KZJ vs VOLDA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KZJ
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This APP uses Bluetooth control mode to control the device, so that the device can only run within a specified time to realize automatic control.
VOLDA
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VOLDA is a smart device control app that supports remote control, scheduled tasks, and real-time device status monitoring, providing you with a convenient smart life experience.
Screenshots
Verdict
The clearest difference is update cadence: VOLDA at every 2 weeks against KZJ's every 2 months. VOLDA also leads on iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support 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.
KZJ ships an update every 2 months, VOLDA every 2 weeks. The most recent releases landed on October 24, 2026 and October 17, 2026 respectively.
| Parameter | KZJ | VOLDA |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.1 | 13.0 — better |
| Further details — not scored | ||
| Size | 70 MB | 34 MB |
| Age rating | 12+ | 4+ |
| Developer | Zhongshan Kangzhijie Electrical Appliances Co., Ltd. | 颖卓 赵 |
In-app purchases
KZJ
No in-app purchases
VOLDA
No in-app purchases
