Comparison

EV扩展屏 vs 保全系统企业端

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

EV扩展屏

Free

🔧 Utilities

★ 1.01 ratingsView app →

About

EV扩展屏

This utility app allows you to use your mobile device as an external display for your computer. It supports both extended and mirrored screen modes, and can also sync your computer's audio to your phone or tablet.

Highlights

WiFi connection
Dual screen collaboration
Extended display mode
Mirrored display mode
Computer audio sync

Features

Read full description

主要功能 WiFi连接：支持局域网一键直连双屏协作：支持扩展屏或镜像屏模式电脑声音同步：手机/平板可当电脑外接音箱

About

保全系统企业端

Features

Read full description

保全系统企业端具有企业子主账号登录，保全数据管理，审核管理，用户权限管理等模块；保全数据管理模块可查看审核文件数量、已通过文件数量、已驳回文件数量，主账户登录后，具有在保全数据管理页面提交审核的权限、具有管理审核数据的权限、具有管理审核关系人的权限等。该系统可以用于企业的数据保全服务，提高企业数据保全效率，企业端没有任何付费项目。

Screenshots

EV扩展屏4 screens

保全系统企业端4 screens

Verdict

The call

The clearest difference is update cadence: EV扩展屏 at every 3 months against 保全系统企业端's every 19 months. 保全系统企业端's advantage is iOS requirement (13.0 vs 15.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

EV扩展屏 ships an update every 3 months, 保全系统企业端 every 19 months. The most recent releases landed on October 3, 2026 and October 27, 2026 respectively.

Scorecard2 real differences · 8 level

EV扩展屏 versus 保全系统企业端: the parameters behind the verdict, then further details
Parameter	EV扩展屏	保全系统企业端
Price	Free	Free
Rating	1.0 (1 ratings) — better	—
Positive reviews	0.0% of reviews	—
Number of ratings	1 — better	—
Update frequency	Every 3 months — better	Every 19 months
Ads	No	No
In-app purchases	No	No
Monetization	Free	—
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	15.0	13.0 — better
Further details — not scored
Size	9 MB	2 MB
Age rating	4+	4+
Developer	振宇胡	风语者科技(北京)有限公司

In-app purchases

None

EV扩展屏

No in-app purchases

None

保全系统企业端

No in-app purchases

Questions

Is EV扩展屏 free?

EV扩展屏 is free to download, with no in-app purchases.

Is 保全系统企业端 free?

保全系统企业端 is free to download, with no in-app purchases.

Do EV扩展屏 or 保全系统企业端 have ads?

Neither EV扩展屏 nor 保全系统企业端 shows ads.

Which is updated more often, EV扩展屏 or 保全系统企业端?

EV扩展屏 ships an update every 3 months, and 保全系统企业端 every 19 months. Most recently, EV扩展屏 was updated on October 3, 2026 and 保全系统企业端 on October 27, 2026.