Best Astronomy Apps in 2026
Updated
In short: NASA Eyes is ranked #1 of 34 as of 4 October 2026, ahead of Solar System Scope and Cosmic Watch. The best-ranked option with a free plan is Solar System Scope. The lowest first paid tier on this page is Cosmic Watch at $0.42/mo.
For identifying objects overhead or planning an observing session, astronomy apps vary in what they show and how they support exploration. Compare catalog size, AR sky view and learning content, along with mission tracking and offline access. Platform coverage can shape where you use an app, while telescope control may matter if you observe with equipment. Free-plan availability and paid-from pricing help clarify cost. NASA Eyes, Solar System Scope and Cosmic Watch offer options to weigh against your interests and setup.
34 astronomy apps ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
Is your tool on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which astronomy app is ranked first on Specifiction?
NASA Eyes is ranked #1 of 34 with a score of 7.7. Solar System Scope is second and Cosmic Watch third.
How many of these have a free plan?
6 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Cosmic Watch has the lowest first paid tier we found: $0.42/mo.
How is this list ranked?
Ranked on what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing. Paid placements never change a rank.