# DoorFlow Utility vs SmartKey

The clearest difference is update cadence: SmartKey at every 2 months against DoorFlow Utility's every 11 months. 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.

DoorFlow Utility ships an update every 11 months, SmartKey every 2 months. The most recent releases landed on September 10, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | DoorFlow Utility | SmartKey |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 2 months** |
| Size | 22 MB | 4 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [NetNodes Ltd](https://appshunter.io/developer/1019492013) | [Geo Taxi LLC](https://appshunter.io/developer/1479129662) |

## What reviewers say

### DoorFlow Utility

[App page](https://appshunter.io/ios/app/doorflow-utility/id1093835722)

**Features:** macOS Compatibility

**In-app purchases:** none


### SmartKey

[App page](https://appshunter.io/ios/app/smartkey-access-control/id6469455536)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DoorFlow Utility free?

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

### Is SmartKey free?

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

### Do DoorFlow Utility or SmartKey have ads?

Neither DoorFlow Utility nor SmartKey shows ads.

### Which is updated more often, DoorFlow Utility or SmartKey?

DoorFlow Utility ships an update every 11 months, and SmartKey every 2 months. Most recently, DoorFlow Utility was updated on September 10, 2026 and SmartKey on May 16, 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.*