Comparison

Unit Converter vs ScanPDF+

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

Head to head
About

Unit Converter

This tool provides fast and accurate conversions across 14 common physical unit categories. It supports metric, imperial, and traditional Chinese units, with customizable display styles for personalized use. Ideal for everyday and professional conversion needs.

Highlights
  • 14 unit categories
  • Metric, imperial, and Chinese units
  • Customizable display styles
  • Accurate conversions
  • Supports length, area, volume, mass, temperature, and more
Features
Read full description

Unit Converter is a powerful tool for fast and accurate conversions between various units. It handles both everyday and professional units with ease. Using advanced algorithms, it ensures precise results and offers customizable display styles to suit user needs. *** Features *** ► Supports Multiple Unit Categories Unit Converter covers 14 commonly used physical unit categories and supports multiple unit systems, including metric, imperial, and Chinese traditional units, catering to conversion needs in various scenarios. Supported categories include: * Length (e.g., meters, feet, inches) * Area (e.g., square meters, square feet, mu) * Volume (e.g., liters, gallons, cubic meters) * Mass (e.g., kilograms, pounds, ounces) * Temperature (e.g., Celsius, Fahrenheit, Kelvin) * Pressure (e.g., pascals, atmospheres, millimeters of mercury) * Power (e.g., watts, horsepower, kilowatts) * Energy (e.g., joules, calories, kilowatt-hours) * Density (e.g., kilograms per cubic meter, pounds per cubic foot) * Force (e.g., newtons, pound-force) * Time (e.g., seconds, minutes, hours) * Speed (e.g., meters per second, kilometers per hour, miles per hour) * Data Storage (e.g., bytes, kilobytes, megabytes) * Angle (e.g., degrees, radians, gradians) ► Customizable Unit Display Styles To meet users' personalized needs, Unit Converter offers three different unit display styles, allowing users to freely choose based on their preferences: * Full Display (e.g., meters/second (m/s)) * Simplified Display (e.g., meters/second) * Symbol Display (e.g., m/s) ► Contact Us * Email: ceo@noadit.com

About

ScanPDF+

Features
Read full description

ScanPDF+ is a professional document scanning and PDF management tool that transforms your iPhone into a portable scanner. Why Choose ScanPDF+? 1. Professional Scanning Quality Powered by advanced iOS VisionKit technology with automatic edge detection and intelligent cropping for crystal-clear results. 2. Complete PDF Toolkit More than just scanning - full PDF creation, editing, encryption, and compression capabilities to meet all document processing needs. 3. Privacy First All document processing is done locally on your device. No cloud uploads, ensuring your sensitive information stays secure. 4. Minimalist Design Clean, intuitive interface with clear workflows. No learning curve required. 5. Continuous Updates We're committed to constant improvement with regular updates for a better user experience. Supported Languages: Simplified Chinese, Traditional Chinese, English, Spanish, French, German, Portuguese, Japanese, Korean, Arabic, Italian, Russian Download ScanPDF+ now and experience professional-grade document scanning! For questions or suggestions, please contact us through the in-app feedback feature.

Screenshots

Unit Converter4 screens
ScanPDF+4 screens

Verdict

The call

The clearest difference is ads: ScanPDF+ at none against Unit Converter's shown. ScanPDF+ also leads on update cadence (every 9 days vs every 5 weeks) and iOS requirement (13.0 vs 17.0). On price, in-app purchases 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Unit Converter ships an update every 5 weeks, ScanPDF+ every 9 days. The most recent releases landed on November 3, 2026 and November 9, 2026 respectively.

Scorecard3 real differences · 7 level
Unit Converter versus ScanPDF+: the parameters behind the verdict, then further details
ParameterUnit ConverterScanPDF+
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 5 weeksEvery 9 days — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size10 MB45 MB
Age rating4+4+
DeveloperNoadit, Inc.Hainan Yidaosan Technology Co., Ltd.

In-app purchases

None

Unit Converter

No in-app purchases

None

ScanPDF+

No in-app purchases

Questions

Is Unit Converter free?
Unit Converter is free to download, with no in-app purchases.
Is ScanPDF+ free?
ScanPDF+ is free to download, with no in-app purchases.
Do Unit Converter or ScanPDF+ have ads?
Unit Converter shows ads; ScanPDF+ does not.
Which is updated more often, Unit Converter or ScanPDF+?
Unit Converter ships an update every 5 weeks, and ScanPDF+ every 9 days. Most recently, Unit Converter was updated on November 3, 2026 and ScanPDF+ on November 9, 2026.

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