Comparison

Ruler with Caliper, Protractor vs Intervals

Price, ratings, monetisation and update history for both apps, side by side — 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

Intervals

This app helps you manage work and rest periods with customizable timers. It features a visual countdown, interval tracking, and audible alerts to keep you focused and balanced during workouts, study sessions, or tasks.

Highlights
  • Customizable work and rest intervals
  • Round and total time calculation
  • Visual circular timer
  • Pause, resume, and navigate controls
  • Audible chime alerts
  • Progress indicators
Features
Read full description

Intervals: Your Ultimate Time Management Tool Take control of your time with Intervals, the ultimate app for managing work and rest periods. Whether you're working out, studying, or focusing on tasks, Intervals helps you stay productive and balanced. Customizable Intervals: - Work Time: Set the duration for your work periods to stay focused and productive. - Rest Time: Define your rest intervals to ensure you get the necessary breaks. - Rounds: Specify the number of sets you want to complete for an efficient routine. - Total Time Calculation: Automatically calculates and displays the total time for your configured intervals and sets.   User-Friendly Timer: - Visual Timer: A sleek circular timer visually indicates the remaining time for the current interval. - Interval Display: Clearly shows the current interval type (work or rest) and the remaining time. - Control Buttons: Easily pause, resume, or navigate through intervals with intuitive controls (previous, restart, next). - Progress Indicators: Keep track of the number of rounds completed with simple progress indicators. Alerts and Notifications: - Chime Alert: Enable an audible chime to notify you when an interval is over, keeping you on track without constantly checking your device. Easy Setup and Start: - Quick Configuration: Set up your intervals quickly and start your session with a single tap on the prominent "Go" button. Versatile Usage: Ideal for various activities such as workouts, study sessions, focus tasks, and more. With Intervals, you can optimize your time management, stay productive, and maintain a healthy balance between work and rest. Download Intervals today and take the first step towards better productivity and time management!

Screenshots

Ruler with Caliper, Protractor4 screens
Intervals3 screens

Verdict

The call

The clearest difference is review sentiment: Intervals at 100% against Ruler with Caliper, Protractor's 0%. Intervals also leads on in-app purchases (none vs 3) and ads (none vs shown). On price, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Ruler with Caliper, Protractor ships an update every 28 months, Intervals every 2 weeks. The most recent releases landed on August 13, 2026 and September 18, 2026 respectively.

Scorecard5 real differences · 5 level
Ruler with Caliper, Protractor versus Intervals: the parameters behind the verdict, then further details
ParameterRuler with Caliper, ProtractorIntervals
PriceFreeFree
Rating—5.0 (3 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings—3 — better
Update frequencyEvery 28 monthsEvery 2 weeks — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.5
Further details — not scored
Size6 MB1 MB
Age rating4+4+
DeveloperBhavinkumar SatashiyaAydin Metel

Customer experience

Ruler with Caliper, Protractor

Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Intervals

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Ruler with Caliper, Protractor

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

Intervals

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 Intervals free?
Intervals is free to download, with no in-app purchases.
Do Ruler with Caliper, Protractor or Intervals have ads?
Ruler with Caliper, Protractor shows ads; Intervals does not.
Which is updated more often, Ruler with Caliper, Protractor or Intervals?
Ruler with Caliper, Protractor ships an update every 28 months, and Intervals every 2 weeks. Most recently, Ruler with Caliper, Protractor was updated on August 13, 2026 and Intervals on September 18, 2026.

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