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Aviation · head to head

AGI STK vs CloudAhoy

AGI STK logo

AGI STK

Aviation

Systems Tool Kit for space and aerospace analysis

From
Free
Rated
-
Full reviewWebsite
CloudAhoy logo

CloudAhoy

Aviation

Flight tracking and analysis platform for general aviation

From
Free
Rated
-
Full reviewWebsite

The short version

  • 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; CloudAhoy pricing is not published; the Pro tier is named but not costed
  • They diverge on capability: AGI STK covers Orbit analysis, CloudAhoy covers Flight tracking.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which AGI STK and CloudAhoy actually diverge.

Attributes where AGI STK and CloudAhoy differ
AttributeAGI STKCloudAhoy
PlatformsWindows, LinuxWeb, Ios, Android
Founded19892012

Identical on both: starting price (Free), pricing model (subscription), free tier (Yes), user rating (Not yet rated), category (Aviation).

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 CloudAhoy

  • Flight tracking
  • Flight replay
  • Performance analysis
  • Training reports
  • Data visualization
  • GPS devices
  • Aviation databases
  • Weather data

Both cover

  • Data encryption

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 CloudAhoy
  • Mission analysis and visualization for air, space and defence systemsnot CloudAhoy

CloudAhoy

  • Post-flight debrief for flight students and instructorsnot AGI STK
  • Reviewing stabilised approaches after the factnot AGI STK
  • Checking IFR accuracy against the flown tracknot AGI STK
  • Sharing a flight track with another pilotnot AGI STK
  • Debriefing fixed-wing, rotorcraft and glider flightsnot 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

CloudAhoy

  • Pricing is not published; the Pro tier is named but not costed
  • Stability Score and Maneuver Score are Pro features
  • A post-flight debrief tool, so it analyses data recorded elsewhere rather than being an in-cockpit aid

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

CloudAhoy

Free
  • FreeFree
    • Basic flight tracking
    • Flight replay
    • Limited storage
  • Pro$5.99/month
    • Advanced analysis
    • Performance metrics
    • Unlimited storage

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 CloudAhoy if

  • You need flight tracking.
  • You want to start without paying.
  • You work on Web, Ios, Android.
  • You also want flight replay.
CloudAhoy review

Questions people ask

Is AGI STK or CloudAhoy better?
Neither clearly leads. AGI STK starts at Free and CloudAhoy at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, AGI STK or CloudAhoy?
AGI STK starts at Free and CloudAhoy at Free.
Does AGI STK or CloudAhoy run on more platforms?
AGI STK runs on Windows, Linux. CloudAhoy runs on Web, Ios, Android.
Can I use AGI STK for free?
Both have a free tier, so you can try either at no cost before committing.
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 CloudAhoy is typically brought in for.
What can AGI STK do that CloudAhoy cannot?
AGI STK covers Orbit analysis, 4D visualization, Mission planning, Communication analysis. CloudAhoy covers Flight tracking, Flight replay, Performance analysis, Training reports. Both handle Data encryption.

Answered from the vendors’ own pages

CloudAhoy: How much does CloudAhoy cost?

CloudAhoy does not publish pricing information on its website. Contact the company at [email protected] for pricing details and subscription options.

Source
CloudAhoy: What is CloudAhoy's pricing model?

The pricing model is not disclosed on the website. CloudAhoy directs all pricing inquiries to their support email address.

Source
CloudAhoy: Is there a free tier or trial?

No information about free tiers or trials is provided on the CloudAhoy website.

Source
CloudAhoy: How do I contact CloudAhoy for pricing?

Email CloudAhoy at [email protected] to inquire about pricing, plans, and features.

Source
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