Comparison

Photo Measures Lite vs 100cm Ruler

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

Head to head
About

Photo Measures Lite

Easily capture photos and annotate them with precise measurements, dimensions, and text notes. Ideal for home improvement, design, or real estate projects, ensuring you always have accurate spatial information at your fingertips.

Highlights
  • Draw measures directly on photos
  • Zoom for precision
  • Add text comments
  • Support for angles
  • Imperial or metric units
  • Organize photos by category
  • Export high-resolution dimensions
Features
Read full description

Photo Measures is the most elegant and the easiest way to save measures on your own photos on iPhone, iPad and iPod Touch! Architectural Digest - "Very useful when shopping or meeting with contractors" Tuaw.com - "It's perfect for your own work around the house, and handy for creating plans to bring to a contractor" AppSafari - "So incredibly convenient" Featured on the front page of the AppStore under New & Noteworthy and Staff Favorites in more than 70 countries, including the US, France, Germany and Canada. Recommended by many reference magazines, websites and blogs all around the world: Architectural Digest, Tuaw.com, This Old House, AppOfTheDay.com, AppSafari.com, etc... ◆◆◆◆◆ Constructing a house? Engineering a new project? Moving to a new place? Take some photos and note down the dimensions on the photos to remember the exact layout, and to make sure that everything will fit easily. Need to keep in mind the exact dimensions of an object? Just take a photo and quickly write them on it. Are you decorating? Want to buy a new frame or a new furniture but not sure it will fit? No problem since you can have all your house dimensions always with you! ◆◆◆◆◆ You are a real estate agent? A contractor? An engineer? A designer? Working in the construction industry? Someone who wants to keep his house's measure easily accessible? Whenever you need to save dimensions, sizes, angles or write down a detail you need to remember, Photo Measures will help you to be more efficient and more accurate. ◆◆◆◆◆ Photo Measures helps you to: . Take a photo and directly draw measures on it . Zoom into and out of your photo when you need more precision . Edit your measures with a very intuitive interface . Quickly add text as comments when measures are not enough . Native support for angles . Save your measures in imperial or metric units . Easily organize your photos by category . Export your dimensions in high resolution by email or to the photo library . Import photos of any size and aspect ratio . Support for Retina display ◆◆◆◆◆ The Lite version has a few limitations compared to the full version - the Lite version is limited to 2 photos only - the photos you are exporting to the Photo Library or by email with the Lite version come with a watermark The next updates will also have more features available only through the full version.

About

100cm Ruler

This app provides a digital ruler for measuring the length and diameter of small objects directly on your device. It features a millimeter scale and allows for easy sliding to measure.

Highlights
  • Digital ruler functionality
  • Millimeter scale
  • Diameter measurement
  • Screen sliding for measurement
  • Ad removal option
Features
Read full description

Plotting scale is useful to measure the length of small articles and insects. Squared in millimeters on the lower left, thus the diameter can be measured roughly. Hold the screen and slide your iPhone to the right. https://www.youtube.com/watch?v=kxU9xi88IiY Ads can be removed on "Info page".

Screenshots

Photo Measures Lite4 screens
100cm Ruler3 screens

Verdict

The call

The clearest difference is rating: 100cm Ruler at 4.0 against Photo Measures Lite's 2.2. Photo Measures Lite's advantage is in-app purchases (none vs 1) and ratings volume (31 vs 1). On price, review sentiment, update cadence and ads 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. 100cm Ruler sells 1 one-off in-app purchase. Photo Measures Lite asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

100cm Ruler holds the better App Store score, 4.0 against 2.2. That said, the two scores are not equally well evidenced: Photo Measures Lite has 31 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 49% of Photo Measures Lite's written reviews are positive against 45% of 100cm Ruler's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on August 16, 2026 and June 11, 2026 respectively.

Scorecard4 real differences · 6 level
Photo Measures Lite versus 100cm Ruler: the parameters behind the verdict, then further details
ParameterPhoto Measures Lite100cm Ruler
PriceFreeFree
Rating2.2 (31 ratings)4.0 (1 ratings) — better
Positive reviews48.8% of reviews — better45.1% of reviews
Number of ratings31 — better1
Update frequencyEvery 3 monthsEvery 3 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS11.0 — better12.0
Further details — not scored
Size25 MB62 MB
Age rating4+4+
DeveloperCubentZOOMO, Inc.

Customer experience

Photo Measures Lite

All ratings31 ratings
Positive22.6%
Neutral3.2%
Negative74.2%
Written reviews127 reviews
Positive48.8%
Neutral9.4%
Negative41.7%

100cm Ruler

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews51 reviews
Positive45.1%
Neutral13.7%
Negative41.2%

In-app purchases

None

Photo Measures Lite

No in-app purchases

1 purchases

100cm Ruler

One-time1
  • Remove ADS$1.99

Questions

Is Photo Measures Lite free?
Photo Measures Lite is free to download, with no in-app purchases.
Is 100cm Ruler free?
100cm Ruler is free to download, with in-app purchases available.
Which has better reviews, Photo Measures Lite or 100cm Ruler?
100cm Ruler is rated higher. Photo Measures Lite averages 2.2 out of 5 from 31 ratings, while 100cm Ruler averages 4.0 from 1 ratings.
Do Photo Measures Lite or 100cm Ruler have ads?
Neither Photo Measures Lite nor 100cm Ruler shows ads.
Which is updated more often, Photo Measures Lite or 100cm Ruler?
Photo Measures Lite ships an update every 3 months, and 100cm Ruler every 3 months. Most recently, Photo Measures Lite was updated on August 16, 2026 and 100cm Ruler on June 11, 2026.

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