# QUARCS vs StarLoc

The clearest difference is review sentiment: StarLoc at 100% against QUARCS's 0%. StarLoc also leads on rating (5.0 vs 3.0) and update cadence (every 2 months vs every 6 months). QUARCS's advantage is monetization model (free vs paid) and device support (3 vs 1). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

StarLoc holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews point the same way: 0% of QUARCS's written reviews are positive against 100% of StarLoc's.

QUARCS ships an update every 6 months, StarLoc every 2 months. The most recent releases landed on October 6, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | QUARCS | StarLoc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/quarcs/id6479396546/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/starloc/id6760946563/reviews)** |
| Number of ratings | 1 | **3** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | **Free** | Paid |
| Size | 30 MB | 2 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Light Speed Vision(Beijing) Co., Ltd](https://appshunter.io/developer/1511662353) | [Daniel Schaich](https://appshunter.io/developer/1886958439) |

## What reviewers say

### QUARCS

[App page](https://appshunter.io/ios/app/quarcs/id6479396546)

This open-source software kit enables remote astrophotography capture via Wi-Fi and computer. It offers comprehensive control over telescope mounts, cameras, autoguiding, and electric focusers, integrating with Stellarium for sky mapping.

**Highlights:** Remote capture via Wi-Fi, Computer remote capture via LAN, Mount control, Camera control, Autoguiding, Electric focuser control, Stellarium skymap integration

**Features:** macOS Compatibility

**In-app purchases:** none


### StarLoc

[App page](https://appshunter.io/ios/app/starloc/id6760946563)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is QUARCS free?

QUARCS is free to download, with no in-app purchases.

### Is StarLoc free?

StarLoc is free to download, with no in-app purchases.

### Which has better reviews, QUARCS or StarLoc?

StarLoc is rated higher. QUARCS averages 3.0 out of 5 from 1 ratings, while StarLoc averages 5.0 from 3 ratings.

### Do QUARCS or StarLoc have ads?

Neither QUARCS nor StarLoc shows ads.

### Which is updated more often, QUARCS or StarLoc?

QUARCS ships an update every 6 months, and StarLoc every 2 months. Most recently, QUARCS was updated on October 6, 2026 and StarLoc on October 16, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*