# GT FMS vs SG Smartlock App

The clearest difference is update cadence: SG Smartlock App at every 10 months against GT FMS's every 28 months. SG Smartlock App also leads on iOS requirement (15.0 vs 17.0). 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.

GT FMS ships an update every 28 months, SG Smartlock App every 10 months. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | GT FMS | SG Smartlock App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 28 months | **Every 10 months** |
| Size | 134 MB | 26 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [GT Business Systems Sdn Bhd](https://appshunter.io/developer/1638884035) | [CA M&E Engineering Pte Ltd](https://appshunter.io/developer/995140179) |

## What reviewers say

### GT FMS

[App page](https://appshunter.io/ios/app/gt-fms/id1506572730)

**Features:** macOS Compatibility

**In-app purchases:** none


### SG Smartlock App

[App page](https://appshunter.io/ios/app/sg-smartlock-app/id6741783944)

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

**In-app purchases:** none


## Frequently asked questions

### Is GT FMS free?

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

### Is SG Smartlock App free?

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

### Do GT FMS or SG Smartlock App have ads?

Neither GT FMS nor SG Smartlock App shows ads.

### Which is updated more often, GT FMS or SG Smartlock App?

GT FMS ships an update every 28 months, and SG Smartlock App every 10 months. Most recently, GT FMS was updated on November 7, 2026 and SG Smartlock App on November 8, 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.*