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Education · head to head

MasterClass vs Stellarium

MasterClass logo

MasterClass

Education

Learn from the world's best

From
On request
Rated
-
Full reviewWebsite
Stellarium logo

Stellarium

Education

Free open source desktop planetarium software, distinct from the paid Stellarium Mobile Plus app

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Stellarium has a free tier, so it costs nothing to try first.
  • Each has a real cost: MasterClass annual membership required with no option to purchase individual courses; Stellarium it is desktop-only software, so it has no native touch-optimised phone interface; the similarly named mobile app is a different paid product from a different company.
  • They diverge on capability: MasterClass covers High-quality video, Stellarium covers Photorealistic sky rendering.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which MasterClass and Stellarium actually diverge.

Attributes where MasterClass and Stellarium differ
AttributeMasterClassStellarium
Starting priceOn requestFree
Pricing modelsubscriptionOpen source, no licence fee
Free tierNoYes
PlatformsWeb, iOS, AndroidWindows, macOS, Linux
Founded2015Unknown

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

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 MasterClass

  • High-quality video
  • Workbooks
  • Community
  • Mobile apps
  • Offline viewing
  • Smart TV apps
  • Session stories
  • Smart TV platforms

Only in Stellarium

  • Photorealistic sky rendering
  • Large object catalogue
  • Telescope control
  • Scripting engine
  • Free and open source
  • Plugin ecosystem

What people use each for

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

MasterClass

  • Learning from expertsnot Stellarium
  • Inspirationnot Stellarium
  • Skill developmentnot Stellarium
  • Entertainmentnot Stellarium

Stellarium

  • A student or educator wanting a serious, scriptable planetarium tool without a budget line itemnot MasterClass
  • An amateur astronomer wanting telescope control from desktop software they can inspect and modifynot MasterClass
  • Someone running a planetarium display or public astronomy event on a scripted shownot MasterClass
  • A hobbyist who wants a large object catalogue without paying a subscription, and does not need a phone appnot MasterClass

Where each one falls short

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

MasterClass

  • Annual membership required with no option to purchase individual courses
  • No instructor interaction or personalized feedback on student work
  • No hands-on exercises, assignments, or peer discussion with other students
  • Limited interactivity with focus on entertainment value over practical skill development
  • Difficult to cancel subscription according to customer reviews

Stellarium

  • It is desktop-only software, so it has no native touch-optimised phone interface; the similarly named mobile app is a different paid product from a different company.
  • As a volunteer-maintained open source project, support is community-based rather than a guaranteed commercial help desk.
  • The interface, while capable, is less immediately intuitive for a first-time user than a polished commercial phone app.
  • Telescope control and some advanced plugins require additional setup that a non-technical user may find fiddly.
  • Because it shares a name with the unrelated paid Stellarium Mobile Plus app, buyers researching pricing online can easily conflate the two products.

Pricing, plan by plan

MasterClass

On request
  • Individual$10/month
    • All classes
    • One device
    • Mobile access
  • Duo$15/month
    • All classes
    • Two devices
    • Offline viewing
  • Family$20/month
    • All classes
    • Six devices
    • All features

Stellarium

Free
  • Stellarium DesktopFree
    • Full software, GPL licensed
    • No account, ads or subscription
    • Community-developed plugins

Which should you pick?

Choose MasterClass if

  • You need high-quality video.
  • You work on Web, iOS, Android.
  • You also want workbooks.
MasterClass review

Choose Stellarium if

  • You need photorealistic sky rendering.
  • You want to start without paying.
  • You work on Windows, macOS, Linux.
  • You also want large object catalogue.
Stellarium review

Questions people ask

Is MasterClass or Stellarium better?
Neither clearly leads. MasterClass starts at On request and Stellarium at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, MasterClass or Stellarium?
Stellarium has a free tier; the other does not. Paid plans start at On request for MasterClass and Free for Stellarium.
Does MasterClass or Stellarium run on more platforms?
MasterClass runs on Web, iOS, Android. Stellarium runs on Windows, macOS, Linux.
Can I use Stellarium for free?
Yes. Stellarium has a free tier, so you can try it without paying. MasterClass starts at On request.
What is MasterClass best used for?
MasterClass is most often used for learning from experts, inspiration, skill development, entertainment. Of those, learning from experts and inspiration are not what Stellarium is typically brought in for.
What can MasterClass do that Stellarium cannot?
MasterClass covers High-quality video, Workbooks, Community, Mobile apps. Stellarium covers Photorealistic sky rendering, Large object catalogue, Telescope control, Scripting engine.

Answered from the vendors’ own pages

MasterClass: What is the pricing structure for MasterClass?

MasterClass requires an annual membership with no single-course purchase option. Standard plan costs $10/month, Plus is $15/month with offline access, and Premium is $20/month for up to 6 devices.

Source
Stellarium: Is Stellarium really free?

The desktop software is free and open source under the GPL licence. The separate mobile app, Stellarium Mobile Plus, is a different paid product.

MasterClass: How many courses are available on MasterClass?

MasterClass has over 200 video classes taught by celebrities and experts, with each course containing approximately 20 videos of about 10 minutes each plus detailed workbooks.

Source
Stellarium: Is the mobile app made by the same team?

No. Stellarium Mobile Plus is built by Noctua Software, a different company, and is sold on subscription.

MasterClass: Does MasterClass provide certificates or formal credentials?

No. MasterClass does not provide certificates upon completing a course, so it does not offer formal recognition for course completion.

Source
Stellarium: What platforms does the free version run on?

Windows, macOS and Linux desktop.

MasterClass: Do MasterClass courses include personalized feedback from instructors?

No. All MasterClass courses are pre-recorded videos, so there is no direct interaction with instructors or personalized feedback on student work.

Source
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