Smart Telescope Planner vs StargazerLog

BigSky Planner helps smart telescope users prepare an observing night before they head outside. Save your observing sites, set up your smart telescope, filter a bundled target catalog, and build a timed plan for the night. Target cards show magnitude, object type, first view time, time in view, azimuth and altitude. Details adds capture guidance for your default telescope, with Min, Opt and Best integration times and filter-aware notes. Key features - Save and reuse observing sites, and mark a default - Smart telescope profiles with altitude, timing and Equatorial Mode limits for each model - Filter targets by catalog, magnitude, object type, altitude and azimuth, with exact catalog-number search - Planets, the Moon and comets - One target card per object, with its common name - Build Plan places every selected target across its Clear Sky, so the times overlap. Balance Plan and Use Priority set the time shares - An alert when a capture is shorter than 30 minutes, with a longer seat or a replacement to choose from - Weather from NOAA in the United States and MET Norway elsewhere, with no account or key. Open-Meteo works with your own key. - Save, reopen, print and share plans - Back up on iPhone or iPad and restore on a Mac or Windows PC, or the other way around - Text follows your iPhone or iPad text size - Light and dark appearance, an illustrated Help guide and a full PDF manual Free download with a 20-day free trial BigSky Planner is free to download and includes a free 20-day trial. After the trial, Full Access is a one-time in-app purchase: no subscription and no automatic charge. Your saved sites and plans are kept. If you bought the app before it became free, you keep Full Access with no additional purchase. Purchase questions: support@bigskyastro.com. Your data stays on your device. No account is required.

StargazerLog tells you what's happening in the sky above you tonight — real stars, real constellations, real math. Computed on your device from genuine astronomical catalogs, accurate anywhere on Earth. WHAT IT DOES • Tonight's constellations: which of the 88 constellations are up right now, which direction to face, and how high to look — built on a catalog of the brightest real stars (Sirius, Vega, Orion's Belt and more). • Constellation finder: tap any constellation for its star chart, brightest stars, and how to spot it. • Stargazing score: a 0–100 rating of tonight's sky conditions — moonlight, darkness windows — so you know if it's worth heading out. • Meteor showers & sky events: Perseids, Geminids and every major annual shower with real peak dates, plus full moons — see what's coming in the next 30 days. • Moon phase now: current phase, illumination, and moon age at a glance. • Planets tonight: which of Mercury, Venus, Mars, Jupiter and Saturn clear the horizon after dark — and where to look. • Nightly reminder: an optional "Tonight's Sky" notification with what's visible after dark. BUILT ON REAL DATA Star positions come from the Yale Bright Star Catalogue, constellations from the official IAU 88, meteor shower dates from the International Meteor Organization — all computed with deterministic astronomy on your device. No accounts, no guessing, no made-up data. SET YOUR LOCATION Pick a city or enter your exact latitude and longitude, and the whole sky is recomputed for where you actually are. STARGAZERLOG PLUS Core features are free. StargazerLog Plus unlocks every constellation tonight, search, and the 7-Day Sky Ahead — a week of nightly moon phases, the best planets to spot each night, and the darkest sky for stargazing. Available as an auto-renewing subscription, or pay once with the Lifetime unlock. Clearly priced, cancel anytime. Subscription: auto-renews unless canceled ≥24h before the period ends; payment charged to your Apple ID at confirmation; manage/cancel in App Store settings. Lifetime is a one-time purchase — no subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://stargazerlog.com/privacy