# Sim PRO vs Chọn Số

The clearest difference is review sentiment: Sim PRO at 50% against Chọn Số's 14%. Chọn Số's advantage is update cadence (every 3 weeks vs every 6 weeks). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Sim PRO ships an update every 6 weeks, Chọn Số every 3 weeks. The most recent releases landed on June 4, 2026 and August 14, 2026 respectively.

## The numbers

| Metric | Sim PRO | Chọn Số |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **50.0% of reviews** | 14.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 55 MB | 91 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Bentic, JSC.](https://appshunter.io/developer/1196587398) | [MobiFone](https://appshunter.io/developer/437730616) |

## What reviewers say

### Sim PRO

[App page](https://appshunter.io/ios/app/sim-pro/id1535142522)

Discover and purchase beautiful phone numbers from major Vietnamese carriers. This app offers competitive pricing, fast delivery, and dedicated customer support for sim enthusiasts.

**Highlights:** Millions of phone numbers, Major Vietnamese carriers, Competitive pricing, Fast delivery, Dedicated customer support

**Features:** macOS Compatibility

**In-app purchases:** none


### Chọn Số

[App page](https://appshunter.io/ios/app/chon-so/id1602526260)

This app simplifies managing your mobile services. Easily register, order SIM cards, and sign up for plans online. Enjoy convenient home delivery and flexible payment options.

**Highlights:** Easy account registration, Order history management, Quick SIM card selection, OTP plan registration, Home SIM delivery, Online payment options, Online activation (physical & eSIM)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sim PRO free?

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

### Is Chọn Số free?

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

### Do Sim PRO or Chọn Số have ads?

Neither Sim PRO nor Chọn Số shows ads.

### Which is updated more often, Sim PRO or Chọn Số?

Sim PRO ships an update every 6 weeks, and Chọn Số every 3 weeks. Most recently, Sim PRO was updated on June 4, 2026 and Chọn Số on August 14, 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.*