Comparison

Ruler with Caliper, Protractor vs Cetvel Ruler

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

Head to head
About

Ruler with Caliper, Protractor

This app transforms your device into a precise digital measuring tool. It offers accurate measurements for various objects and distances using your camera, with multiple units and offline functionality.

Highlights
  • Accurate measurements via camera
  • Measure small objects to large distances
  • User-friendly interface
  • Multiple measurement units (inches, cm)
  • Virtual ruler on screen
  • Save and share measurements
  • Offline accessibility
Features
Read full description

# Ruler – Digital Ruler & Tape Measure Turn your smartphone into a precise measuring tool with **Ruler – Digital Ruler & Tape Measure**. Whether you're measuring small objects, checking angles, finding distances, or ensuring a perfectly level surface, this all-in-one toolkit provides everything you need in one easy-to-use app. Perfect for students, engineers, architects, designers, DIY enthusiasts, woodworkers, and everyday use. ## Features **Digital Ruler** Measure the length and width of objects directly on your phone screen with accurate calibration. **Tape Measure** Quickly measure objects using your device with an easy-to-read digital measuring interface. **Caliper** Measure thickness, internal diameter, external diameter, and depth with precision. Great for mechanical parts, jewellery, hardware, and engineering tasks. **Pinpoint Measurement** Measure the exact distance between two fingers on your screen for quick and convenient measurements. **Spirit Level** Check whether surfaces are perfectly horizontal or vertical using your phone's built-in sensors. Ideal for hanging pictures, installing shelves, and DIY projects. **Protractor** Measure and draw angles in degrees with an accurate digital protractor for school, construction, and design work. **Calibration Tool** Calibrate the ruler to your device for reliable and precise measurements across different screen sizes. ## Why Choose Ruler? * Fast and easy to use * Accurate digital measurements * Multiple measuring tools in one app * Clean and intuitive interface * Suitable for home, school, office, workshop, and construction * Works on most iOS devices Whether you're measuring furniture, checking angles, calculating dimensions, or levelling surfaces, **Ruler – Digital Ruler & Tape Measure** gives you the essential tools you need wherever you go. Download now and carry a complete measuring toolkit in your pocket. Privacy Policy : https://forms.gle/dnBUgnpqw4AREio97 Terms of Use : https://forms.gle/2uy2JqJa2JjkTZpo8

About

Cetvel Ruler

Features
Read full description

Cetvel Pro is a practical precision tool for everyday measuring. FEATURES β€’ 50 cm ruler with clear centimeter and inch scales β€’ Draggable start/end markers for quick distance checks β€’ Fine calibration for better real-world accuracy β€’ Separate calibration support for portrait and landscape use β€’ Built-in converter (cm ↔ inch) β€’ Dual-axis angle level for horizontal and vertical alignment β€’ Fast, clean interface designed for one-hand use USE CASES β€’ Home, office, school, workshop, and DIY tasks β€’ Quick alignment checks and small object measurements β€’ Daily measurements without extra hardware PRIVACY Cetvel Pro does not require an account and does not collect personal data. Calibration and preferences are stored on-device.

Screenshots

Ruler with Caliper, Protractor4 screens
Cetvel Ruler4 screens

Verdict

The call

The clearest difference is in-app purchases: Cetvel Ruler at none against Ruler with Caliper, Protractor's 3. Cetvel Ruler also leads on ads (none vs shown) and update cadence (fortnightly vs every 28 months). On price, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Ruler with Caliper, Protractor sells 3 in-app purchases, starting at $3.99 per 7 days. Cetvel Ruler asks for nothing beyond the download.

UpkeepUpdate frequency

Ruler with Caliper, Protractor ships an update every 28 months, Cetvel Ruler fortnightly. The most recent releases landed on November 2, 2026 and October 25, 2026 respectively.

Scorecard3 real differences Β· 5 level
Ruler with Caliper, Protractor versus Cetvel Ruler: the parameters behind the verdict, then further details
ParameterRuler with Caliper, ProtractorCetvel Ruler
PriceFreeFree
Positive reviews0.0% of reviewsβ€”
Update frequencyEvery 28 monthsFortnightly β€” better
AdsYesNo β€” better
In-app purchasesYesNo β€” better
MonetizationFree with in-app purchasesβ€”
DevicesiPhone, iPadiPhone, iPad, iPod β€” better
Requires iOS16.015.0 β€” better
Further details β€” not scored
Size6 MB2 MB
Age rating4+4+
DeveloperBhavinkumar SatashiyaOzkan Kayhan

In-app purchases

3 purchases

Ruler with Caliper, Protractor

Subscriptions2
  • Weekly$3.997 Days
  • Yearly$39.991 Year
One-time1
  • Lifetime$49.99
None

Cetvel Ruler

No in-app purchases

Questions

Is Ruler with Caliper, Protractor free?
Ruler with Caliper, Protractor is free to download, with in-app purchases available.
Is Cetvel Ruler free?
Cetvel Ruler is free to download, with no in-app purchases.
Do Ruler with Caliper, Protractor or Cetvel Ruler have ads?
Ruler with Caliper, Protractor shows ads; Cetvel Ruler does not.
Which is updated more often, Ruler with Caliper, Protractor or Cetvel Ruler?
Ruler with Caliper, Protractor ships an update every 28 months, and Cetvel Ruler fortnightly. Most recently, Ruler with Caliper, Protractor was updated on November 2, 2026 and Cetvel Ruler on October 25, 2026.

Other comparisons