KYDZ vs SmartKey Box
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KYDZ
This app connects automotive locksmiths to specialized hardware for generating car remotes, smart cards, and performing key profiling. It offers tools like a mechanical key ruler and VIN lookup for efficient locksmithing tasks.
- Car remote control generation
- Smart card generation
- Key profiling cutting
- Mechanical key ruler
- Vehicle frame number query
- Bluetooth device connectivity
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An efficient App launched by Keyoung Electronics to serve global automotive locksmiths, it can connect Alien key machines and KYDZ generators via Bluetooth to realize functions such as car remote control generation, smart card generation, key profiling cutting, and more. The software also provides convenient functions such as mechanical key ruler and vehicle frame number query. The software connects to different devices through Bluetooth to achieve different functions. When connected to the Alien key machine, it can perform functions such as profiling and cutting mechanical keys; when connected to the KYDZ slave generator, remote control and smart card generation can be achieved.
SmartKey Box
Control your car's locks, trunk, and panic functions directly from your smartphone. This app connects via Bluetooth to a smart key box, offering a convenient and customizable way to manage vehicle access with various gesture controls.
- Bluetooth connectivity to smart key box
- Remote lock/unlock vehicle
- Trunk open function
- Panic alarm activation
- Customizable gesture controls (single-click, double-click, press-and-hold)
- Multiple style options
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This is a dedicated app developed by Xhorse for car owners, connecting via Bluetooth to Smart Key Box, Bluetooth Digital Smart Key, etc. It allows easy access to Lock/Unlock, Trunk, and Panic functions via your smartphone, offering a user-friendly, convenient experience. Additionally, the app provides multiple styles to suit different preferences, supporting single-click, double-click, and press-and-hold actions.
Screenshots
Verdict
The clearest difference is rating: SmartKey Box at 5.0 against KYDZ's 4.1. SmartKey Box also leads on iOS requirement (10.0 vs 15.0). KYDZ's advantage is ratings volume (7 vs 1). 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.
SmartKey Box holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: KYDZ has 7 ratings behind it against 1, so its average is the more settled of the two.
KYDZ ships an update every 10 days, SmartKey Box fortnightly. The most recent releases landed on September 13, 2026 and September 16, 2026 respectively.
| Parameter | KYDZ | SmartKey Box |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (7 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 7 — better | 1 |
| Update frequency | Every 10 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 403 MB | 181 MB |
| Age rating | 17+ | 4+ |
| Developer | Wuxi Kaiyang Electronic Technology Co., Ltd. | Shenzhen XHorse Electronics Co., Ltd. |
Customer experience
KYDZ
SmartKey Box
In-app purchases
KYDZ
No in-app purchases
SmartKey Box
No in-app purchases
