Best Ruler Inches Free Apps

245+ iOS apps curated and reviewed

3.7 avg rating
19 free apps
Updated November 2026

The best ruler inches free apps on iPhone average 3.7★ across 245+ titles — we've ranked them by what real users actually keep on their phones. Updated November 2026.

Compare top Ruler Inches Free Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Rul3rRul3rFree4.4★ (1.1K)YesYesNov 2026
2Ruler®Ruler®Free4.3★ (35K)NoYesNov 2026
3Ruler ++Ruler ++Free3.5★ (954)NoYesNov 2026
4Real Ruler - Accurate MeasureReal Ruler - Accurate MeasureFree—YesNoOct 2026
5RulerAppRulerAppFree——NoSep 2026
6Cetvel RulerCetvel RulerFree—NoNoMay 2026
7Edge RulerEdge RulerFree—NoYesSep 2026
8Ruler: Measure CM, MM & InchesRuler: Measure CM, MM & InchesFree5.0★ (2)YesYesNov 2026

Top Picks for Ruler Inches Free

Rul3r#1

Rul3r by YOYASOFT LLC

Ruler, Altimeter and More
Editor's Choice
🔧 Utilities
4.4(1.1K ratings)
FreeAdsIn-App Purchases
Rul3r screenshot 1
Rul3r screenshot 2
Rul3r screenshot 3
Rul3r screenshot 4
Rul3r screenshot 5
Rul3r screenshot 6

This utility app provides a portable ruler for on-the-go measurements. It also includes a suite of additional tools like a protractor, spirit level, and various meters for diverse measurement needs.

Ruler®#2

Ruler® by Tue Nguyen Minh

+ Photo Ruler & AR Measure
Strong Contender
🔧 Utilities
4.3😞(35K ratings)
FreeIn-App Purchases
Ruler® screenshot 1
Ruler® screenshot 2
Ruler® screenshot 3
Ruler® screenshot 4

This app provides a versatile toolkit for all your measurement needs. It includes a classic ruler, a tape measure, and a camera ruler for precise measurements. Easily switch between units and document your findings by adding measurements directly to photos.

What We Love

  • 🚀 Accurate measurements
  • 👍 Easy to use
  • 🔍 Convenient for small items
  • 📏 Useful ruler tool

Room to Improve

  • 💰 Paywall for basic features
  • ⏱️ Limited free usage time
  • 🔍 Inaccurate for larger objects
  • 🙅‍♀️ Aggressive monetization tactics
Ruler ++#3

Ruler ++ by Fapps World et Cie S.E.C.S.

Measure lengths
Worth Considering
📊 Productivity
3.5😞(954 ratings)
FreeIn-App Purchases
Ruler ++ screenshot 1

This app allows you to measure lengths accurately in both inches and centimeters. It provides a simple and straightforward tool for quick measurements.

What We Love

  • 👍 Simple and quick to use
  • 👍 Includes both metric and Imperial measures
  • 🚀 Great for wanting to measure displayed length

Room to Improve

  • 🐛 Measurements are not accurate
  • 🐛 Ruler not matching real-world measurements
  • 🐛 Ruler not scaling properly on different devices
  • 🔋 Ads make it impossible to use
  • 🔋 Constant, intrusive ads
  • 🔋 Ads with sound that can't be turned off

More Ruler Inches Free apps to explore

FAQ about Ruler Inches Free

What are the best ruler inches free apps for iPhone?
Rul3r tops our ruler inches free apps ranking as of November 2026, with a 4.4-star average from 1.1K App Store ratings, and it's free to download.
Rul3r shows ads and offers in-app purchases, according to its App Store listing as of November 2026.
We track 245+ ruler inches free apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.