Pocket Rulers vs Ruler
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pocket Rulers
This utility app offers digital ruler and protractor tools for iPhone, iPod Touch, and iPad. It supports various units like cm, inches, and sun for the ruler, and degrees and radians for the protractor. Users can customize backgrounds and colors.
- Digital ruler and protractor
- Supports cm, inch, and sun units
- Supports degree and radian measurements
- Moveable ruler via tap and drag
- Switch between picture and camera backgrounds
- Customizable background pictures from album
- Adjustable ruler and protractor colors
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This application provide ruler and protractor function on iPhone, iPod Touch and iPad2 iOS 10 is supported. In Ruler, supporting next units: + cm + inch + sun in Protractor: + degree + radian Ruler and Protractor ・You can move ruler by tap and drag. ・You can switch picture and camera by tapping camera button at top right of screen. ・Default background is picture. ・You can select background picture from album on your device. ・You can change color of Ruler and Protractor.
Ruler
Measure objects and distances with an on-screen ruler and augmented reality. Supports inches and centimeters, with features for linear sizes, angles, area, volume, and more. Save your measurements for later use.
- On-screen ruler for small objects
- Augmented Reality (AR) measuring
- Measure linear sizes in cm/inches
- Calculate angles, area, and volume
- Save measurements
- Generate plan projections
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Measure everything with a beautiful on-screen ruler. Choose between inches and centimeters. Tap the screen to start using the best multi-touch measuring system and find the size of all curious objects around you. Also with your camera measure everything accurate by using Augmented Reality (AR) feature. 1) Allows to tape measure linear sizes in cm, inches 2) With Bubble meter allows you to level objects horizontal 3) Save measurments 4) Allows to tape measure distance from device camera to a fixed point on the detected 3D plane. 5) Angle – allows to tape measure corners on 3D planes. 6) Area and Perimeter – allows to tape measure perimeter and area of the room. 7) Volume – allows to tape measure size of 3D objects. 8) Path – allows to calculate the length and area of the path. 9) Height – allows to tape measure height relative to the recognized surface. 10) Plan – generates plan projection for drawn objects and exports it . 11) On-screen Ruler app – measure small objects directly on the smartphone’s screen.
Screenshots
Verdict
The clearest difference is rating: Ruler at 4.2 against Pocket Rulers's 1.0. Ruler also leads on ratings volume (419 vs 1). Pocket Rulers's advantage is ads (none vs shown) and review sentiment (41% vs 15%). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Ruler holds the better App Store score, 4.2 against 1.0. That said, the two scores are not equally well evidenced: Ruler has 419 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 41% of Pocket Rulers's written reviews are positive against 15% of Ruler's, so the app with the better star average is not the one people write more warmly about.
Pocket Rulers ships an update every 5 months, Ruler every 14 months. The most recent releases landed on October 23, 2026 and October 27, 2026 respectively.
| Parameter | Pocket Rulers | Ruler |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 4.2 (419 ratings) — better |
| Positive reviews | 40.9% of reviews — better | 15.2% of reviews |
| Number of ratings | 1 | 419 — better |
| Update frequency | Every 5 months — better | Every 14 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 18 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Keiichi Okamoto | Matrix Software Co. |
Customer experience
Pocket Rulers
Ruler
Bugs and requests
Pocket Rulers
Not enough reviews yet to summarise bugs or requests.
Ruler
Reported bugs
8 issues- App crashes on iPhone 17 and iPad
- App crashes within 1 minute
- AR mode not functional
- Cannot switch to cm
- Measurements are out of scale
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- Centimeter measurement is wrong
- Ruler markings are wrong (10ths instead of 16ths)
- iPhone 14 Pro Max measured as over 9 inches
Requested features
7 requests- Fix crashing issues
- Enable switching to metric (cm)
- Improve AR mode usability
- Add save and print functionality
- Provide usage instructions
Show 2 moreShow fewer
- Ensure accurate scaling for all devices
- Fix ruler marking divisions
In-app purchases
Pocket Rulers
No in-app purchases
Ruler
No in-app purchases
