StarLoc vs SkySync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
StarLoc
This app provides precise GPS coordinates, altitude, and time data in a night-friendly interface for astronomers. It offers essential information for telescope alignment and observation, with a focus on preserving night vision.
- Night-friendly dark theme
- Accurate latitude and longitude (DMS)
- Decimal coordinate support
- Real-time GPS updates
- Local, UTC, and offset time
- Elevation in meters and feet
- Horizontal and vertical accuracy
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StarLoc is a clean, distraction-free GPS tool designed specifically for stargazing. Get accurate latitude, longitude, altitude, and time in formats ready for telescope alignment all in a night-friendly interface. Built for the Night Sky • Unlike standard GPS apps, StarLoc uses a dark theme with red and green text to help preserve your night vision during astronomy sessions. Accurate Location Data • Latitude & Longitude (DMS format) • Decimal coordinates for quick entry • Real-time GPS updates • High-accuracy positioning data Time & Alignment Ready • Local time (12-hour & 24-hour) • UTC time and offset • Date display for precise telescope setup Altitude & Accuracy • Elevation in meters and feet • Horizontal and vertical accuracy readings Simple, focused and reliable. StarLoc provides the essential data you need to align your telescope and start observing. Perfect for backyard astronomers and dark-sky explorers alike.
SkySync
This app helps you discover and track celestial events like meteor showers and eclipses. It provides countdown timers and customizable notifications so you never miss an opportunity to stargaze. It also features a dark sky finder to locate optimal viewing spots.
- Event calendar (meteor showers, eclipses, moons, comets)
- Countdown timers to events
- Customizable notifications
- Dark sky finder with Bortle scale
- Minimalist nighttime design
- No account required
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SkySync tracks upcoming cosmic events and alerts you before they happen — so you're always ready to look up. Features: * Full event calendar: meteor showers, eclipses, full & new moons, comets, planet oppositions, and satellites * Countdown timers to every upcoming event * Custom notifications — get alerted 1 hour, 1 day, 3 days, or 1 week ahead * Dark sky finder — locate the best stargazing spots near you with Bortle scale ratings * Clean, minimal design built for nighttime use No account required. No ads. Just the sky.
Screenshots
Verdict
The clearest difference is monetization model: SkySync at free against StarLoc's paid. SkySync also leads on update cadence (weekly vs every 2 months) and iOS requirement (15.1 vs 17.0). On price, rating, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for StarLoc against 5.0 for SkySync. Both are backed by a comparable volume of ratings — 3 and 4 respectively.
StarLoc ships an update every 2 months, SkySync weekly. The most recent releases landed on October 16, 2026 and October 20, 2026 respectively.
| Parameter | StarLoc | SkySync |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (4 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 | 4 — better |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 2 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Daniel Schaich | KAHLESON MILES BLANCHARD |
Customer experience
StarLoc
SkySync
In-app purchases
StarLoc
No in-app purchases
SkySync
No in-app purchases
