MasterKey vs Room Key
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MasterKey
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- Let you feel the convenience of keyless opening, and can manage all your keys at the same time. - The dual-frequency function automatically recognizes the properties of the door lock and then opens the door with the corresponding key.
Room Key
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.
- Unlock doors using smartphone
- Replaces keycards and fobs
- Simple phone-to-lock interaction
- Convenient access solution
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With Room Key, you can unlock your door with your phone. No more lost keycards or fobs. Just present your phone to the lock to open your door.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | MasterKey | Room Key |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (3 ratings) — better |
| Number of ratings | — | 3 — better |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 2 MB | 4 MB |
| Age rating | 4+ | 17+ |
| Developer | SMARTCHIP MICROELECTRONICS CORP. | Kohost LLC |
In-app purchases
MasterKey
No in-app purchases
Room Key
No in-app purchases
