per month or one-time purchase	-	vs AGI STK
Collins Aerospace Systems	Free	quote	-	vs AGI STK
FltPlan Go	Free	subscription	-	vs AGI STK
IBS iCargo	$100000/year	subscription	-	vs AGI STK
Flightradar24	Free	freemium	-	vs AGI STK
CAE Flight Training	Free	usage-based	-	vs AGI STK

Ratings are aggregated from third-party sources and imported with each catalogue entry, they are not reviews hosted on Softwr. How each figure is used is set out on the AGI STK badges page.

Before you pay for AGI STK

Three things this page cannot tell you, and all three change the bill. The record carries a price and a billing period but not the unit - per-seat and flat-rate pricing are indistinguishable in this data, so a five-person team may be looking at five times the figure above. It carries no annual rate, so any discount for paying yearly is not something this page can quote. And it carries no trial length.

What it can tell you is the shape of the ladder: 3 tiers between Free and $50000/year, with the jump itemised above. Because there is a free tier, the cheapest way to answer the rest is to use it before paying anything.

AGI STK runs on windows, linux, and is published by Ansys (formerly AGI) of Exton, PA. The full record is on the AGI STK review, and the rest of the category is under best aviation tools.

AGI STK pricing on the vendor's own site

AGI STK pricing questions

How much does AGI STK cost?: AGI STK publishes 3 tiers, from Free for STK Free up to $50000/year for STK Enterprise. The entry tier costs nothing.
Does AGI STK have a free plan?: Yes. The STK Free tier costs nothing and covers basic analysis, 2d/3d visualization, orbit analysis. Paying starts at $15000/year for STK Professional.
What is the difference between STK Free and STK Professional on AGI STK?: STK Professional costs $15000/year against Free, and adds advanced analysis, premium modules, api access, commercial use.
Is the STK Enterprise plan on AGI STK worth it?: That depends entirely on whether you need what it adds, which on the published record is all modules, multi-user, custom solutions, premium support. It costs $50000/year against $15000/year for STK Professional. Softwr has not used either tier, so this page can tell you what changes, not whether it is worth the difference to you.
Which aviation tools can I use without paying?: 2 of the 8 aviation tools listed alongside AGI STK have a free tier: FltPlan Go, Flightradar24.
What am I actually paying for with AGI STK?: The record lists 20 features across 5 areas: other, integrations, security, collaboration, platform. In practice it is brought in for modelling satellite orbits, coverage and conjunction risk, mission analysis and visualization for air, space and defence systems.
Does AGI STK charge per user?: The record carries a price and a billing period for each of its 3 tiers, but not the unit that price is charged in. Per-seat and flat-rate billing look identical in this data, so check the vendor's page before budgeting for a team.
Are these AGI STK prices current?: They are what the catalogue entry holds, refreshed when the entry is. Vendors change pricing without notice and nobody at Softwr re-verifies each tier by hand, so treat this as a structured summary and the vendor's own pricing page as the authority.
What should I compare AGI STK against before paying?: The closest aviation tools in this directory are Flighty, Collins Aerospace Systems, FltPlan Go, IBS iCargo. Each has a side-by-side comparison with AGI STK covering price, platforms and features.