Education · head to head
MasterClass vs Sky Guide
Sky Guide
Education
iOS astronomy app that moved from a one-time purchase to a free-to-download, subscription-tiered model
- From
- Free
- Rated
- -
The short version
- Only Sky Guide 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; Sky Guide it is iOS-only, unlike SkySafari which also covers Android and desktop.
- They diverge on capability: MasterClass covers High-quality video, Sky Guide covers Light pollution forecasting.
- Prices and features above were last checked on 1 September 2026.
Where they differ
Only the attributes on which MasterClass and Sky Guide actually diverge.
| Attribute | MasterClass | Sky Guide |
|---|---|---|
| Starting price | On request | Free |
| Pricing model | subscription | Free download with Plus and Pro subscription upgrades |
| Free tier | No | Yes |
| Platforms | Web, iOS, Android | iOS |
| Founded | 2015 | Unknown |
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 Sky Guide
- Light pollution forecasting
- Meteor shower prediction
- Camera and gyroscope sky view
- Deep-sky object catalogue
- Extreme zoom
- Satellite tracking
What people use each for
The jobs each tool is most often brought in to do.
MasterClass
- Learning from expertsnot Sky Guide
- Inspirationnot Sky Guide
- Skill developmentnot Sky Guide
- Entertainmentnot Sky Guide
Sky Guide
- An iOS stargazer who wants light pollution forecasting to plan a dark-sky observing tripnot MasterClass
- Someone tracking meteor showers and wanting a forecast of viewing conditionsnot MasterClass
- A user who wants extreme zoom into deep-sky objects without owning a telescopenot MasterClass
- A buyer comparing subscription astronomy apps on iOS specifically, rather than cross-platform toolsnot 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
Sky Guide
- It is iOS-only, unlike SkySafari which also covers Android and desktop.
- It has moved from one-time purchase to a subscription model, and long-time users who paid once for earlier versions have criticised the change publicly.
- Pro tier pricing is high relative to Star Walk 2 for broadly similar core stargazing functionality.
- It has no telescope control, unlike SkySafari Plus and Pro, which limits it to naked-eye and camera-based observing.
- Its relationship to other apps under the same distribution platform is not clearly documented, which makes long-term support commitments harder to assess.
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
Sky Guide
Free- Sky GuideFree
- Base sky map and object labelling
- Sky Guide Plus$19.99/year
- Larger star and satellite catalogue
- Light pollution forecasting
- Meteor shower prediction
- Sky Guide Pro$39.99/year
- Very large deep-sky object catalogue
- Exoplanet data
- Extreme zoom
Which should you pick?
Choose MasterClass if
- You need high-quality video.
- You work on Web, iOS, Android.
- You also want workbooks.
Choose Sky Guide if
- You need light pollution forecasting.
- You want to start without paying.
- You work on iOS.
- You also want meteor shower prediction.
Questions people ask
- Is MasterClass or Sky Guide better?
- Neither clearly leads. MasterClass starts at On request and Sky Guide at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, MasterClass or Sky Guide?
- Sky Guide has a free tier; the other does not. Paid plans start at On request for MasterClass and Free for Sky Guide.
- Does MasterClass or Sky Guide run on more platforms?
- MasterClass runs on Web, iOS, Android. Sky Guide runs on iOS.
- Can I use Sky Guide for free?
- Yes. Sky Guide 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 Sky Guide is typically brought in for.
- What can MasterClass do that Sky Guide cannot?
- MasterClass covers High-quality video, Workbooks, Community, Mobile apps. Sky Guide covers Light pollution forecasting, Meteor shower prediction, Camera and gyroscope sky view, Deep-sky object catalogue.
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.
SourceSky Guide: Is Sky Guide free?
The base app is free to download; Plus and Pro are subscription upgrades for a larger catalogue and forecasting features.
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.
SourceSky Guide: Did Sky Guide used to be a one-time purchase?
Yes, earlier versions were sold as a one-time purchase before it moved to the current free-plus-subscription model.
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.
SourceSky Guide: Does Sky Guide support telescope control?
No. For telescope control, SkySafari Plus or Pro is the better choice.
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.
SourceRelated pages
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