# MasterKey vs Room Key

The clearest difference is iOS requirement: MasterKey at 9.0 against Room Key's 15.0. 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 3 weeks. The most recent releases landed on September 17, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | MasterKey | Room Key |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/room-key/id6447079573/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | — | Free |
| Size | 2 MB | 4 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [SMARTCHIP MICROELECTRONICS CORP.](https://appshunter.io/developer/872823142) | [Kohost LLC](https://appshunter.io/developer/1680250698) |

## What reviewers say

### MasterKey

[App page](https://appshunter.io/ios/app/masterkey/id1359619946)

**Features:** macOS Compatibility

**In-app purchases:** none


### Room Key

[App page](https://appshunter.io/ios/app/room-key/id6447079573)

Unlock your door using your smartphone. This app eliminates the need for physical keycards or fobs, allowing you to simply present your phone to the lock for access.

**Highlights:** Unlock doors using smartphone, Replaces keycards and fobs, Simple phone-to-lock interaction, Convenient access solution

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is MasterKey free?

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

### Is Room Key free?

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

### Do MasterKey or Room Key have ads?

Neither MasterKey nor Room Key shows ads.

### Which is updated more often, MasterKey or Room Key?

MasterKey ships an update every 3 weeks, and Room Key every 3 weeks. Most recently, MasterKey was updated on September 17, 2026 and Room Key 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.*