# QUARCS vs AstroVitals

The clearest difference is review sentiment: AstroVitals at 50% against QUARCS's 0%. AstroVitals also leads on rating (3.7 vs 3.0) and update cadence (every 3 weeks vs every 6 months). QUARCS's advantage is iOS requirement (14.0 vs 17.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

AstroVitals holds the better App Store score, 3.7 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 50% of AstroVitals's.

QUARCS ships an update every 6 months, AstroVitals every 3 weeks. The most recent releases landed on October 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | QUARCS | AstroVitals |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/quarcs/id6479396546/reviews) | **[3.7 (3 ratings)](https://appshunter.io/ios/app/astrovitals/id6789724589/reviews)** |
| Number of ratings | 1 | **3** |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 30 MB | 9 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Light Speed Vision(Beijing) Co., Ltd](https://appshunter.io/developer/1511662353) | [MAXIMILIAN BOTEV](https://appshunter.io/developer/6789724591) |

## 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


### AstroVitals

[App page](https://appshunter.io/ios/app/astrovitals/id6789724589)

Monitor your telescope's vital signs remotely from your iPhone, iPad, or Apple Watch. View guiding, focus, image quality, and sequence progress on a glanceable dashboard. Receive smart alerts and optionally control your imaging session.

**Highlights:** Live guiding graphs and stability scores, Autofocus V-curve visualization, Full sequence tree with progress, 3D mount position and target altitude, Apple Watch app and complications, Home and lock screen widgets, Smart alerts for image quality and guiding

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is QUARCS free?

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

### Is AstroVitals free?

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

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

AstroVitals is rated higher. QUARCS averages 3.0 out of 5 from 1 ratings, while AstroVitals averages 3.7 from 3 ratings.

### Do QUARCS or AstroVitals have ads?

Neither QUARCS nor AstroVitals shows ads.

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

QUARCS ships an update every 6 months, and AstroVitals every 3 weeks. Most recently, QUARCS was updated on October 6, 2026 and AstroVitals on October 31, 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.*