# Quasar Mobile vs Quasar ST

The clearest difference is in-app purchases: Quasar ST at none against Quasar Mobile's 4. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Quasar Mobile sells 4 one-off in-app purchases. Quasar ST asks for nothing beyond the download.

Quasar Mobile ships an update every 2 months, Quasar ST every 6 weeks. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Quasar Mobile | Quasar ST |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 6 MB | 59 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cias Elettronica Srl](https://appshunter.io/developer/1179992646) | [QUASAR SOLUCOES EM TRANSPORTES LTDA](https://appshunter.io/developer/1469842794) |

## What reviewers say

### Quasar Mobile

[App page](https://appshunter.io/ios/app/quasar-mobile/id768745804)

Remotely manage your home or business security system with ease and security. Control your system from anywhere using your iPhone or iPad, receiving instant notifications for any events or commands.

**Highlights:** Remote security system management, Easy and secure connection, Real-time event notifications, Remote control of outputs, Encrypted communication (AES 128-bit), Automatic system monitoring

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Base Package + History and Advanced Features | $2.99 | one-time |
| Base Package + Multi-Installation | $3.99 | one-time |
| Base Package + Video Verification | $3.99 | one-time |
| Full Package | $4.99 | one-time |


### Quasar ST

[App page](https://appshunter.io/ios/app/quasar-st/id6747052875)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Quasar Mobile free?

Quasar Mobile is free to download, with in-app purchases available.

### Is Quasar ST free?

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

### Do Quasar Mobile or Quasar ST have ads?

Neither Quasar Mobile nor Quasar ST shows ads.

### Which is updated more often, Quasar Mobile or Quasar ST?

Quasar Mobile ships an update every 2 months, and Quasar ST every 6 weeks. Most recently, Quasar Mobile was updated on October 19, 2026 and Quasar ST on October 24, 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.*