# Rang Dong Smart vs PHGLock PASS

The clearest difference is review sentiment: PHGLock PASS at 100% against Rang Dong Smart's 0%. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 6 months. The most recent releases landed on September 10, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Rang Dong Smart | PHGLock PASS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (31 ratings)](https://appshunter.io/ios/app/rang-dong-smart/id1453529638/reviews)** | — |
| Number of ratings | **31** | — |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | Every 6 months |
| Monetization | Free | Free |
| Size | 218 MB | 335 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RANG DONG LIGHT SOURCE AND VACUUM FLASK JOINT STOCK COMPANY](https://appshunter.io/developer/1453529637) | [BLUE UNIVERSE CORPORATION](https://appshunter.io/developer/1332238936) |

## What reviewers say

### Rang Dong Smart

[App page](https://appshunter.io/ios/app/rang-dong-smart/id1453529638)

Control and monitor your smart home devices remotely. Create custom automation scenes and schedules for precise device management. Share device access with family members for easy, anytime, anywhere control.

**Highlights:** Connect and control smart devices, Create automation scenes, Schedule timers and countdowns, Share device access with family, Real-time device monitoring, Remote control anytime, anywhere

**Features:** Vision Pro support

**In-app purchases:** none


### PHGLock PASS

[App page](https://appshunter.io/ios/app/phglock-pass/id1498197165)

This utility app allows you to unlock various types of locks and cylinders using your smartphone via Bluetooth. It requires specific hardware to function. Contact the developer within the app for more details.

**Highlights:** Unlock doors via Bluetooth, Compatible with specific locks/cylinders, Requires dedicated hardware, In-app contact for information

**In-app purchases:** none


## Frequently asked questions

### Is Rang Dong Smart free?

Rang Dong Smart is free to download, with no in-app purchases.

### Is PHGLock PASS free?

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

### Do Rang Dong Smart or PHGLock PASS have ads?

Neither Rang Dong Smart nor PHGLock PASS shows ads.

### Which is updated more often, Rang Dong Smart or PHGLock PASS?

Rang Dong Smart ships an update every 6 months, and PHGLock PASS every 6 months. Most recently, Rang Dong Smart was updated on September 10, 2026 and PHGLock PASS on June 4, 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.*