# Pronet VPN vs STS

The clearest difference is in-app purchases: STS at none against Pronet VPN's 4. STS also leads on update cadence (every 2 weeks vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Pronet VPN sells 4 in-app purchases, starting at $3.99 per month. STS asks for nothing beyond the download.

Pronet VPN ships an update every 6 weeks, STS every 2 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | Pronet VPN | STS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/pronet-vpn/id1484243003/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 36 MB | 12 MB |
| Requires iOS | **12.0** | 13.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Symlex Technologies LLC](https://appshunter.io/developer/1769364528) | [中铁工程装备集团有限公司](https://appshunter.io/developer/1447605449) |

## What reviewers say

### Pronet VPN

[App page](https://appshunter.io/ios/app/pronet-vpn/id1484243003)

This application provides a secure and private internet connection using a customized VPN protocol. It offers a log-free experience to protect user data and browsing activity. The service is free to use with optional subscription plans for enhanced features.

**Highlights:** Log-free VPN, Customized AnyConnect protocol, Free to use, Secure internet connection, Privacy protection

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Package | $3.99 | per month |
| 3 Months Package | $7.99 | per 3 months |
| 6 Months Package | $14.99 | per 6 months |
| 1 Year Package | $24.99 | per year |


### STS

[App page](https://appshunter.io/ios/app/sts-mobile/id1538528756)

**In-app purchases:** none


## Frequently asked questions

### Is Pronet VPN free?

Pronet VPN is free to download, with in-app purchases available.

### Is STS free?

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

### Do Pronet VPN or STS have ads?

Neither Pronet VPN nor STS shows ads.

### Which is updated more often, Pronet VPN or STS?

Pronet VPN ships an update every 6 weeks, and STS every 2 weeks. Most recently, Pronet VPN was updated on November 3, 2026 and STS on November 3, 2026.

---

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