Best Astronomy Apps in 2026
Updated
In short: Solar System Scope is ranked #1 of 34 as of 4 October 2026, ahead of Cosmic Watch and NASA Eyes. The best-ranked option with a free plan is Cosmic Watch. The lowest first paid tier on this page is Cosmic Watch at $0.42/mo.
Whether you are learning about celestial objects or planning a telescope session, astronomy apps vary in the tools they offer for exploring the sky. Compared on catalog size, AR sky view, learning content, and offline access, the entries let you weigh discovery features against how you observe. Solar System Scope, Cosmic Watch, and NASA Eyes are among the named options. Mission tracking and telescope control may be relevant to particular interests or equipment, while platform coverage affects access. Check free-plan availability and paid-from details as you compare the features that matter to you.
34 astronomy apps ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
Astronomy Apps, ranked on how quickly a newcomer can get going. 8 of the 25 on this page can be tried for free.
- 1 Solar System ScopeFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 2 Cosmic WatchPaid from $0.42/mo
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 3 NASA EyesFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 4 Night SkyFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 5 Star ChartFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 6 Luminos ProPaid from $3/mo
- Free to practise on: not on record
- Free trial: yes
- Well documented: yes
- Runs where you work: not on record
- 7 SkySafari
- Free to practise on: not on record
- Free trial: yes
- Well documented: yes
- Runs where you work: yes
- 8 Seestar App
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
- 9 UNISTELLAR App
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
- 10 Star Chart
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: yes
- 11 DWARFLAB AppFree plan
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 12 Gaia Sky
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: yes
- 13 Heavens-Above
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: yes
- 14 KStars
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: yes
- 15 Sky Guide
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 16 SkyORB
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: yes
- 17 SkyPortal
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 18 Star Walk 2
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 19 Stellarium
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: yes
- 20 Aladin Desktop
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: yes
- 21 Singularity
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 22 Spot the Station
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 23 Starmap
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 24 WorldWide Telescope
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
- 25 ISS Detector
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: yes
Is your platform 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 The Geeks Club?
Solar System Scope is ranked #1 of 34 with a score of 7.5. Cosmic Watch is second and NASA Eyes 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 how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on. Paid placements never change a rank.