SkyQI vs AstroFinder

SkyQI turns your smartphone into a sky quality meter. Upload a photo of the night sky and our algorithm instantly analyzes it — detecting stars, measuring artificial light contamination, and calculating your sky's Bortle class and SQM value. FEATURES • Instant Analysis — Upload a night sky photo and get your Bortle scale (1-9) and SQM reading in seconds • Light Pollution Map — Explore an interactive map with NASA VIIRS satellite data overlay showing light pollution across India • Sky Conditions Forecast — Check cloud cover, seeing, and transparency before heading out to stargaze • Photo Gallery — Browse night sky photos from citizen scientists across the country • Learn — Read articles about light pollution, dark sky destinations, astrophotography tips, and more • Track Progress — View your measurement history and personal statistics WHO IS IT FOR? • Amateur astronomers planning observation sessions • Students and teachers doing citizen science projects • Anyone curious about the quality of their night sky • Environmental advocates tracking light pollution trends SkyQI is a citizen science project started by Suhani Gupta in Gurgaon. Every measurement you upload contributes to building India's most detailed light pollution database. Free to use. No account required to upload.

**AstroFinder turns your iPhone into a plate-solving push-to finder for any telescope — no motors, no alignment stars, no setting circles.** Clamp your phone beside the scope. AstroFinder takes a short exposure of the real sky, identifies the star pattern the way a research plate-solver does, and repeats about once a second — so you always know exactly where you're pointed. A red-on-black star chart shows your aim live, and a simple arrow guides you onto whatever you want to see. **Find anything** • Planets, Sun and Moon — sorted by what's up right now • Deep sky by catalog number — Messier, NGC, IC, and more, on a keyboard-free keypad • Named stars and showpiece double stars • "Best this month" — well-placed showpieces for your location, tonight, nearest to where you're already aimed **Built for the eyepiece** • Fully night-vision friendly: red on black, dimmable below the phone's own minimum • Alt-azimuth mode for Dobsonians (no field rotation) or equatorial mode for tracking mounts • Tap any object on the chart for details, then push-to it • Optional constellation lines, labels, and progressive zoom as you close in • Works in portrait or landscape, at any mounting angle **How it works** AstroFinder mounts alongside your telescope and syncs to your eyepiece in seconds. From then on, the chart and all guidance are aligned to your scope's actual aim. Everything runs on-device — no internet needed under the stars. A one-month free trial gives you a full new-moon cycle to try it. Subscription then renews yearly; cancel anytime. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.santangeli.net/astrofinder/privacy Clear skies.