Education · head to head
eBird vs Sky Guide
eBird
Education
Free citizen-science checklist app from Cornell Lab of Ornithology for logging bird sightings
- From
- Free
- 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
- Each has a real cost: eBird it does not identify birds for you, so a beginner needs Merlin or field guide knowledge alongside it.; Sky Guide it is iOS-only, unlike SkySafari which also covers Android and desktop.
- They diverge on capability: eBird covers Checklist logging, 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 eBird and Sky Guide actually diverge.
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 eBird
- Checklist logging
- Hotspot exploration
- Life list tracking
- Rare bird alerts
- Regional review
- Data used in research
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.
eBird
- A birder who wants to keep a searchable life list across every location they have visitednot Sky Guide
- Someone wanting alerts when a rare species is reported nearbynot Sky Guide
- A researcher or land manager pulling public sighting data for a specific regionnot Sky Guide
- A group leading a birding outing who wants to log a shared checklist for the tripnot Sky Guide
Sky Guide
- An iOS stargazer who wants light pollution forecasting to plan a dark-sky observing tripnot eBird
- Someone tracking meteor showers and wanting a forecast of viewing conditionsnot eBird
- A user who wants extreme zoom into deep-sky objects without owning a telescopenot eBird
- A buyer comparing subscription astronomy apps on iOS specifically, rather than cross-platform toolsnot eBird
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
eBird
- It does not identify birds for you, so a beginner needs Merlin or field guide knowledge alongside it.
- Data quality depends on volunteer regional review, so unusual sightings can take time to verify or may be rejected.
- The interface is built for structured data entry rather than casual browsing, which some users find less inviting than a photo-first app.
- Hotspot and rare bird alert usefulness varies heavily by region, since it depends on local birder density submitting checklists.
- As a research tool first, some workflows such as trip list exports and taxonomy changes prioritise data accuracy over ease of use.
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
eBird
Free- eBirdFree
- Unlimited checklist logging
- Hotspot and rare bird alerts
- Web and mobile access
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 eBird if
- You need checklist logging.
- You want to start without paying.
- You work on iOS, Android, Web.
- You also want hotspot exploration.
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 eBird or Sky Guide better?
- Neither clearly leads. eBird starts at Free and Sky Guide at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, eBird or Sky Guide?
- eBird starts at Free and Sky Guide at Free.
- Does eBird or Sky Guide run on more platforms?
- eBird runs on iOS, Android, Web. Sky Guide runs on iOS.
- Can I use eBird for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is eBird best used for?
- eBird is most often used for a birder who wants to keep a searchable life list across every location they have visited, someone wanting alerts when a rare species is reported nearby, a researcher or land manager pulling public sighting data for a specific region, a group leading a birding outing who wants to log a shared checklist for the trip. Of those, a birder who wants to keep a searchable life list across every location they have visited and someone wanting alerts when a rare species is reported nearby are not what Sky Guide is typically brought in for.
- What can eBird do that Sky Guide cannot?
- eBird covers Checklist logging, Hotspot exploration, Life list tracking, Rare bird alerts. Sky Guide covers Light pollution forecasting, Meteor shower prediction, Camera and gyroscope sky view, Deep-sky object catalogue.
Answered from the vendors’ own pages
eBird: Is eBird free?
Yes, entirely, with no ads or paid tier, funded by the Cornell Lab of Ornithology.
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.
eBird: Does eBird identify birds?
No, it records checklists of species you already believe you saw; Merlin Bird ID handles identification.
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.
eBird: Who uses the data?
Researchers, conservation organisations and government agencies use eBird data to study migration and population trends.
Sky Guide: Does Sky Guide support telescope control?
No. For telescope control, SkySafari Plus or Pro is the better choice.
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