# SoSIM vs XINGFIT

The clearest difference is update cadence: SoSIM at every 3 months against XINGFIT's every 15 months. XINGFIT's advantage is iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

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

SoSIM ships an update every 3 months, XINGFIT every 15 months. The most recent releases landed on November 11, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | SoSIM | XINGFIT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (4 ratings)](https://appshunter.io/ios/app/sosim/id1558388399/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 15 months |
| Monetization | Free | — |
| Size | 47 MB | 194 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hutchison Telephone Company Limited](https://appshunter.io/developer/292047326) | [Shenzhen Yanxing Technology Co.,Ltd.](https://appshunter.io/developer/1693198746) |

## What reviewers say

### SoSIM

[App page](https://appshunter.io/ios/app/sosim/id1558388399)

Manage your Hong Kong prepaid SIM card services, including data usage, top-ups, and plan changes. This app allows you to switch between local and travel data, apply for number portability, and access support.

**Highlights:** Enquire data usage and SIM expiry, Purchase Hong Kong/Travel data packages, Instant top-up functionality, Mobile Number Portability (MNP) application, eSIM and new number exchange, Link to MoneyBack rewards, Manage Real Name Registration

**Features:** macOS Compatibility

**In-app purchases:** none


### XINGFIT

[App page](https://appshunter.io/ios/app/xingfit/id6450414651)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SoSIM free?

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

### Is XINGFIT free?

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

### Do SoSIM or XINGFIT have ads?

Neither SoSIM nor XINGFIT shows ads.

### Which is updated more often, SoSIM or XINGFIT?

SoSIM ships an update every 3 months, and XINGFIT every 15 months. Most recently, SoSIM was updated on November 11, 2026 and XINGFIT on November 7, 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.*