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Best Unit Upgrade Apps

137+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated June 2026

If you already know Convert Any Unit Lite, this is the deeper bench. 137+ unit upgrade apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of June 2026.

Compare top Unit Upgrade Apps (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Convert Any Unit LiteConvert Any Unit LiteFree4.7โ˜… (48K)YesNoAug 2026
2Unit Converter HD.Unit Converter HD.Free4.7โ˜… (645)YesYesAug 2026
3Convertible: Unit ConverterConvertible: Unit ConverterFree4.8โ˜… (97)NoNoJul 2026
4Ad-Free Unit ConverterAd-Free Unit ConverterFree3.9โ˜… (54)NoYesAug 2026
5Unit converter - Convert UnitUnit converter - Convert UnitFree4.9โ˜… (14)YesNoMay 2026
6Unit Converter -- All In OneUnit Converter -- All In OneFree4.7โ˜… (45)YesNoAug 2026
7Unit Plus-24 measurement unitsUnit Plus-24 measurement unitsFree5.0โ˜… (3)YesYesMay 2026
8Uniter: Smart Unit ConversionUniter: Smart Unit ConversionFree4.7โ˜… (73)NoYesAug 2026

Top Picks for Unit Upgrade

Convert Any Unit Lite#1

Convert Any Unit Lite by Cider Software LLC

Units & Currency Converter
Editor's Choice
โœˆ๏ธ Travel
4.7๐Ÿ˜Š(48K ratings)
FreeAds
Convert Any Unit Lite screenshot 1
Convert Any Unit Lite screenshot 2
Convert Any Unit Lite screenshot 3
Convert Any Unit Lite screenshot 4
Convert Any Unit Lite screenshot 5

Quickly convert between thousands of units with an intelligent search and autocomplete feature. This app offers a streamlined interface, an integrated calculator, and the ability to save favorite conversions. It supports over 6,400 units across 51 categories, making it a comprehensive tool for all your conversion needs.

What We Love

  • ๐Ÿ‘ Easy to use
  • ๐Ÿš€ Comprehensive unit conversions
  • ๐Ÿ’ก Allows custom unit creation
  • ๐Ÿ”ง Useful for cooking, travel, and work

Room to Improve

  • ๐Ÿ” Too many unit options can be overwhelming
  • ๐Ÿ” Ads can be intrusive and disrupt usage
  • ๐Ÿ› Occasional bugs and freezing issues
Unit Converter HD.#2

Unit Converter HD. by ่‰ฏๅณฐ ไพฏ

30 categories, 700+ units
Strong Contender
๐Ÿ”ง Utilities
4.7๐Ÿ˜Š(645 ratings)
FreeAdsIn-App Purchases
Unit Converter HD. screenshot 1
Unit Converter HD. screenshot 2
Unit Converter HD. screenshot 3

Easily convert over 700 units across 30 categories with this powerful tool. It offers a user-friendly interface, dark mode support, and a backspace key for quick corrections. Save time on all your measurement conversion needs.

What We Love

  • ๐Ÿ‘ Easy to use
  • ๐Ÿš€ Handy and convenient
  • ๐Ÿ’ก Comprehensive set of conversions
  • ๐Ÿš€ Very useful app

Room to Improve

  • ๐Ÿ› Occasional crashes or freezing issues
  • ๐Ÿ’ก Could be more intuitive for some users
  • ๐Ÿ”’ Requires horizontal orientation
Convertible: Unit Converter#3

Convertible: Unit Converter by Efecto Pty Ltd

Currency and Unit Converter
Worth Considering
๐Ÿ”ง Utilities
4.8๐Ÿ˜Š(97 ratings)
Free
Convertible: Unit Converter screenshot 1
Convertible: Unit Converter screenshot 2
Convertible: Unit Converter screenshot 3
Convertible: Unit Converter screenshot 4
Convertible: Unit Converter screenshot 5
Convertible: Unit Converter screenshot 6

This app offers a comprehensive unit and currency conversion tool with a visually appealing interface and extensive unit options. It supports standard and non-standard units, compound conversions, and fraction input, making it versatile for various needs.

What We Love

  • ๐Ÿ’ป Excellent user interface
  • โš™๏ธ Comprehensive set of conversion units
  • ๐Ÿ” Intuitive and easy to use
  • ๐ŸŽจ Customizable color themes

Room to Improve

  • ๐Ÿ› Occasional crashes or bugs
  • ๐Ÿ” Navigation can be confusing at times
  • ๐Ÿ”ข Lack of support for custom units

More Unit Upgrade apps to explore

4
Ad-Free Unit Converter
Ad-Free Unit Converter
Ad-Free Unit Converter
by William Jockusch
Free

A straightforward unit converter designed for ease of use and efficiency. It offers a wide range of conversion options without any advertisements, saving battery and data. All conversions are performed on a single, intuitive screen.

Ad-free experienceIntuitive single-screen interfaceSupports acceleration, angle, area, density, distance, energy, force, mass, power, pressure, speed, temperature, time, and volume
๐Ÿ”ง Utilities
(54)
free with in-app purchases
5
Unit converter - Convert Unit
Unit converter - Convert Unit
Unit converter - Convert Unit
Convert Metric
Free

This application offers a straightforward and efficient way to convert various units. It features a simple interface for quick conversions and allows users to save their conversion history for future reference.

Simple unit conversionQuick conversion toolSave conversion history
๐Ÿ”ง Utilities
(14)
ad-supported
6
Unit Converter -- All In One
Unit Converter -- All In One
Unit Converter -- All In One
Area, length, volume converter
Free

Easily convert between various units across different categories like clothing, area, weight, and volume. Customize decimal places for precise results. This tool offers a simple and intuitive interface for all your conversion needs.

Categorized unit conversionsCustomizable decimal placesSimple and easy to use interface
๐Ÿ”ง Utilities
(45)
ad-supported
7
Unit Plus-24 measurement units
Unit Plus-24 measurement units
Unit Plus-24 measurement units
All in one unit measurement
Free

A beautifully designed unit converter with 24 categories and numerous units. Easily convert measurements from one unit to all others with a simple and intuitive interface. More units are planned for future updates.

24 conversion categoriesExtensive unit selectionIntuitive user interface
๐Ÿ”ง Utilities
(3)
free with in-app purchases
8
Uniter: Smart Unit Conversion
Uniter: Smart Unit Conversion
Uniter: Smart Unit Conversion
Convert Metric & US Imperial
Free

Effortlessly convert units of measurement directly within text, websites, or even through your camera. This utility automatically detects and converts units to your preferred system, supporting a vast array of measurement types.

Automatic unit conversionLive side-by-side converterFile import for conversion
๐Ÿ”ง Utilities
(73)
free with in-app purchases
9
Easy Converter - unit convert
Easy Converter - unit convert
Easy Converter - unit convert
by ็ฆๆฉ ๆฏ›
Free

This app offers a straightforward way to convert common measurements across various categories like length, weight, and temperature. It features a clean interface for quick input and instant, readable results, with options to swap units and view conversion history.

Converts length, weight, temperature, volume, area, speed, and timeClean modern interfaceOne-tap unit swapping
๐Ÿ“š Education
(17)
free
10
Unit Converter | Converter4U
Unit Converter | Converter4U
Unit Converter | Converter4U
Student Traveler Cook and DIY
Free
$0.99 | 100% OFF

This app provides a powerful and intuitive way to convert between a wide range of units, including length, weight, temperature, and more. It offers simultaneous conversion of multiple units and customizable options for a personalized experience. Get instant, accurate results for all your conversion needs.

Simultaneous multi-unit conversionCustomizable unit optionsCopy converted values to clipboard
๐Ÿ“Š Productivity
(193)
free
11
All Unit Conversion
All Unit Conversion
All Unit Conversion
Unit converter
Free

Easily convert between various units of measurement with this free utility app. It supports conversions for length, area, volume, mass, time, digital storage, energy, and currency.

Length conversionArea conversionVolume conversion
๐Ÿ”ง Utilities
(17)
free
12
AIAIAI Audio
AIAIAI Audio
AIAIAI Audio
AIAIAI S11 + UNIT-4
Free

Control your AIAIAI wireless headphones and studio monitors. Customize sound profiles, adjust settings, and update firmware for an optimized audio experience.

Sound profile customization (EQ)Configuration adjustmentsFirmware upgrades
๐Ÿ”ง Utilities
(4)
free
13
Simple Unit Converter - Pro Measurement and Conversion Calculator for Multi Units
Simple Unit Converter - Pro Measurement and Conversion Calculator for Multi Units
Simple Unit Converter - Pro Measurement and Conversion Calculator for Multi Units
by Jian Yih Lee
Free

Easily convert between a wide range of units for length, area, mass, temperature, volume, and more. This app offers a comprehensive set of conversion tools for everyday and professional use.

Length conversionsArea conversionsMass conversions
๐Ÿ“Š Productivity
(210)
free
14
Unit Converter-All in One Tool
Unit Converter-All in One Tool
Unit Converter-All in One Tool
easy to use unit converter
Free

Easily convert between a wide range of units for everyday tasks. Quickly change units with a simple scroll interface. Supports common measurements like length, weight, temperature, and more.

Converts length, area, volume, weightSupports pressure, speed, temperature, timeIncludes data, energy, and angle units
๐ŸŒŸ Lifestyle
(9)
ad-supported
15
Unit Converter & Currency
Unit Converter & Currency
Unit Converter & Currency
All-in-One Unit Converter
Free

This app offers a comprehensive unit conversion tool with a clean interface and extensive customization options. It supports offline use and includes a currency converter, making it a versatile utility for various conversion needs.

Offline unit conversionCurrency converter32 unit categories
๐Ÿ”ง Utilities
(1)
free with in-app purchases
16
Convert Any Unit- Unit Convert
Convert Any Unit- Unit Convert
Convert Any Unit- Unit Convert
by Fahad Manzoor
Free

This utility app offers a straightforward and user-friendly interface for converting between various units. It's designed for ease of use, making unit conversions simple for everyday users.

Intuitive UISimple designEasy unit conversion
๐Ÿ”ง Utilities
(1)
free
17
Fast Convert Unit and Measure
Fast Convert Unit and Measure
Fast Convert Unit and Measure
Simply the best converter
Free

Easily convert between various units and metrics with a streamlined interface. Quickly access frequently used conversions through automatic shortcuts. Supports over 130 units across 20 categories, with options to customize decimals and reorganize metrics.

Automatic shortcut creation for frequent unitsCustomizable number of decimalsReorganize metric shortcuts
๐Ÿ”ง Utilities
(25)
free with in-app purchases
18
HomeWiP Panel Upgrade
HomeWiP Panel Upgrade
HomeWiP Panel Upgrade
by Home WiP Inc
Free
๐Ÿ”ง Utilities
(0)
19
Unit - unit converter
Unit - unit converter
Unit - unit converter
Simple unit converter
Free

Easily convert between over 75 units across 10 categories, with automatic calculations for all units simultaneously. Customize your list for quick access to frequently used conversions, including specialized options for cooking and imperial measurements. Enjoy a colorful, ad-free experience with offline functionality.

Convert between 10 categories and 75+ unitsAutomatic calculation of all unitsCustomizable and reorderable unit lists
๐Ÿ”ง Utilities
(7)
free
20
OTA upgrade
OTA upgrade
OTA upgrade
Upgrade your firmware via OTA.
Free
๐Ÿ”ง Utilities
(0)

FAQ about Unit Upgrade

What are the best unit upgrade apps for iPhone?
Convert Any Unit Lite tops our unit upgrade apps ranking as of June 2026, with a 4.7-star average from 48K App Store ratings, and it's free to download.
Yes โ€” 20 of the top unit upgrade apps we rank are free to download, including Convert Any Unit Lite and Unit Converter HD..
Convert Any Unit Lite shows ads and has no in-app purchases, according to its App Store listing as of June 2026.
We track 137+ unit upgrade apps on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.
Convert Any Unit Lite is a fast and comprehensive application designed for converting between a vast array of units and currencies. It features an intelligent search function that suggests units as you type, automatic category selection, and an integrated calculator, making conversions quick and efficient.
Key features include an intelligent search with autocomplete for rapid unit selection, automatic category assignment, an integrated calculator, the ability to save and organize favorite conversions into folders, and support for over 6,400 units across 51 categories. It also offers fractional conversion output and displays conversion results as easy-to-understand equations.