AstroTool vs World Clock & Time Widgets
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
AstroTool
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AstroTool β Astrophotography Planner & Sky Map Plan better. Shoot more. Miss nothing. AstroTool is the complete astrophotography companion for iPhone β from scouting tonight's targets to logging every capture. A live sky map you can actually use in the field, planning tools built around how astrophotographers think, and a session logger that keeps your imaging history in one place. FREE FEATURES Sky Map A fully rendered live sky chart with 100+ bright stars, all 110 Messier objects, the Sun, Moon, and all planets. Constellation lines, constellation name labels, the Milky Way band, and the ecliptic arc are all drawn in real time. Tap any object for instant identification β name, type, magnitude, and position. Procedural rolling-hill horizon with compass ticks and cardinal labels. Motion-driven so the sky moves as you move. Deep Sky Catalog Browse the complete Messier catalog with search, type filters, and sort by ID, magnitude, or altitude. Every object shows rise, transit, and set times for your location, a visibility chart for tonight, and your full capture history for that target. Mark favorites and pick up right where you left off. PREMIUM β ONE-TIME UNLOCK Planner Everything you need before you head out. Moon phase and illumination with an imaging impact rating. Full twilight schedule β civil, nautical, and astronomical dusk and dawn with total dark-sky hours. All visible planets with live altitude and transit times. Jupiter's Galilean moons in a live canvas diagram. Best targets tonight ranked by a composite altitude and moon-separation score. Target schedule to plan your imaging windows object by object. Astrophotography Calculator Field of view for your exact sensor and focal length with sensor presets for Full Frame, APS-C, Micro 4/3, and custom. Unguided exposure limits via the 500, 400, and 300 rules for fixed tripod, tracking mount, and guided setups. Integration time calculator with sub count and a signal quality indicator. Session Logger Log every observing session with sky conditions β Bortle scale, seeing, and transparency. Add individual captures with exposure length, sub count, gain, filter, equipment, reference path, and a star rating. Total integration time tracked automatically. Export any session as formatted text to share or archive. Full equipment manager for telescopes and cameras with sensor specs, focal length, and reducer support. Target Schedule Build a nightly imaging plan by scheduling capture windows for specific catalog objects. Log past captures directly from the schedule. Mark targets done as you work through the night. Events & Alerts Upcoming meteor showers with ZHR and peak dates, lunar phases, planet oppositions and conjunctions, greatest elongations, and solstices and equinoxes. Notification support so you never miss an event. Polar Alignment Guide & Pre-Session Checklist Step-by-step polar alignment instructions and a fully customisable pre-session checklist with presets covering setup, camera, focusing, guiding, imaging, calibration, and wrap-up. β No subscription. No ads. No account required. Pay once, own everything forever. All calculations run on-device using your GPS location. No data is sent anywhere.
World Clock & Time Widgets
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Know the right time everywhereβand what the day looks like there. World Clock Plus brings cities around the world into one clear view. Switch between an interactive world dial and a sortable clock list, then move through past or future time to compare every city at once. PLAN ACROSS TIME ZONES β’ Drag through time or choose an exact date β’ Compare local times across all saved cities β’ Add the selected time to Calendar with a prefilled event β’ Share a clean set of city times with anyone SEE DAYLIGHT AT A GLANCE β’ Follow day and night on a live world map β’ View sunrise and sunset for each city β’ Choose analog or digital clocks, seconds, and 12- or 24-hour time β’ Use light, dark, or system appearance SET ALARMS BY CITY Create one-time or repeating alarms in the cityβs local time. Add a label, choose weekdays, set an exact date, and control snooze options. World Clock Plus keeps the city and time zone attached to the alarm. KEEP WORLD TIME ON YOUR HOME SCREEN Choose from seven configurable iOS widget designs, including multi-city world maps, horizontal digital and analog clocks, and compact single-city faces. BUILT FOR YOUR WORLD Search 12,000+ cities, reorder your favorites, switch between list and dial layouts, and keep the places that matter close at hand. Whether you coordinate a remote team, plan international calls, travel, or stay connected with people abroad, World Clock Plus helps you pick a better moment. Download World Clock Plus and make every time zone easier to understand Privacy Policy: https://anmisoft.com/world-clock/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Questions? Contact us anytime at support@anmisoft.com
Screenshots
Verdict
The clearest difference is update cadence: World Clock & Time Widgets at every 3 days against AstroTool's every 9 days. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. AstroTool sells 1 one-off in-app purchase and World Clock & Time Widgets sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
AstroTool ships an update every 9 days, World Clock & Time Widgets every 3 days. The most recent releases landed on October 7, 2026 and October 25, 2026 respectively.
| Parameter | AstroTool | World Clock & Time Widgets |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 days | Every 3 days β better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.4 β better |
| Further details β not scored | ||
| Size | 3 MB | 111 MB |
| Age rating | 4+ | +4 |
| Developer | luciano cavazos | Tran Duc Binh |
In-app purchases
AstroTool
- AstroTool Premium Unlock$4.99
World Clock & Time Widgets
- Lifetime$14.99
- Lifetime$29.99
Questions
Is AstroTool free?
Is World Clock & Time Widgets free?
Do AstroTool or World Clock & Time Widgets have ads?
Which is updated more often, AstroTool or World Clock & Time Widgets?
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