Features Pricing FAQ Support Download on iOS
Now on the App Store

Log the
night sky.

Every observation, dated and tagged. Every scope and eyepiece, tracked and valued. Every verified object, points on the board. AstroCaddy is the iPhone logbook for amateur astronomers.

Get notified when the Android version lands

Download on iOS Learn more
What it does

Built for the way you already observe.

If you keep a notebook by your eyepiece, this is for you. If you don't yet, this is also for you.

01 / Sky Log

Every night, written down.

Log each observation with the gear you used, the conditions, an optional location, and photos. Submit a confirmation photo and verified objects earn points. Search it all later by object, date, or equipment.

M42
VERIFIED
M31
VERIFIED
M13
PENDING
02 / Equipment Vault

Know what your kit is worth.

Track every scope, eyepiece, mount, and camera with its condition and the nights you used it. Pro adds an AI valuation that estimates the market value of your whole setup.

$3,247
8″ SCT
12mm
EQ-6
ZWO
03 / Leaderboard

Climb, night after night.

Every verified observation earns points scaled to difficulty. See how your logbook stacks up against observers worldwide and watch your rank rise.

#1
4,820
#2
3,615
#3
2,940

AstroCaddy Pro

Free covers the essentials. Pro removes the limits and unlocks the AI equipment valuation.

Monthly
$4.99/mo
Yearly · Save 33%
$39.99/yr
Lifetime
$79.99

Free

  • Log observations
  • Track equipment in vault
  • Points, streaks & achievements
  • Community leaderboards
Questions

Frequently asked.

Things people ask before they download.

Is it available now?
Yes — AstroCaddy is live on the App Store. Tap "Download on iOS" above to grab it on your iPhone.
Is there an Android version?
Not yet. The iOS app is out now; Android is on the roadmap for later in 2026. Drop your email above and we'll let you know the day it ships.
Do I need a telescope to use it?
No. Naked-eye and binocular observations count just as much. Some of the best leaderboard entries come from a backyard and a pair of 10×50s.
How is this different from Stellarium or Star Walk?
Those are sky maps — they show you what's up tonight. AstroCaddy is what you fill in afterward: which objects you actually observed, what gear you used, and where that puts you on the leaderboard.
Will my data be sold or used for ads?
No ads, no analytics SDKs, no trackers, no third-party data sharing. Your logs and equipment are yours. The full breakdown is in the privacy policy.
What happens if I delete my account?
Everything is erased — observations, vault, photos, and your leaderboard standing. No retained backup. The button is in Settings.

Start your logbook tonight.

Free to download. No account required to look around.

Download on iOS