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Education · head to head

Busuu vs SkySafari

Busuu logo

Busuu

Education

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

From
Free
Rated
-
Full reviewWebsite
SkySafari logo

SkySafari

Education

Astronomy app sold in three tiered editions, from a cheap star chart to telescope control

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Busuu has a free tier, so it costs nothing to try first.
  • 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.; SkySafari the three tiers are separate purchases, so upgrading from Basic to Plus or Pro later means buying again rather than paying the price difference.
  • They diverge on capability: Busuu covers Structured course units, SkySafari covers Tiered editions.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Busuu and SkySafari actually diverge.

Attributes where Busuu and SkySafari differ
AttributeBusuuSkySafari
Starting priceFreeOn request
Pricing modelFree with a Premium subscriptionOne-time purchase per tier
Free tierYesNo
PlatformsiOS, Android, WebiOS, Android, macOS

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 Busuu

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

Only in SkySafari

  • Tiered editions
  • Telescope control
  • Large object catalogue
  • Event finder
  • Observing log
  • Time control

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 SkySafari
  • Someone working toward a specific proficiency level and wanting a structured study plan rather than a gamified drip of lessonsnot SkySafari
  • A learner who wants offline access for commuting or travel, which requires the Premium subscriptionnot SkySafari
  • A buyer comparing Busuu against Duolingo who values depth of grammar explanation over gamificationnot SkySafari

SkySafari

  • An amateur astronomer with a motorised telescope mount who needs live control from a phone or tabletnot Busuu
  • A serious hobbyist who wants a deep-sky catalogue far larger than a casual sky map app providesnot Busuu
  • Someone planning an observing session who wants an event finder for conjunctions and eclipsesnot Busuu
  • A buyer choosing Basic first as a cheap star chart with no intention of telescope controlnot 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.

SkySafari

  • The three tiers are separate purchases, so upgrading from Basic to Plus or Pro later means buying again rather than paying the price difference.
  • Even the Basic tier costs more than a comparable free or freemium app like Star Walk 2 for a casual user.
  • Telescope control only works with compatible motorised mounts, so it is useless to someone with a manual telescope or no telescope at all.
  • Pricing fluctuates with frequent promotional sales, so the list price is not a reliable guide to what most buyers actually pay.
  • The interface, particularly on the Pro tier, has a steeper learning curve than a simple AR sky map app aimed at casual users.

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

SkySafari

On request
  • SkySafari Basic$4.99/one-time
    • Core star chart
    • Modest object catalogue
    • No telescope control
  • SkySafari Plus$14.99/one-time
    • About 2.5 million stars and 32,000 deep-sky objects
    • Telescope control
    • Event finder and observing log
  • SkySafari Pro$29.99/one-time
    • Largest catalogue tier
    • Telescope control
    • Advanced observation planning tools

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 SkySafari if

  • You need tiered editions.
  • You work on iOS, Android, macOS.
  • You also want telescope control.
SkySafari review

Questions people ask

Is Busuu or SkySafari better?
Neither clearly leads. Busuu starts at Free and SkySafari at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Busuu or SkySafari?
Busuu has a free tier; the other does not. Paid plans start at Free for Busuu and On request for SkySafari.
Does Busuu or SkySafari run on more platforms?
Busuu runs on iOS, Android, Web. SkySafari runs on iOS, Android, macOS.
Can I use Busuu for free?
Yes. Busuu has a free tier, so you can try it without paying. SkySafari starts at On request.
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 SkySafari is typically brought in for.
What can Busuu do that SkySafari cannot?
Busuu covers Structured course units, Community correction, Study plans and certification, Offline lessons. SkySafari covers Tiered editions, Telescope control, Large object catalogue, Event finder.

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.

SkySafari: What is the difference between Basic, Plus and Pro?

Basic is a simple star chart, Plus adds a much larger catalogue and telescope control, and Pro adds an even larger catalogue and advanced planning tools.

Busuu: Who owns Busuu?

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

SkySafari: Can I upgrade from Basic to Plus later?

Not as a discounted upgrade; each tier is sold as a separate one-time purchase.

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.

SkySafari: Does it work with any telescope?

Only telescopes with compatible motorised mounts and a supported connection method can be controlled from the app.

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