Softwr

Education · head to head

Busuu vs Star Walk 2

Busuu logo

Busuu

Education

Language learning app with a community correction feature, owned by Chegg since 2022

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: Busuu the free tier is limited enough that meaningful progress in most languages effectively requires the Premium subscription within a few weeks of 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.
  • They diverge on capability: Busuu covers Structured course units, 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 Busuu and Star Walk 2 actually diverge.

Attributes where Busuu and Star Walk 2 differ
AttributeBusuuStar Walk 2
Pricing modelFree with a Premium subscriptionFreemium, low-cost ad-free subscription upgrade
PlatformsiOS, Android, WebiOS, Android, macOS, Windows

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 Busuu

  • Structured course units
  • Community correction
  • Study plans and certification
  • Offline lessons
  • Grammar review units
  • Live tutoring credits

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.

Busuu

  • A self-directed adult learner who wants human correction on writing and speaking exercises rather than only algorithmic feedbacknot Star Walk 2
  • Someone working toward a specific proficiency level and wanting a structured study plan rather than a gamified drip of lessonsnot Star Walk 2
  • A learner who wants offline access for commuting or travel, which requires the Premium subscriptionnot Star Walk 2
  • A buyer comparing Busuu against Duolingo who values depth of grammar explanation over gamificationnot Star Walk 2

Star Walk 2

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

Where each one falls short

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

Busuu

  • The free tier is limited enough that meaningful progress in most languages effectively requires the Premium subscription within a few weeks of use.
  • Community correction quality depends on other users being active in your target language at the time you submit, so response speed and quality vary noticeably by language and time zone.
  • Since the 2022 Chegg acquisition, Busuu sits inside a company built around subscription homework and study services, and Chegg has faced its own commercial pressure from AI tools reducing demand for its core products, which is a relevant roadmap risk.
  • Course depth and language coverage are uneven; widely spoken languages such as Spanish and French have far more content than smaller language courses.
  • The official Busuu certificate is not a recognised external qualification equivalent to something like an IELTS or DELF exam, so it carries limited weight outside informal 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.

Pricing, plan by plan

Busuu

Free
  • Busuu Premium$13.99/month
    • Free tier gives limited vocabulary and grammar content per language, with ads
    • Premium unlocks full course content, offline lessons and grammar review units
    • Annual Premium plans typically run $69.99 to $99.99, cheaper per month than monthly billing

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 Busuu if

  • You need structured course units.
  • You want to start without paying.
  • You work on iOS, Android, Web.
  • You also want community correction.
Busuu 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 Busuu or Star Walk 2 better?
Neither clearly leads. Busuu 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, Busuu or Star Walk 2?
Busuu starts at Free and Star Walk 2 at Free.
Does Busuu or Star Walk 2 run on more platforms?
Busuu runs on iOS, Android, Web. Star Walk 2 runs on iOS, Android, macOS, Windows.
Can I use Busuu for free?
Both have a free tier, so you can try either at no cost before committing.
What is Busuu best used for?
Busuu is most often used for a self-directed adult learner who wants human correction on writing and speaking exercises rather than only algorithmic feedback, someone working toward a specific proficiency level and wanting a structured study plan rather than a gamified drip of lessons, a learner who wants offline access for commuting or travel, which requires the premium subscription, a buyer comparing busuu against duolingo who values depth of grammar explanation over gamification. Of those, a self-directed adult learner who wants human correction on writing and speaking exercises rather than only algorithmic feedback and someone working toward a specific proficiency level and wanting a structured study plan rather than a gamified drip of lessons are not what Star Walk 2 is typically brought in for.
What can Busuu do that Star Walk 2 cannot?
Busuu covers Structured course units, Community correction, Study plans and certification, Offline lessons. Star Walk 2 covers Augmented reality sky view, Time travel mode, Satellite tracking, Night mode.

Answered from the vendors’ own pages

Busuu: Is Busuu free?

A limited amount of vocabulary and grammar content per language is free with ads. Full course access, offline lessons and the certificate require Busuu Premium.

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.

Busuu: Who owns Busuu?

Chegg, the publicly traded US education technology company, acquired Busuu in 2022.

Star Walk 2: Does it support telescope control?

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

Busuu: What is the community correction feature?

Writing and speaking exercises are submitted to other Busuu users who are native speakers of your target language, who correct them for free as part of the community exchange.

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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