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Education · head to head

Star Walk 2 vs Udemy

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
Udemy logo

Udemy

Education

World's largest marketplace for online learning

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: 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.; Udemy course quality varies significantly as Udemy allows anyone to create and sell courses without vetting
  • They diverge on capability: Star Walk 2 covers Augmented reality sky view, Udemy covers Video courses.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

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

Attributes where Star Walk 2 and Udemy differ
AttributeStar Walk 2Udemy
Pricing modelFreemium, low-cost ad-free subscription upgradeUnknown
PlatformsiOS, Android, macOS, WindowsWeb, iOS, Android
FoundedUnknown2010

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 Star Walk 2

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

Only in Udemy

  • Video courses
  • Quizzes
  • Assignments
  • Certificates
  • Mobile learning
  • Offline viewing
  • Q&A
  • Reviews

What people use each for

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

Star Walk 2

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

Udemy

  • Skill buildingnot Star Walk 2
  • Career transitionnot Star Walk 2
  • Professional developmentnot Star Walk 2
  • Team trainingnot Star Walk 2

Where each one falls short

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

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.

Udemy

  • Course quality varies significantly as Udemy allows anyone to create and sell courses without vetting
  • No formal credentials or degrees offered, unlike Coursera and edX which offer institution-branded certificates
  • Courses are self-paced with no instructor interaction or support, making structured learning difficult for some students

Pricing, plan by plan

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

Udemy

Free
  • Personal$19/month
    • 11,000+ courses access
  • Team$360/year
    • For 5-20 people

Which should you pick?

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

Choose Udemy if

  • You need video courses.
  • You want to start without paying.
  • You work on Web, iOS, Android.
  • You also want quizzes.
Udemy review

Questions people ask

Is Star Walk 2 or Udemy better?
Neither clearly leads. Star Walk 2 starts at Free and Udemy at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Star Walk 2 or Udemy?
Star Walk 2 starts at Free and Udemy at Free.
Does Star Walk 2 or Udemy run on more platforms?
Star Walk 2 runs on iOS, Android, macOS, Windows. Udemy runs on Web, iOS, Android.
Can I use Star Walk 2 for free?
Both have a free tier, so you can try either at no cost before committing.
What is Star Walk 2 best used for?
Star Walk 2 is most often used for a parent wanting a cheap, simple app to show a child the night sky, a traveller who wants to identify stars and planets without a big subscription commitment, a casual stargazer who does not need telescope control or a deep-sky catalogue, someone wanting satellite pass tracking including the iss on a budget. Of those, a parent wanting a cheap, simple app to show a child the night sky and a traveller who wants to identify stars and planets without a big subscription commitment are not what Udemy is typically brought in for.
What can Star Walk 2 do that Udemy cannot?
Star Walk 2 covers Augmented reality sky view, Time travel mode, Satellite tracking, Night mode. Udemy covers Video courses, Quizzes, Assignments, Certificates.

Answered from the vendors’ own pages

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.

Udemy: Does Udemy offer team/business pricing?

Yes, Udemy's Team plan costs $360 per user annually for groups of 5 to 20 people, in addition to individual Personal plan at $19/month.

Source
Star Walk 2: Does it support telescope control?

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

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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