U vs Z
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
U
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U-NAS Cloud is an application for managing documents stored on U-NAS. It is a convenient mobile tool for collaborating and sharing files in an efficient way. It allows remote file access through multiple devices and provides the ability for managing files on U-NAS server. It also supports playing audio from the server without downloading the file. U-NAS cloud adopts WebDAV protocol for file transfer. U-NAS server is needed for the full function of U-NAS Cloud.
Z
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Household power station operation management, convenient and quick check the power station situation. Real-time control of power station working conditions. Daily, monthly and annual power generation at a glance.
Screenshots
Verdict
The clearest difference is update cadence: Z at fortnightly against U's every 2 months. 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.
U ships an update every 2 months, Z fortnightly. The most recent releases landed on September 8, 2026 and September 15, 2026 respectively.
| Parameter | U | Z |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 31 MB | 38 MB |
| Age rating | 17+ | 4+ |
| Developer | Ningbo Wanyou Electronic Technology Co., Ltd. | Zhongrui Green Energy Technology (Shenzhen) Co., Ltd. |
In-app purchases
U
No in-app purchases
Z
No in-app purchases
