# ProCall vs iSee Lạng Sơn

The clearest difference is update cadence: iSee Lạng Sơn at every 3 months against ProCall's every 11 months. ProCall's advantage is iOS requirement (10.3 vs 12.0). 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.

ProCall ships an update every 11 months, iSee Lạng Sơn every 3 months. The most recent releases landed on September 27, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | ProCall | iSee Lạng Sơn |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 3 months** |
| Size | 66 MB | 60 MB |
| Requires iOS | **10.3** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [VNPT Media Corporation](https://appshunter.io/developer/1142483774) | [Vietnam Posts and Telecommunications Group](https://appshunter.io/developer/1215567249) |

## What reviewers say

### ProCall

[App page](https://appshunter.io/ios/app/procall/id1230283178)

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

**In-app purchases:** none


### iSee Lạng Sơn

[App page](https://appshunter.io/ios/app/isee-lang-son/id1597910064)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ProCall free?

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

### Is iSee Lạng Sơn free?

iSee Lạng Sơn is free to download, with no in-app purchases.

### Do ProCall or iSee Lạng Sơn have ads?

Neither ProCall nor iSee Lạng Sơn shows ads.

### Which is updated more often, ProCall or iSee Lạng Sơn?

ProCall ships an update every 11 months, and iSee Lạng Sơn every 3 months. Most recently, ProCall was updated on September 27, 2026 and iSee Lạng Sơn on September 30, 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.*