Ruler vs iRuler Plus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ruler
Measure lengths, widths, and diagonals accurately using your phone. Switch between metric and imperial units, and utilize flexible starting points for precise measurements in any direction. Features auto-calibration for minimal error and a screen lock to preserve readings.
- Multi-mode measurement (CM, MM, Inches, Fractions)
- Flexible starting points
- Full-direction measurement (horizontal, vertical, diagonal)
- Auto-calibration for accuracy
- Screen lock for preserving readings
- Ad-free VIP option
Read full descriptionHide full description
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. * Flexible starting points: Measure from screen edges or device edges for diverse scenarios. * Full-direction coverage: Horizontal, vertical, or diagonal measurements. Paired with the 2.54m ultra-long scroll ruler, no corner is beyond reach! ► Zero-error Guarantee * Auto-calibration tech: Dynamically adjusts based on device model, ensuring ≤1% error rate. * Screen lock: Freeze measurements instantly to prevent accidental touches or slips. ► Contact Us * Email: ceo@noadit.com
iRuler Plus
Measure lengths in centimeters or inches with this virtual ruler app. It offers a user-friendly interface with customizable color themes and styles. Easily measure small objects or long items up to 120 cm.
- Measure in cm or inches
- Up to 120 cm scroll ruler
- Measure small objects with stick ruler
- Multiple ruler themes and colors
- Easy to use interface
Read full descriptionHide full description
iRuler Plus is a Free application that helps you measure length in cm or inches. This app is easy to use and has a beautiful design with so many colors and styles. How to use it? 1. Place your iPhone alongside the object. 2. Move the phone while touching the screen. Key feature: - Very long scroll ruler, up to 120 cm in length. - Measure small object like a coin,... using stick ruler with 2 slider - Many ruler themes with beautiful color, we'll add more themes in the next version
Screenshots
Verdict
The clearest difference is rating: Ruler at 3.5 against iRuler Plus's 1.7. Ruler also leads on review sentiment (40% vs 0%) and in-app purchases (none vs 1). iRuler Plus's advantage is iOS requirement (9.0 vs 17.0). On price, ads, monetization model 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. iRuler Plus sells 1 one-off in-app purchase. Ruler asks for nothing beyond the download.
Ruler holds the better App Store score, 3.5 against 1.7. That said, the two scores are not equally well evidenced: Ruler has 79 ratings behind it against 15, so its average is the more settled of the two. Written reviews point the same way: 40% of Ruler's written reviews are positive against 0% of iRuler Plus's.
Ruler ships an update every 3 weeks, iRuler Plus every 52 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.
| Parameter | Ruler | iRuler Plus |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (79 ratings) — better | 1.7 (15 ratings) |
| Positive reviews | 40.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 79 — better | 15 |
| Update frequency | Every 3 weeks — better | Every 52 months |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Noadit, Inc. | CONG DUC TRAN |
Customer experience
Ruler
iRuler Plus
Bugs and requests
Ruler
Reported bugs
9 issues- Ads pop up constantly, making app unusable
- Ads overlay the ruler/measurements
- App crashes constantly
- Black screen issue
- Inaccurate measurements (especially inches)
Show 4 moreShow fewer
- Paid no-ad version no longer works
- Calibration issues on specific devices
- Numbers are upside down
- Doesn't work with 10.5" iPad
Requested features
12 requests- Option to remove ads via one-time purchase
- Ability to calibrate the ruler
- Offset crosshairs to see numbers
- Fractional inch (1/8, 1/16) display option
- Option to hide ruler digits
Show 7 moreShow fewer
- Support for larger screen sizes (e.g., 10.5" iPad)
- Ability to scroll and see more than screen size
- Automatic screen size detection
- Landscape orientation support
- Add more measurement tools (plumb bob, seismometer, etc.)
- Option to hide calculator and other unwanted features
- Add click on every 1/10 of an inch in setup
iRuler Plus
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Ruler
No in-app purchases
iRuler Plus
- iRuler Premium$1.99
