# PowerOn SG vs NUS Mobile key

The clearest difference is update cadence: PowerOn SG at every 3 weeks against NUS Mobile key's every 6 weeks. 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.

PowerOn SG ships an update every 3 weeks, NUS Mobile key every 6 weeks. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | PowerOn SG | NUS Mobile key |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Size | 78 MB | 114 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SINGAPORE POWERON TECHNOLOGY PTE LTD](https://appshunter.io/developer/1647099167) | [Trevo Pte Ltd](https://appshunter.io/developer/1777756379) |

## What reviewers say

### PowerOn SG

[App page](https://appshunter.io/ios/app/poweron-sg/id6443550607)

**Features:** macOS Compatibility

**In-app purchases:** none


### NUS Mobile key

[App page](https://appshunter.io/ios/app/nus-mobile-key/id6744627930)

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

**In-app purchases:** none


## Frequently asked questions

### Is PowerOn SG free?

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

### Is NUS Mobile key free?

NUS Mobile key is free to download, with no in-app purchases.

### Do PowerOn SG or NUS Mobile key have ads?

Neither PowerOn SG nor NUS Mobile key shows ads.

### Which is updated more often, PowerOn SG or NUS Mobile key?

PowerOn SG ships an update every 3 weeks, and NUS Mobile key every 6 weeks. Most recently, PowerOn SG was updated on October 27, 2026 and NUS Mobile key on October 25, 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.*