Comparison

Unit Converter vs XS Modifier Coder

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 app offers a powerful and user-friendly unit converter with 16 categories, including currency, length, and temperature. It allows for custom unit lists and provides live exchange rate updates for 148 currencies. Unlock all features with a one-time in-app purchase.

Highlights
  • 16 conversion categories
  • Custom unit lists
  • Live currency exchange rates
  • 148 world currencies supported
  • User-friendly interface
Features
Read full description

Explore our elegant and powerful unit converter with 16 categories, covering almost every unit you can think of. It's user-friendly and allows you to create custom unit lists for each category. Now featuring LIVE exchange rate updates for 148 world currencies! Categories include: Angle Area Cooking Currency Data Length Mileage Power Pressure Speed Temperature Time Volume Weight Men's shoe size Women's shoe size Note that only four categories are unlocked by default. To access all 16, simply purchase the "Pro Features" In-App. Stay connected for up-to-date currency exchange rates; an internet connection is required. Elevate your conversion experience with our versatile unit converter.

About

XS Modifier Coder

Features
Read full description

XS Modifier Coder helps medical coders, billers, and healthcare professionals quickly identify CPT code combinations that may require modifier XS based on CMS National Correct Coding Initiative (NCCI) Procedure-to-Procedure (PTP) edit data. Features: • Uses current CMS NCCI PTP edit data • Fast CPT code entry and analysis • Quick CPT code buttons for commonly used codes • Customizable quick code list • Valid CPT code verification • Highlights CPT codes that may require modifier XS • Simple and easy-to-use interface • Designed for dermatology, surgical, and procedural coding workflows This application is intended for educational and coding reference purposes only. Users are responsible for verifying payer-specific requirements and ensuring coding compliance. CMS guidance and payer policies may change over time. This application is not affiliated with, endorsed by, or sponsored by the Centers for Medicare & Medicaid Services (CMS).

Screenshots

Unit Converter3 screens
XS Modifier Coder4 screens

Verdict

The call

The clearest difference is price: Unit Converter at Free against XS Modifier Coder's $0.99. Unit Converter also leads on iOS requirement (17.6 vs 26.5). XS Modifier Coder's advantage is in-app purchases (none vs 1) and update cadence (monthly vs every 3 months). 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

Unit Converter is free to download; XS Modifier Coder costs $0.99 up front. Unit Converter sells 1 one-off in-app purchase. XS Modifier Coder asks for nothing beyond the download.

UpkeepUpdate frequency

Unit Converter ships an update every 3 months, XS Modifier Coder monthly. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.

Scorecard4 real differences · 6 level
Unit Converter versus XS Modifier Coder: the parameters behind the verdict, then further details
ParameterUnit ConverterXS Modifier Coder
PriceFree — better$0.99
Rating4.6 (16K ratings) — better—
Positive reviews33.9% of reviews—
Number of ratings16K — better—
Update frequencyEvery 3 monthsMonthly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.6 — better26.5
Further details — not scored
Size11 MB50 MB
Age rating4+4+
DeveloperTue Nguyen MinhJoseph Gadzia

Bugs and requests

Unit Converter

Reported bugs

3 issues
  • Conversion results not always accurate
  • App freezes or crashes on some devices
  • Purchased features not always accessible

Requested features

4 requests
  • Add calculator functionality
  • Improve currency conversion
  • Provide more unit categories
  • Allow creating custom formulas

XS Modifier Coder

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Unit Converter

One-time1
  • Pro Features$2.99
None

XS Modifier Coder

No in-app purchases

Questions

Is Unit Converter free?
Unit Converter is free to download, with in-app purchases available.
Is XS Modifier Coder free?
XS Modifier Coder costs $0.99, with no in-app purchases.
Do Unit Converter or XS Modifier Coder have ads?
Neither Unit Converter nor XS Modifier Coder shows ads.
Which is updated more often, Unit Converter or XS Modifier Coder?
Unit Converter ships an update every 3 months, and XS Modifier Coder monthly. Most recently, Unit Converter was updated on October 24, 2026 and XS Modifier Coder on October 10, 2026.

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