Ruler - CM, MM, Inches Reviews

Ruler Reviews

Published by on 2025-10-03

🏷️ About: Ditch bulky tools! Measure lengths, widths, and diagonals precisely anywhere with just your phone. *** Features *** ► Smart Multi-Mode Measure * Switch units freely: cm/mm, inch/fractions, with dual-unit display for instant comparison.


Is Ruler Safe to Use?

We Investigate the app owner's website (7kit.cn), verify their legitimacy, and uncover hidden scams and complaints.


Overall Customer Experience 😎


🤬 Negative experience
56.1%

😎 Positive experience
43.9%

🫥 Neutral
0.0%

~ from Justuseapp.com NLP analysis of 79 combined software reviews.

Is Ruler Safe?
Ruler - CM, MM, Inches is very safe to use.
43.9/100

  Safety Analysis »»

Is Ruler Legit?
Ruler - CM, MM, Inches looks authentic and legitimate.
43.9/100



Read 20 Customer Service Reviews 😠💢

3.5 out of 5
Worthless for Inches

If you’re looking to measure 1/4” or 1/8”, look somewhere else. If you need to measure 1/10”, then it’s perfect, except no one does this. Clearly someone who doesn’t understand American measurements.

Obviously not for inches

Seriously? Inches are divided into increments of 10? How do you measure to the 1/4”????????! I know metric makes more theoretical sense but if you’re measuring in standard Ruler is useless. Pardon me for being American but I have to deal with inches and Ruler doesn’t help.

Can’t see measurements under finger

You can’t see the measurements under your finger as you adjust them. They should be slightly offset or fixed somewhere else

Measurements are inaccurate

Measurements are inaccurate. The distance between one inch and two inches is bigger than a paper this app. Also, when I clicked non App support there was a warning to not open the page as it was flagged as place that will try to steal personal information.

No paid version anymore?

I had paid for the version without ads several months ago. I just checked today and ads are showing on my app. On top of that, I don’t see an option to remove them. What’s going on?

No line from the start

No line from the start

please fix hash marks

People who use inches, use fractional inches that is 1/2, 1/4, 3/8, etc. Your increments are in tenths which actually make using inches very difficult

Decent free app with clean interface

It's great having a simple this app app. The interface is clean. The only thing I don't like is that the inches mode has subdivisions of 1/10th inch instead of the more standard 1/8th or 16th.

No-Ad Option

This is a fairly simplistic this app app that suits the needs I have, however, the ads are kind of annoying. This is an app I would pay a reasonable price around (maybe) $0.99 to make the ads go away forever. Otherwise, great app!

Ay man it’s pretty cool

Cool this app, I had to measure something that we all know what it is.

Make your ads disppear

For anyone who is suffering from the ads, simply don’t give Ruler internet access (or change it later in settings), or take a screenshot and use it later in your photos. :)

Amazing functionality

Not the prettiest interface but great tools.

You Need To Download This App

This is one of the best rulers on Ruler Store. Simple to use, great interface, fluid, and the developer(s) listen to your feedback and are on the ball. On one update Ruler did not work on my iPad. I wrote them and within 48 hours a new update was available and fixed the issue. I have contacted other developers on different apps and nothing. This was amazing. So you have a great app and great people standing behind it. Not a brainer.

Nice app

Has a Simple this app plus a protractor, level or leveler (to measure if a surface is flat), compass and a random light thing that flashes like a torch.

So amazing

I couldn’t find a this app around the house and was thinking of getting another this app from the local target and then found Ruler. Made my own this app from Ruler. Recommended for sure!!!

It is a perfect ruler app

I never write reviews, literally this is my first review ever and Ruler nails the task at hand so well I had to compliment it. Super simple and has every feature you need but not too many, simple layout. Brilliant

Simply Perfect

A thought experiment led me to search for Ruler. And sure enough, some genius had already developed it. In my opinion, every iPhone and iPad needs this. Mostly because I value quantification.

Absolutely a great app

So i was curious about what size my pocket watch movement was and i was able to use Ruler to measure it and figure out what size it was. Ruler is great for very small objects. I highly recommend if you are into scale model stuff or anything that has to do with small things

Developer please read

Ruler is great. The only trouble I find is that if you are measuring something, your finger gets in the way when adjusting the grid. You should be able to click and drag from other parts of the screen to prevent this.

No frills meauring

An excellent little app. Just the job for visualizing the size of objects within dimensions of screen or, in scrolling mode, much larger objects.

Just what I needed!!



Is Ruler Safe? 🙏

Ruler - CM, MM, Inches is very safe to use. JustUseApp Safety Score for Ruler is 43.9/100.
This assessment is based on our NLP analysis of 79 user reviews. Combined with the app store average rating of 3.5/5.

Safety Analysis

48.1% of users say app is safe 👍
48.1%

32.5% of users say app is risky 🚨
32.5%

19.5% of users have some concerns ⚠️
19.5%


Is Ruler Legit? 💯

Ruler - CM, MM, Inches looks authentic and legitimate. Our NLP models processed user feedback to estimate legitimacy. JustUseApp Legitimacy Score for Ruler is 43.9/100 .
This conclusion is based on analysis of 79 user reviews.

🔏 Privacy & Data Safety

Ruler collected the following data from you:

  • Data Used to Track You:
    • Identifiers
    • Usage Data
    • Diagnostics
    • Other Data
  • Data Linked to You:
    • Identifiers
    • Usage Data
    • Diagnostics
    • Other Data



How was your experience with Ruler - CM, MM, Inches? Post a Review




Features

* Flexible starting points: Measure from screen edges or device edges for diverse scenarios.

* Auto-calibration tech: Dynamically adjusts based on device model, ensuring ≤1% error rate.

* Screen lock: Freeze measurements instantly to prevent accidental touches or slips.

Ditch bulky tools! Measure lengths, widths, and diagonals precisely anywhere with just your phone.

* Switch units freely: cm/mm, inch/fractions, with dual-unit display for instant comparison.

  Contact Support
Developer:
Xi'an 7kit Technology Co., Ltd.

Contact e-Mail:

Website:
🌐 7kit.cn

Privacy Policy: