Comparison

Unit Convert Master vs Document Reader & PDF View

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

Head to head
About

Unit Convert Master

Easily convert between over 100 measurement units across 15 categories. This app offers a user-friendly interface, offline functionality, and a history of your conversions for quick access. Ideal for students, professionals, and everyday users needing precise calculations.

Highlights
  • 15+ conversion categories
  • 100+ measurement units
  • Intuitive interface with themes
  • Custom keyboard for input
  • Conversion history with search
  • Offline functionality
Features
Read full description

Transform complex unit conversions into simple tasks with our comprehensive Unit Converter app. Whether you're a student, professional, scientist, engineer, traveler, or home cook, this app has you covered with precise conversions across multiple categories. FEATURES: - 15+ conversion categories including Length, Mass, Temperature, Time, Volume, Area, Speed, Energy, Pressure, Angle, Data Size, Power, Frequency, Radiation, Fuel Economy, and Cooking - 100+ measurement units from common everyday measures to specialized scientific units - Beautiful, intuitive interface with customizable themes - Custom keyboard for easy and accurate input - Swap button to quickly reverse conversion direction - Comprehensive conversion history with search functionality - Copy results with a single tap - Works offline - no internet required CONVERSION CATEGORIES: - Length: meters, feet, inches, miles, light years, and more - Mass: kilograms, pounds, ounces, tons, and specialized units - Temperature: Celsius, Fahrenheit, Kelvin - Time: seconds to years and everything in between - Volume: liters, gallons, cubic meters, and cooking measurements - Area: square meters, acres, square feet, even Japanese tatami - Speed: mph, km/h, m/s, knots, speed of light, and sound - Energy: joules, calories, kilowatt-hours, BTU - Pressure: pascals, bars, psi, atmospheres - Angle: degrees, radians, minutes of arc - Data: bytes, kilobytes up to petabytes - Power: watts, horsepower, BTU/hour - Frequency: hertz, rpm, cycles per second - Radiation: becquerels, curies, grays, rads - Fuel Economy: mpg, km/L, L/100km - Cooking: all essential kitchen measurements

About

Document Reader & PDF View

Features
Read full description

Read almost any document on your iPhone or iPad — fully offline. Fexo Files Reader turns your device into a clean, private library for every file you own. Bring in PDFs, Word, Excel, PowerPoint, EPUB books, text, images and more, and open them in a calm, distraction-free reader that quietly remembers exactly where you left off. Everything happens on your device: no account, no cloud upload, and no internet needed for the core features. Fexo organizes your files automatically into tidy shelves by type, with live counts and sizes, so the document you need is always one tap away. And when a PDF needs work, the built-in Fexo toolkit handles it right on the device. KEY FEATURES •⁠ ⁠Read almost any format: PDF, Word, Excel, PowerPoint, EPUB, text, RTF, CSV, HTML, XML, JSON, Markdown and images •⁠ ⁠Library auto-sorted by file type, with search and sorting by date, name, size or type in list or grid view •⁠ ⁠Import from the Files app or connect a whole folder that re-scans itself automatically •⁠ ⁠Open in Fexo from any app's share sheet or Open With •⁠ ⁠Distraction-free PDF reader with full-text search, password unlock and silent resume to your last page •⁠ ⁠Native Office preview for Word, Excel and PowerPoint, including legacy .doc, .xls and .ppt •⁠ ⁠EPUB reader with chapters, table of contents, in-book search and typography controls •⁠ ⁠Merge, split, compress and password-protect PDFs on-device with AES-256 encryption •⁠ ⁠OCR text extraction from images and PDF pages across Latin, Arabic, Chinese, Devanagari and Japanese or Korean scripts •⁠ ⁠Print any document through the native iOS print dialog •⁠ ⁠Six reading themes, keep-screen-on, recents and favourites •⁠ ⁠Five languages with full right-to-left support: English, Chinese, Hindi, Spanish and Arabic Why choose Fexo? Because your documents stay yours. Fexo keeps every file on your device, with no sign-up and nothing sent to a server. From the Fexo team, built for people who just want to open a file and read. Download Fexo Files Reader today and keep your whole library in one private place. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Unit Convert Master2 screens
Document Reader & PDF View4 screens

Verdict

The call

The clearest difference is ads: Document Reader & PDF View at none against Unit Convert Master's shown. Document Reader & PDF View also leads on iOS requirement (15.5 vs 18.2). 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.

Scorecard2 real differences · 7 level
Unit Convert Master versus Document Reader & PDF View: the parameters behind the verdict, then further details
ParameterUnit Convert MasterDocument Reader & PDF View
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 4 months—
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.215.5 — better
Further details — not scored
Size4 MB106 MB
Age rating4+4+
DeveloperMizuki HoshidaFexo FZC LLC

In-app purchases

None

Unit Convert Master

No in-app purchases

None

Document Reader & PDF View

No in-app purchases

Questions

Is Unit Convert Master free?
Unit Convert Master is free to download, with no in-app purchases.
Is Document Reader & PDF View free?
Document Reader & PDF View is free to download, with no in-app purchases.
Do Unit Convert Master or Document Reader & PDF View have ads?
Unit Convert Master shows ads; Document Reader & PDF View does not.

Other comparisons