Plan, shoot and log your nights under dark skies
DarkSkyTools is the complete astrophotography companion — a live planetarium with AR, Milky Way planning, session logging, astro weather, equipment matching and much more.
Already have an Account?
No charge until your trial ends · Cancel anytime
See it in action
24 professional tools, one dark-sky companion — explore DarkSkyTools.
Every tool an astrophotographer needs
25 professional tools in one app — plan, shoot, log and analyse your nights under the stars.
SIMBAD Extended Search
Complete target searches across 15,000,000+ objects via the SIMBAD database (CDS Strasbourg) — stars, exoplanet hosts, quasars and faint galaxies — backed by a 40,000+ object local database (stars + deep-sky) for offline searching.
DarkSky Live Planetarium
A blazing-fast native sky map with 40,000+ stars, DSOs, planets, ISS, comets and a photographic Milky Way — plus full AR camera mode with star identification.
Milky Way Planner & Map
Plan galactic-core shots with rise/set times, season calendar, NPF exposure maths and an interactive Milky Way sky map.
Session Logging
Log every imaging session — target, exposures per filter, calibration frames, guiding RMS, weather, moon and gear.
Session Planning
Build complete multi-target imaging plans with weather, lunar and visibility forecasts, then convert them to sessions.
Analytics & Tasks
Integration-time charts, target breakdowns and a kanban task board to keep your projects moving.
Equipment Profiles
Telescopes, cameras, guide cams and eyepieces — with FOV matching against every target in the catalogue.
Astro Weather Forecast
Hour-by-hour cloud, seeing, transparency and dew-point forecasts for your exact imaging site — plus a Best Night Ahead card that ranks the next five nights so you know which evening to plan for.
3D Lunar Calendar
A full 8K interactive 3D Moon globe, phase calendar, rise/set times and libration details.
Light Pollution Map
World Bortle-scale heatmap with site readings — find truly dark skies near you.
Dark Site Library
Save and rate your dark-sky locations with sky-quality data and moonlight forecasts.
Tonight's Best
Auto-ranked list of the best targets for your sky, gear and conditions — tonight. Filter by magnitude, altitude, constellation, catalogue, or just your own wishlist.
Aurora Visibility
Live Kp index, aurora oval and visibility alerts for both hemispheres.
Twilight & Sun Times
Civil, nautical and astronomical twilight — know exactly when true dark begins.
Polar Finder & Compass
AR polar-alignment finder, sensor-fused compass and 3D inclinometer for perfect mount setup.
Exposure & NPF Calculators
NPF rule, 500 rule, sub-exposure and timelapse calculators built for astro work — with saved rig presets and seeing-matched sampling and binning advice.
ISS, Comets & Meteors
Track the ISS and major satellites live, plus comets, bright asteroids and meteor-shower radiants.
Target Search & Suggester
Search the full NGC/IC/Messier catalogue and get Equipment-matched targets for your field of view.
Night Events Calendar
Eclipses, conjunctions, oppositions and meteor showers — years ahead.
Sun & Planets 3D
A native 3D solar system with live planet positions, facts and imagery.
Gallery & Projects
A private on-device image gallery — connect a folder on your phone, import JPEG/PNG/TIFF images and tag them by target, type and session date. Plus projects with total integration per target.
Timelapse Calculator
Frames, interval, clip length and storage — planned in seconds.
Import Capture Logs
Import session data from ASIAIR, NINA, CSV and JSON logs straight into a new session.
Offline Mode
Download forecasts and data for remote dark sites with zero signal — anything you save offline queues on the device and uploads itself, with a live sync indicator so nothing is ever lost.
Share
Share Sessions, Plans and Images to your social media or other users.
9 Languages
English, Spanish, French, German, Italian, Japanese, Korean, Chinese and Hindi.
Already have an Account?
No charge until your trial ends · Cancel anytime
Simple pricing, serious tools
Start with a 7-day free trial — cancel anytime before it ends and pay nothing.
Monthly
$4.99/month
7-day free trial included
Yearly
$44.99/year
7-day free trial included
Create your free account first — then start your 7-day free trial at checkout.
Prices in USD. Recurring plans include a 7-day free trial; your card is only charged when the trial ends. Manage or cancel anytime from your account.