Comparison

Lock Tool vs chmod util

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

Head to head

chmod permissions utility

Free

🔧 Utilities

No ratingsView app →

About

Lock Tool

Features

Read full description

The cLock tool is a tool that is provided specially for the hotel and apartment customers to configure network of the PINE WORLD WIFi door lock.It needs to cooperate with the supporting backstage management system, so as to realize the remote control of all the locks of all hotels and apartments.

About

chmod util

Features

Read full description

chmod util helps you understand and build Unix file permissions. Tap r, w, and x for the owner, group, and everyone else, and see the corresponding chmod number instantly. Choose common modes such as 644, 755, and 600, each with a clear explanation of who gets access. A built-in, manual explains the essentials: - What read, write, and execute mean. - How permissions differ for files and directories. - How to remember the 4–2–1 rule. - All eight permission patterns in a handy cheat sheet. - Practical examples of chmod commands. A small, focused companion for developers, students, and anyone learning Unix permissions.

Screenshots

Lock Tool4 screens

chmod util3 screens

Verdict

The call

The clearest difference is update cadence: Lock Tool at every 3 months against chmod util's every 63 months. Lock Tool also leads on iOS requirement (12.0 vs 17.6). 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

Lock Tool ships an update every 3 months, chmod util every 63 months. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

Scorecard2 real differences · 4 level

Lock Tool versus chmod util: the parameters behind the verdict, then further details
Parameter	Lock Tool	chmod util
Price	Free	Free
Update frequency	Every 3 months — better	Every 63 months
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPod	iPhone, iPad, Mac — better
Requires iOS	12.0 — better	17.6
Further details — not scored
Size	19 MB	2 MB
Age rating	4+	4+
Developer	Shenzhen Zhixin Wulian Technology Co., Ltd.	Mattia Righetti

In-app purchases

None

Lock Tool

No in-app purchases

None

chmod util

No in-app purchases

Questions

Is Lock Tool free?

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

Is chmod util free?

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

Do Lock Tool or chmod util have ads?

Neither Lock Tool nor chmod util shows ads.

Which is updated more often, Lock Tool or chmod util?

Lock Tool ships an update every 3 months, and chmod util every 63 months. Most recently, Lock Tool was updated on November 2, 2026 and chmod util on November 7, 2026.