Comparison

PixelCalc vs Screenshot Pixel Measure Tool

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

Head to head
About

PixelCalc

This tool helps graphic designers and others convert image dimensions between pixels and inches at various resolutions. It also features a proportional calculator for accurate resizing and reference charts for print sizes and camera settings.

Highlights
  • Pixel to Inch conversion
  • Inch to Pixel conversion
  • Resolution adjustment
  • Proportional calculator for resizing
  • Print size reference charts
  • Camera shutter speed chart
Features
Read full description

PixelCalc is a very convenient tool for anyone working with digital images, whether from a Camera, scanner or other input device. It is especially useful for graphic designers who work with both Web and Print media. Either of these two areas of media frequently require conversions from Pixels to Inches and Inches to Pixels along with a desired Resolution (i.e. hi-res, medium-res or low-res). Now includes a Proportional Calculator and useful Reference Charts. Proportional Calculator The Proportional Calculator will instantly calculate enlargements or reductions of images, photos, artwork, layouts, or any kind of design. Basically, anything that needs to be resized accurately while maintaining perfect proportions, the Proportional Calculator will do it. Contains the following handy reference charts: -Maximum Print Size per Megapixels (different resolutions) -Maximum Print Sizes (in inches) by Megapixels @ 300ppi -Shutter Speed Chart (Useful camera tool for perfect shots!) -See the charts in the app for detailed reference information

About

Screenshot Pixel Measure Tool

Precisely measure dimensions, angles, and areas on any image. Utilize AI-powered features for automatic scaling, edge detection, and object dimension analysis. Export your annotated measurements as PDF or PNG files.

Highlights
  • Pixel-perfect measurement tools
  • AI-powered auto-scaling and edge detection
  • Protractor for angle measurement
  • Area calculation
  • Color analysis and extraction
  • Export annotations as PDF/PNG
  • Apple Pencil support
Features
Read full description

Screen Ruler is the ultimate pixel-perfect measurement tool for screenshots, photos, blueprints, floor plans, and any image. Whether you're a UI designer checking spacing, an architect measuring floor plans, or an engineer verifying dimensions — Screen Ruler gives you precision tools right on your iPhone and iPad. PRECISION MEASUREMENT TOOLS • Side Rulers — Four-sided rulers along image edges with configurable origin corner • Freehand Ruler — Drag, rotate, and position anywhere with 15° angle snapping • Protractor — Measure angles with pinch, pan, and rotate gestures • Grid Overlay — Adjustable grid lines with customizable thickness and opacity • Floating Crosshair — Always-visible position tracker with real-time coordinates • Multi-Point Distance — Tap multiple points to measure paths and cumulative distances • Area Measurement — Draw polygons to calculate enclosed area in any unit SMART CALIBRATION • Draw-to-Calibrate — Draw a reference line on any image and enter its real-world length. The app auto-calculates the scale for all measurements • Multiple Reference Points — Set different scales for different regions of the same image • Preset Units — Pixels (1x, 2x, 3x), Centimeters, Millimeters, Inches, Picas • Custom Ratio — Define any pixel-to-unit ratio for specialized workflows AI-POWERED FEATURES • Auto-Scale Detection — Automatically detects known objects (credit cards, coins, rulers, A4 paper) and calibrates the measurement scale • Edge Detection — Snap measurements to detected edges and boundaries for pixel-perfect accuracy • OCR Scale Reading — Reads scale legends on blueprints and maps to auto-configure measurements • Object Dimension Detection — Automatically detects objects and draws dimension lines • Perspective Correction — Straighten angled photos for more accurate measurements • Smart Suggestions — AI recommends measurement units and tools based on image type • Color Palette Extraction — Extract dominant colors with WCAG contrast compliance checking COLOR ANALYSIS • Magnifying Glass — 3x magnified view with crosshair for precise pixel targeting • RGB & HEX Values — Instant color code readout at any point • Pixel Coordinates — See exact X/Y position relative to any corner origin • Scaled Coordinates — View coordinates in your chosen measurement unit ANNOTATIONS & EXPORT • Measurement Annotations — Draw lines, rectangles, and circles with persistent dimension labels • Angle Annotations — Measure and label angles between any two lines • Auto-Labeling — AI suggests meaningful names for your measurements • Export as PDF or PNG — Save annotated images with all measurement data • Measurement History — Save sessions with calibration data for later reference WORKFLOW & PRODUCTIVITY • Measurement Templates — Preset workflows for common tasks (Room Dimensions, UI Spacing, PCB Layout) • Image Overlay — Compare two images with adjustable transparency • Apple Pencil Support — Draw precision measurement lines on iPad • Comparison Mode — Side-by-side synchronized view for before/after analysis • AI Measurement Assistant — Get help with unit conversions, standards, and best practices CUSTOMIZATION • Theme Colors — Personalize with custom color themes • Adjustable Opacity — Fine-tune visibility of rulers, grids, and protractor • Ruler Position — Set measurement origin to any corner • Grid Thickness — Choose from 5 thickness levels WORKS WITH ANY IMAGE • Screenshots — Auto-loads your latest screenshot • Photo Library — Browse and select any photo • Camera — Capture photos directly for measurement • Files — Import images from the Files app • 3D Touch — Quick action to open latest screenshot Localized in 40+ languages including English, Spanish, French, German, Japanese, Chinese, Arabic, Hindi, Portuguese, Korean, and many more. PERFECT FOR Designers • Developers • QA • Digital Artists • Crafters • Photographers • Students • Architects • Content Creators Privacy Policy https://infoenum.com/mobile_app_privacy_policy.html

Screenshots

PixelCalc4 screens
Screenshot Pixel Measure Tool4 screens

Verdict

The call

The clearest difference is price: Screenshot Pixel Measure Tool at Free against PixelCalc's $2.99. Screenshot Pixel Measure Tool also leads on update cadence (every 3 weeks vs every 3 months) and review sentiment (55% vs 42%). PixelCalc's advantage is in-app purchases (none vs 6) and iOS requirement (11.0 vs 15.0). On ads 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

CostPrice · In-app purchases · Ads · Monetization

Screenshot Pixel Measure Tool is free to download; PixelCalc costs $2.99 up front. Screenshot Pixel Measure Tool sells 6 in-app purchases, starting at $0.99 per month. PixelCalc asks for nothing beyond the download.

UpkeepUpdate frequency

PixelCalc ships an update every 3 months, Screenshot Pixel Measure Tool every 3 weeks. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.

Scorecard6 real differences · 4 level
PixelCalc versus Screenshot Pixel Measure Tool: the parameters behind the verdict, then further details
ParameterPixelCalcScreenshot Pixel Measure Tool
Price$2.99Free — better
Rating—4.1 (29 ratings) — better
Positive reviews41.7% of reviews54.5% of reviews — better
Number of ratings—29 — better
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.0
Further details — not scored
Size4 MB35 MB
Age rating4+4+
DeveloperJohn LullieInfoEnum Software Systems

Customer experience

PixelCalc

Written reviews12 reviews
Positive41.7%
Neutral16.7%
Negative41.7%

Screenshot Pixel Measure Tool

All ratings29 ratings
Positive75.9%
Neutral3.4%
Negative20.7%
Written reviews11 reviews
Positive54.5%
Neutral0.0%
Negative45.5%

In-app purchases

None

PixelCalc

No in-app purchases

6 purchases

Screenshot Pixel Measure Tool

Subscriptions3
  • Monthly3 Days trial$0.991 Month
  • Yearly7 Days trial$9.991 Year
  • Yearly Special1 Year trial$29.991 Year
One-time3
  • Non Renewable subscription$1.99
  • Non Renewable subscription$19.99
  • Lifetime$49.99

Questions

Is PixelCalc free?
PixelCalc costs $2.99, with no in-app purchases.
Is Screenshot Pixel Measure Tool free?
Screenshot Pixel Measure Tool is free to download, with in-app purchases available.
Do PixelCalc or Screenshot Pixel Measure Tool have ads?
Neither PixelCalc nor Screenshot Pixel Measure Tool shows ads.
Which is updated more often, PixelCalc or Screenshot Pixel Measure Tool?
PixelCalc ships an update every 3 months, and Screenshot Pixel Measure Tool every 3 weeks. Most recently, PixelCalc was updated on October 8, 2026 and Screenshot Pixel Measure Tool on October 24, 2026.

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