Education · head to head
Blackboard vs Sky Guide
Blackboard
Education
Comprehensive learning platform for educational institutions
- From
- $10/year
- Rated
- -
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- Each has a real cost: Blackboard user interface is outdated, cluttered, and unintuitive with hidden menus and excessive clicks; Sky Guide it is iOS-only, unlike SkySafari which also covers Android and desktop.
- They diverge on capability: Blackboard covers Course management, 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 Blackboard and Sky Guide actually diverge.
| Attribute | Blackboard | Sky Guide |
|---|---|---|
| Starting price | $10/year | Free |
| Pricing model | Unknown | Free download with Plus and Pro subscription upgrades |
| Free tier | No | Yes |
| Platforms | Web | iOS |
| Founded | 1997 | 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 Blackboard
- Course management
- Assessment tools
- Discussion boards
- Virtual classroom
- Gradebook
- Mobile app
- Analytics
- Accessibility
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.
Blackboard
- Course deliverynot Sky Guide
- Student engagementnot Sky Guide
- Assessmentnot Sky Guide
- Virtual learningnot Sky Guide
Sky Guide
- An iOS stargazer who wants light pollution forecasting to plan a dark-sky observing tripnot Blackboard
- Someone tracking meteor showers and wanting a forecast of viewing conditionsnot Blackboard
- A user who wants extreme zoom into deep-sky objects without owning a telescopenot Blackboard
- A buyer comparing subscription astronomy apps on iOS specifically, rather than cross-platform toolsnot Blackboard
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Blackboard
- User interface is outdated, cluttered, and unintuitive with hidden menus and excessive clicks
- Slow response times and platform crashes when opening multiple tabs simultaneously
- Cannot track detailed student activity beyond most recent login information
- Limited ability to handle large file uploads for content and assignments
- Minimal customization options for page and template design
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
Blackboard
$10/yearNo published plan breakdown. See the Blackboard review.
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 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 Blackboard or Sky Guide better?
- Neither clearly leads. Blackboard starts at $10/year and Sky Guide at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Blackboard or Sky Guide?
- Sky Guide has a free tier; the other does not. Paid plans start at $10/year for Blackboard and Free for Sky Guide.
- Does Blackboard or Sky Guide run on more platforms?
- Blackboard runs on Web. 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. Blackboard starts at $10/year.
- What is Blackboard best used for?
- Blackboard is most often used for course delivery, student engagement, assessment, virtual learning. Of those, course delivery and student engagement are not what Sky Guide is typically brought in for.
- What can Blackboard do that Sky Guide cannot?
- Blackboard covers Course management, Assessment tools, Discussion boards, Virtual classroom. Sky Guide covers Light pollution forecasting, Meteor shower prediction, Camera and gyroscope sky view, Deep-sky object catalogue.
Answered from the vendors’ own pages
Blackboard: What does Blackboard LMS offer?
Blackboard is a learning management system that includes course management, assignment and gradebook tools, discussion forums, and analytics for tracking learner progress in online, hybrid, and in-person courses.
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.
Sky 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.
Sky Guide: Does Sky Guide support telescope control?
No. For telescope control, SkySafari Plus or Pro is the better choice.
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