# 天行SS vs SuLian VPN

The clearest difference is rating: 天行SS at 4.5 against SuLian VPN's 4.0. 天行SS also leads on in-app purchases (none vs 10) and iOS requirement (9.0 vs 15.0). SuLian VPN's advantage is ads (none vs shown) and update cadence (weekly vs every 17 months). On price, ratings volume and device support there is nothing between them.

Both are free to download. SuLian VPN sells 10 one-off in-app purchases. 天行SS asks for nothing beyond the download.

天行SS holds the better App Store score, 4.5 against 4.0. Both are backed by a comparable volume of ratings — 4 and 4 respectively.

天行SS ships an update every 17 months, SuLian VPN weekly. The most recent releases landed on October 18, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | 天行SS | SuLian VPN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (4 ratings)](https://appshunter.io/ios/app/ss/id1450239098/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/sulian-vpn-fast-secure-proxy/id6450646489/reviews) |
| Number of ratings | 4 | 4 |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 17 months | **Weekly** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 32 MB | 33 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stone Studio Co., Ltd.](https://appshunter.io/developer/937993247) | [Xiamen Shangquan Meixue Investment Management Co., Ltd.](https://appshunter.io/developer/1189109288) |

## What reviewers say

### 天行SS

[App page](https://appshunter.io/ios/app/ss/id1450239098)

This networking tool enhances your internet experience on iOS devices. It offers advanced proxy modes, custom network rules, and easy configuration import. The app prioritizes user privacy by not collecting any personal information or data traffic.

**Highlights:** VPN-like functionality, Proxy modes (1 Proxy, 2 Direct, 3 Reject), Custom network rules, Import SS config via QR code, Import SS config via URL, Cellular/Wi-Fi support

**Features:** Vision Pro support

**In-app purchases:** none


### SuLian VPN

[App page](https://appshunter.io/ios/app/sulian-vpn-fast-secure-proxy/id6450646489)

This app optimizes and accelerates your network connection, providing stable, high-speed access to websites. It offers one-click connection and prioritizes user privacy with secure technology. Enjoy a faster internet experience with dedicated nodes and 24/7 customer support.

**Highlights:** Network optimization and acceleration, Exclusive high-speed nodes, One-click connection, Stable connection guarantee, User privacy protection, 24/7 customer service

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 7天VIP | $0.99 | one-time |
| 100速豆 | $0.99 | one-time |
| 30天VIP | $4.99 | one-time |
| 600速豆 | $5.99 | one-time |
| 1200速豆 | $9.99 | one-time |
| 90天VIP | $12.99 | one-time |
| 2200速豆 | $19.99 | one-time |
| 1年VIP | $29.99 | one-time |
| 4000速豆 | $34.99 | one-time |
| 6880速豆 | $49.99 | one-time |


## Frequently asked questions

### Is 天行SS free?

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

### Is SuLian VPN free?

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

### Which has better reviews, 天行SS or SuLian VPN?

天行SS is rated higher. 天行SS averages 4.5 out of 5 from 4 ratings, while SuLian VPN averages 4.0 from 4 ratings.

### Do 天行SS or SuLian VPN have ads?

天行SS shows ads; SuLian VPN does not.

### Which is updated more often, 天行SS or SuLian VPN?

天行SS ships an update every 17 months, and SuLian VPN weekly. Most recently, 天行SS was updated on October 18, 2026 and SuLian VPN on October 21, 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.*