Comparison

Screen Ruler vs Tap & Drill Pro

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

Head to head
About

Screen Ruler

Turn your iPhone or iPad into a precise measuring tool. Easily measure lengths in centimeters or inches with features like magnifier mode and haptic feedback. Ideal for daily tasks, office use, DIY projects, and on-the-go measurements.

Highlights
  • Dual units (cm/inches)
  • Precision calibration
  • Magnifier mode
  • Haptic feedback
  • Clean interface
  • Save and label measurements
Features
Read full description

Turn your iPhone or iPad into a calibratable digital ruler for measuring small objects directly on the screen. Screen Ruler supports centimeters and inches, magnifier-assisted alignment, and haptic feedback. Measure Small Objects on Your Screen Use Screen Ruler for stationery, frames, craft materials, and other small objects that fit along your device screen. Place the object directly on the screen, move the measurement marks to its edges, and read the length. Core Features • Calibratable ruler: Match the scale to an object of known length and save calibration for your device. • CM and inch scales: Switch between centimeters and inches for everyday measurements. • Magnifier assist: Align measurement marks with object edges more confidently. • Haptic feedback: Feel subtle feedback while adjusting the marks. How to Get More Reliable Results For best results, place the object directly on the screen and check the scale against a known length. Calibrate the ruler if you notice an offset. Accuracy and Limitations Screen Ruler is designed for short, everyday measurements. Accuracy depends on device calibration, screen placement, and how precisely the marks are aligned. It does not use the camera or AR and is not intended for measuring rooms or large objects. Feedback: ankek1er@gmail.com

About

Tap & Drill Pro

Features
Read full description

Tap & Drill Pro Calc is a precise and reliable calculator designed for machinists, engineers, and workshop professionals. Quickly determine the correct tap sizes, drill sizes, and thread specifications for your projects. Whether you're working in manufacturing, metalworking, or DIY machining, this app simplifies complex calculations and helps reduce costly errors. Key Features: • Tap size calculator for accurate threading • Drill size recommendations for multiple standards • Supports metric and imperial units • Fast and easy-to-use interface • Designed for machinists, engineers, and students • Improves accuracy and efficiency in workshop tasks Get the right measurements every time and streamline your workflow with Tap & Drill Pro Calc.

Screenshots

Screen Ruler1 screens
Tap & Drill Pro4 screens

Verdict

The call

The clearest difference is price: Screen Ruler at Free against Tap & Drill Pro's $2.99. Tap & Drill Pro's advantage is in-app purchases (none vs 2) and ads (none vs shown). On 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

Screen Ruler is free to download; Tap & Drill Pro costs $2.99 up front. Screen Ruler sells 2 one-off in-app purchases. Tap & Drill Pro asks for nothing beyond the download.

Scorecard3 real differences · 7 level
Screen Ruler versus Tap & Drill Pro: the parameters behind the verdict, then further details
ParameterScreen RulerTap & Drill Pro
PriceFree — better$2.99
Rating3.7 (24 ratings) — better—
Positive reviews54.8% of reviews—
Number of ratings24 — better—
Update frequencyEvery 3 months—
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.013.0
Further details — not scored
Size19 MB22 MB
Age rating+44+
Developer向阳 杨Shraddhaben Parmar

In-app purchases

2 purchases

Screen Ruler

One-time2
  • Ads-free experience$1.99
  • Support for a cup of coffee$2.99
None

Tap & Drill Pro

No in-app purchases

Questions

Is Screen Ruler free?
Screen Ruler is free to download, with in-app purchases available.
Is Tap & Drill Pro free?
Tap & Drill Pro costs $2.99, with no in-app purchases.
Do Screen Ruler or Tap & Drill Pro have ads?
Screen Ruler shows ads; Tap & Drill Pro does not.

Other comparisons