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Education · head to head

Khan Academy vs Star Walk 2

Khan Academy logo

Khan Academy

Education

Free world-class education for anyone, anywhere

From
Free
Rated
-
Full reviewWebsite
Star Walk 2 logo

Star Walk 2

Education

Freemium stargazing app with a low-cost ad-free upgrade, aimed at casual sky watchers

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Khan Academy the Internet Archive's capture of Khan Academy's homepage on 1 January 2021 stated it is a 501(c)(3) nonprofit and that its full library of practice and lessons 'is all free for learners and teachers', funded by donations rather than subscriptions.; Star Walk 2 its object catalogue is far smaller than SkySafari Pro, so it has little to offer once someone wants to go beyond naked-eye stargazing.
  • They diverge on capability: Khan Academy covers Video lessons, Star Walk 2 covers Augmented reality sky view.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Khan Academy and Star Walk 2 actually diverge.

Attributes where Khan Academy and Star Walk 2 differ
AttributeKhan AcademyStar Walk 2
Pricing modelfreeFreemium, low-cost ad-free subscription upgrade
PlatformsWeb, IOS, AndroidiOS, Android, macOS, Windows
Founded2008Unknown

Identical on both: starting price (Free), free tier (Yes), 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 Khan Academy

  • Video lessons
  • Practice exercises
  • Mastery system
  • Progress tracking
  • Personalized learning
  • Teacher tools
  • Parent dashboard
  • Test prep

Only in Star Walk 2

  • Augmented reality sky view
  • Time travel mode
  • Satellite tracking
  • Night mode
  • Meteor shower and event alerts
  • Ad-free Plus tier

What people use each for

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

Khan Academy

  • Free self paced learning across maths, science and humanitiesnot Star Walk 2
  • Assigning practice and tracking student progress in a classroomnot Star Walk 2

Star Walk 2

  • A parent wanting a cheap, simple app to show a child the night skynot Khan Academy
  • A traveller who wants to identify stars and planets without a big subscription commitmentnot Khan Academy
  • A casual stargazer who does not need telescope control or a deep-sky cataloguenot Khan Academy
  • Someone wanting satellite pass tracking including the ISS on a budgetnot Khan Academy

Where each one falls short

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

Khan Academy

  • The Internet Archive's capture of Khan Academy's homepage on 1 January 2021 stated it is a 501(c)(3) nonprofit and that its full library of practice and lessons 'is all free for learners and teachers', funded by donations rather than subscriptions.

Star Walk 2

  • Its object catalogue is far smaller than SkySafari Pro, so it has little to offer once someone wants to go beyond naked-eye stargazing.
  • It has no telescope control, unlike SkySafari Plus and Pro, so it cannot drive a motorised mount.
  • The free tier carries ads, which some users find intrusive during a stargazing session.
  • It shares a visual style with many similar AR sky map apps, so its differentiation beyond price is limited.
  • Content depth for deep-sky objects and satellite catalogues lags noticeably behind Sky Guide Pro and SkySafari Pro.

Pricing, plan by plan

Khan Academy

Free
  • FreeFree
    • Video lessons
    • Practice exercises
    • Progress tracking

Star Walk 2

Free
  • Star Walk 2Free
    • Core sky map and AR view
    • Ad-supported
  • Star Walk 2 Plus$5.99/year
    • Ads removed
    • Additional sky content

Which should you pick?

Choose Khan Academy if

  • You need video lessons.
  • You want to start without paying.
  • You work on Web, IOS, Android.
  • You also want practice exercises.
Khan Academy review

Choose Star Walk 2 if

  • You need augmented reality sky view.
  • You want to start without paying.
  • You work on iOS, Android, macOS, Windows.
  • You also want time travel mode.
Star Walk 2 review

Questions people ask

Is Khan Academy or Star Walk 2 better?
Neither clearly leads. Khan Academy starts at Free and Star Walk 2 at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Khan Academy or Star Walk 2?
Khan Academy starts at Free and Star Walk 2 at Free.
Does Khan Academy or Star Walk 2 run on more platforms?
Khan Academy runs on Web, IOS, Android. Star Walk 2 runs on iOS, Android, macOS, Windows.
Can I use Khan Academy for free?
Both have a free tier, so you can try either at no cost before committing.
What is Khan Academy best used for?
Khan Academy is most often used for free self paced learning across maths, science and humanities, assigning practice and tracking student progress in a classroom. Of those, free self paced learning across maths, science and humanities and assigning practice and tracking student progress in a classroom are not what Star Walk 2 is typically brought in for.
What can Khan Academy do that Star Walk 2 cannot?
Khan Academy covers Video lessons, Practice exercises, Mastery system, Progress tracking. Star Walk 2 covers Augmented reality sky view, Time travel mode, Satellite tracking, Night mode.

Answered from the vendors’ own pages

Khan Academy: Is Khan Academy free?

Yes. Khan Academy is a 501(c)(3) nonprofit and states that it is a free tool for students, teachers and parents alike, with over 840 free courses and teacher tools provided at no cost. It relies on donor support rather than fees.

Source
Star Walk 2: Is Star Walk 2 free?

A free ad-supported version exists; Star Walk 2 Plus removes ads and adds content for a low annual or monthly fee.

Khan Academy: Who is Khan Academy for?

Khan Academy serves students, teachers and parents, covering core academic subjects from K-12 through early college. The platform is available in more than 190 countries and over 55 languages.

Source
Star Walk 2: Does it support telescope control?

No. For telescope control, SkySafari Plus or Pro is the better choice.

Khan Academy: How is Khan Academy funded if it is free?

As a 501(c)(3) nonprofit, Khan Academy is funded by donations rather than subscriptions. Its about page states that donor support is what keeps the classroom tools free.

Source
Star Walk 2: How does it compare to SkySafari on price?

It is substantially cheaper, but with a much smaller star and deep-sky object catalogue.

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