Ruler Professional vs Ruler+ Utility
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ruler Professional
Transform your iOS device into a versatile measuring tool. Accurately measure lengths in both centimeters and inches using on-screen markers. Ideal for quick, on-the-go measurements.
- Device as a ruler
- Metric and imperial units
- Adjustable measurement markers
- Real-time distance display
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Turn your iPod Touch, iPhone or iPad into a ruler! You want to measure in centimeters? or inches? We support both the metric and English systems. You want to measure the length of an object? You can move the two red lines in the app and the distance between the two lines will be displayed to you immediately!
Ruler+ Utility
Transform your smartphone into a versatile measuring tool. Instantly measure the length of objects using your phone's screen, with options for fixed or scroll modes. Save your measurements and choose between centimeters or inches for precise results.
- Smartphone ruler
- Fixed and scroll measurement modes
- Save measurements
- Centimeter and inch support
- Fine-tune scale
- Intuitive interface
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This app transforms your smartphone into a handy ruler. Whenever you’re curious about the length of something, you can measure it instantly with just your smartphone! From a pencil on your desk to the thickness of a book, 'Ruler' is perfect for quickly checking lengths. Without any complex explanations or difficult features, just open the app and measure according to the scale. Its intuitive interface allows anyone to measure quickly and accurately. Measurement methods: 1) Fixed Ruler: Place the object you want to measure on your smartphone, touch the screen with your finger, and move it to the end of the object to measure its length. 2) Scroll Ruler: Use this method to measure objects longer than your smartphone. Place your smartphone next to the object, hold it with your thumb and middle finger, touch the screen with your index finger, and move the phone gradually to measure the length. Main Features: - Easily save the measurements you take - Measure in both centimeters (cm) and inches (inch) - Fine-tune the scale for more precise measurements - Choose between fixed and scroll modes depending on your needs Never worry about not having a ruler again. With 'Ruler', you can measure anything conveniently at any time. Experience smart measurement now!
Screenshots
Verdict
The clearest difference is ads: Ruler Professional at none against Ruler+ Utility's shown. Ruler Professional also leads on update cadence (every 6 months vs every 40 months) and monetization model (free vs free with in-app purchases). On price, ratings volume, 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. Ruler Professional sells 1 one-off in-app purchase and Ruler+ Utility sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Ruler Professional holds the better App Store score, 3.3 against 3.0. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews point the same way: 57% of Ruler Professional's written reviews are positive against 47% of Ruler+ Utility's.
Ruler Professional ships an update every 6 months, Ruler+ Utility every 40 months. The most recent releases landed on June 2, 2026 and September 3, 2026 respectively.
| Parameter | Ruler Professional | Ruler+ Utility |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (3 ratings) — better | 3.0 (2 ratings) |
| Positive reviews | 57.1% of reviews — better | 46.7% of reviews |
| Number of ratings | 3 — better | 2 |
| Update frequency | Every 6 months — better | Every 40 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 7 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | KBIC International Ltd | Kyungjin Lee |
Customer experience
Ruler Professional
Ruler+ Utility
In-app purchases
Ruler Professional
- Ad Removal$0.99
Ruler+ Utility
- Remove Ads$1.99
Questions
Is Ruler Professional free?
Is Ruler+ Utility free?
Which has better reviews, Ruler Professional or Ruler+ Utility?
Do Ruler Professional or Ruler+ Utility have ads?
Which is updated more often, Ruler Professional or Ruler+ Utility?
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