Education · head to head
Labster 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: Labster customization is limited and labs cannot be easily adapted to specific course learning outcomes; Sky Guide it is iOS-only, unlike SkySafari which also covers Android and desktop.
- They diverge on capability: Labster covers Virtual simulations, 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 Labster and Sky Guide actually diverge.
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 Labster
- Virtual simulations
- 3D environments
- Theory pages
- Quizzes
- Lab reports
- Progress tracking
- Mobile access
- Multiplayer
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.
Labster
- Virtual labsnot Sky Guide
- Pre-lab preparationnot Sky Guide
- Supplemental learningnot Sky Guide
- Remote educationnot Sky Guide
Sky Guide
- An iOS stargazer who wants light pollution forecasting to plan a dark-sky observing tripnot Labster
- Someone tracking meteor showers and wanting a forecast of viewing conditionsnot Labster
- A user who wants extreme zoom into deep-sky objects without owning a telescopenot Labster
- A buyer comparing subscription astronomy apps on iOS specifically, rather than cross-platform toolsnot Labster
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Labster
- Customization is limited and labs cannot be easily adapted to specific course learning outcomes
- Simulations can lag or freeze depending on operating system and connection speed
- Cannot fully replace hands-on physical lab experience and data collection
- Students report preference for tactile physical lab experience over virtual simulations
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
Labster
On request- Student Access$49/month
- Course simulations
- Mobile access
- Progress tracking
- Institution$undefined/month
- All simulations
- LMS integration
- Analytics
- Enterprise$undefined/month
- Custom content
- API access
- Priority support
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 Labster or Sky Guide better?
- Neither clearly leads. Labster 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, Labster or Sky Guide?
- Sky Guide has a free tier; the other does not. Paid plans start at On request for Labster and Free for Sky Guide.
- Does Labster or Sky Guide run on more platforms?
- Labster 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. Labster starts at On request.
- What is Labster best used for?
- Labster is most often used for virtual labs, pre-lab preparation, supplemental learning, remote education. Of those, virtual labs and pre-lab preparation are not what Sky Guide is typically brought in for.
- What can Labster do that Sky Guide cannot?
- Labster covers Virtual simulations, 3D environments, Theory pages, Quizzes. Sky Guide covers Light pollution forecasting, Meteor shower prediction, Camera and gyroscope sky view, Deep-sky object catalogue.
Answered from the vendors’ own pages
Labster: What STEM subjects does Labster cover?
Labster provides interactive 3D simulations across biology, chemistry, physics, and other STEM subjects, designed for university, college, and high school students.
Sky 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.
Labster: How many students has Labster served?
Labster has served over 6 million students and thousands of institutions globally with its virtual lab simulations.
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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