Comparison

Converter X vs Shift Unit

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

Head to head
About

Converter X

This app provides real-time currency and unit conversions, along with international clothing size comparisons. It features a smart input system that understands natural language and offers AI explanations for conversions, enhancing daily productivity and travel planning.

Highlights
  • Real-time currency conversion (167 currencies)
  • Comprehensive unit conversion (201 units)
  • International clothing size conversion
  • 14 built-in utility tools
  • Smart input with natural language parsing
  • AI assistance for conversion explanations
Features
Read full description

Converter X: Currency, Unit, and Smart Tool Hub Convert faster with one app for travel, shopping, study, and daily productivity. Currency Conversion - Convert across 167 currencies, including crypto - Follow frequently updated exchange rates Comprehensive Unit Conversion - Convert 201 units across 20 categories - Solve daily and technical conversions in seconds International Clothing Size Conversion - Compare sizes across 31 clothing categories - Use mappings for 13 regions, including US, UK, EU, Brazil, and more Everyday Tools - 14 built-in tools across Converters, Calculators, Security, and Utilities - Includes Time Zone, Date, Tip, Discount, Roman Numeral, Base64, Password Generator, and more Conversion Shortcuts - Convert currencies and units in Shortcuts and reuse numeric results in your workflows Smart Input and AI Assistance - Smart Input parses natural language into conversion actions - Learn More AI explains unit conversions on compatible devices - Style Ideas suggests clothing combinations and simple looks to try, generated on your device Why Converter X - Clean and intuitive interface with portrait and landscape support - Optimized performance for currency and historical screens - Frequent quality and localization improvements Requires iOS 17.0 or later. Some AI features are available on compatible devices. Download now and experience the power of intelligent conversions! Terms of Service https://converterx.codeeze.com/terms/

About

Shift Unit

This utility app offers precise unit and currency conversions with over 1400 units across 34 categories. It supports light/dark modes, home widgets, and an independent Apple Watch app. Features include a custom keypad with calculator mode and educational Wikipedia integration.

Highlights
  • 1400+ conversion units
  • 34 categories
  • Light/dark mode support
  • Home widget
  • Apple Watch app
  • Custom keypad with calculator
  • Wikipedia integration
Features
Read full description

Shift Unit is a unit converter designed with usability and numerical precision in mind. It features 1437+ conversion units across 34 categories. It works great in light or dark mode, and as a Home Widget w/ localized number displays. Independent WatchOS app and complications. Operations can be carried out in portrait mode in simple precision (7 significant digits,) or in landscape mode in double precision (14 significant digits.) Conversion formulae use exact definitions of related entities--not approximations. Wikipedia page information can be pulled for categories and conversion units. (Look for info circle.) The custom keypad has a calculator mode, and allows to enter/edit numbers on either side of the conversion. Unit categories include Acceleration, Angle, Area, Bit Rate, Clock, Online Currencies, Data Storage, Area Density, Volumetric Density, Electric Charge, Electric Current, Energy, Volumetric Flow Rate, Force, Frequency, Fuel, Length, Luminance, Lux, Mass Flow Rate, Momentum, Power, Pressure, Radiation Dose, Radioactivity, Radiation Exposure, Speed, Temperature, Temperature Delta, Time, Torque, Typography, Volume, and Weight. Features: - One screen operation minimizing number of gestures - Numbers (digits, decimal/grouping separators, exponent)/time/country names localized to your (or any) region - Current time in 2 out of 439 world cities and see your cities pinned on a flyover map, an educational way of discovering the world through time zones - Weather conditions and forecast for time zone cities - Dedicated accessibility labels and hints for VoiceOver operations - Customizable number entry timeout allowing to enter a new number without having to clear the field. (Turned off when an accessibility feature, e.g. VoiceOver, is on) - Customizable user interface (preferred categories; user interface alignment for left/right-handed entry or 2-thumb operations) - Ability to swap units while keeping initial numerical entry - Category presets for quick change of context, including user preset - Long-press category button to remove, or add a category on the fly - Long-press number field for copy/paste - Paste Mathematical constants (Pi, e, etc.) - Education via Wikipedia pages for categories and conversion units - Currency conversions using online rates - Searchable list of currency rates with possibility to change base rate - Set favorite currencies - Built-in numeric keypad (with calculator mode) to enter numbers on either side of the conversion - Long-press delete key to clear the field in focus - Engineering number format handling - Infinity and negative numbers handling - 7 or 14-digit precision displays (3-digit fractions for currencies) - Searchable list of 1400+ conversion units across 34 categories - On-boarding screens for general operations and for the Currency category (turned off when VoiceOver is on) - Home widget for quick conversions using units selected in the hosting app Happy Conversions!

Screenshots

Converter X4 screens
Shift Unit4 screens

Verdict

The call

The clearest difference is in-app purchases: Shift Unit at none against Converter X's 3. Shift Unit also leads on ads (none vs shown) and rating (5.0 vs 4.7). Converter X's advantage is iOS requirement (17.0 vs 26.0). On price, ratings volume, update cadence 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. Converter X sells 3 in-app purchases, starting at $1.99 per month. Shift Unit asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Shift Unit holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 30 and 21 respectively. Written reviews point the same way: 82% of Converter X's written reviews are positive against 100% of Shift Unit's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 4 level
Converter X versus Shift Unit: the parameters behind the verdict, then further details
ParameterConverter XShift Unit
PriceFreeFree
Rating4.7 (30 ratings)5.0 (21 ratings) — better
Positive reviews81.8% of reviews100.0% of reviews — better
Number of ratings30 — better21
Update frequencyEvery 2 monthsEvery 2 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Apple Watch — betteriPhone, Apple Watch
Requires iOS17.0 — better26.0
Further details — not scored
Size61 MB18 MB
Age rating+44+
DeveloperLeonardo BiliaDidier Burton

Customer experience

Converter X

All ratings30 ratings
Positive90.0%
Neutral6.7%
Negative3.3%
Written reviews11 reviews
Positive81.8%
Neutral18.2%
Negative0.0%

Shift Unit

All ratings21 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews9 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Converter X

Subscriptions2
  • Monthly Premium7 Days trial$1.991 Month
  • Annual Premium7 Days trial$16.991 Year
One-time1
  • Lifetime Premium$40.99
None

Shift Unit

No in-app purchases

Questions

Is Converter X free?
Converter X is free to download, with in-app purchases available.
Is Shift Unit free?
Shift Unit is free to download, with no in-app purchases.
Which has better reviews, Converter X or Shift Unit?
Shift Unit is rated higher. Converter X averages 4.7 out of 5 from 30 ratings, while Shift Unit averages 5.0 from 21 ratings.
Do Converter X or Shift Unit have ads?
Converter X shows ads; Shift Unit does not.
Which is updated more often, Converter X or Shift Unit?
Converter X ships an update every 2 months, and Shift Unit every 2 months. Most recently, Converter X was updated on November 2, 2026 and Shift Unit on November 3, 2026.

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