KRAT vs JoyInn Admin
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
KRAT
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Realize interaction between mobile phones and smart locks through Bluetooth.
JoyInn Admin
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Hotel managers can use it to manage the rooms, devices and staff tasks. Hotel staffs can use it to accept hotel tasks, including clean/repair/guest service.
Screenshots
Verdict
The clearest difference is update cadence: KRAT at monthly against JoyInn Admin's every 6 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
KRAT ships an update monthly, JoyInn Admin every 6 months. The most recent releases landed on May 17, 2026 and September 11, 2026 respectively.
| Parameter | KRAT | JoyInn Admin |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly โ better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 12.0 โ better |
| Further details โ not scored | ||
| Size | 42 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | ้ ็ | UFun Networks Technology Co., Limited |
In-app purchases
KRAT
No in-app purchases
JoyInn Admin
No in-app purchases
