Comparison

NS Walker vs PowerMaster

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

Head to head

NS Walker

Sensor installation

Free

🔧 Utilities

★ 5.03 ratingsView app →

About

NS Walker

This utility app simplifies the process of installing sensors. It provides a streamlined interface for managing sensor installations, making the setup process more efficient for users.

Highlights

Facilitates sensor installations
Streamlined installation process
Sensor management interface
Efficient setup

Read full description

App for facilitating sensor installations.

About

PowerMaster

Features

Read full description

Monitor your UPS and get prompt notification anywhere and anytime! PowerMaster app provides a status overview of your UPS. It enables you to monitor your UPS and supports event notifications to ensure instant event update. PowerMaster app also supports multiple UPS monitoring. You can select a UPS from the UPS List and check its status. Download free PowerMaster app and enjoy the benefits the following features bring: - Monitor Monitor page provides an overview of the UPS current status, including power supplied, voltage supplied, power condition, battery capacity, battery status, estimated runtime and UPS load. Multiple UPS monitoring is also available. - Event log Event log info provides the a list of happened events.

Screenshots

NS Walker3 screens

PowerMaster4 screens

Verdict

The call

NS Walker and PowerMaster are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

NS Walker ships an update every 2 months, PowerMaster every 4 months. The most recent releases landed on October 6, 2026 and October 11, 2026 respectively.

ScorecardNo meaningful differences

NS Walker versus PowerMaster: the parameters behind the verdict, then further details
Parameter	NS Walker	PowerMaster
Price	Free	Free
Rating	5.0 (3 ratings) — better	—
Number of ratings	3 — better	—
Update frequency	Every 2 months — better	Every 4 months
Ads	No	No
In-app purchases	No	No
Monetization	Free	—
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	13.0	12.0 — better
Further details — not scored
Size	81 MB	52 MB
Age rating	4+	17+
Developer	Nordsense Inc.	Cyber Energy Co., Ltd.

In-app purchases

None

NS Walker

No in-app purchases

None

PowerMaster

No in-app purchases

Questions

Is NS Walker free?

NS Walker is free to download, with no in-app purchases.

Is PowerMaster free?

PowerMaster is free to download, with no in-app purchases.

Do NS Walker or PowerMaster have ads?

Neither NS Walker nor PowerMaster shows ads.

Which is updated more often, NS Walker or PowerMaster?

NS Walker ships an update every 2 months, and PowerMaster every 4 months. Most recently, NS Walker was updated on October 6, 2026 and PowerMaster on October 11, 2026.