Best Unit Converter Pro Calculator Apps

231+ iOS apps curated and reviewed

4.5 avg rating
19 free apps
Updated November 2026

Every iPhone needs a few good unit converter pro calculator apps. We benchmark 231+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Unit Converter Pro Calculator Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Unit Converter Pro CalculatorUnit Converter Pro CalculatorFreeβ€”YesNoOct 2026
2Units - Pro Unit ConverterUnits - Pro Unit ConverterFree4.1β˜… (51)YesYesOct 2026
3Convert Any Unit LiteConvert Any Unit LiteFree4.7β˜… (48K)YesNoNov 2026
4Unit Converter HD.Unit Converter HD.Free4.7β˜… (646)YesYesNov 2026
5Unit Converter 2021Unit Converter 2021Free4.7β˜… (408)YesYesOct 2026
6Unit Converter - Convert allUnit Converter - Convert allFree4.6β˜… (14K)YesYesNov 2026
7Unit Converter - Pro Units AppUnit Converter - Pro Units AppFree4.6β˜… (16K)NoYesNov 2026
8Ad-Free Unit ConverterAd-Free Unit ConverterFree3.9β˜… (56)NoYesOct 2026

Top Picks for Unit Converter Pro Calculator

Units - Pro Unit Converter#2

Units - Pro Unit Converter by Homegrown Software Ltd

Convert 800+ units & currency
Strong Contender
πŸ”§ Utilities
4.1😐(51 ratings)
FreeAdsIn-App Purchases
Units - Pro Unit Converter screenshot 1
Units - Pro Unit Converter screenshot 2
Units - Pro Unit Converter screenshot 3
Units - Pro Unit Converter screenshot 4
Units - Pro Unit Converter screenshot 5
Units - Pro Unit Converter screenshot 6

Easily convert between hundreds of units across 43 categories, including currency with daily updated rates. Customize your workflow by hiding or reordering units and categories.

What We Love

  • πŸš€ Efficient and fast conversions
  • πŸ‘ Comprehensive list of units
  • πŸ” Customizable unit selection
  • πŸ’° Free app with optional paid version
  • πŸ”§ Useful for engineering and technical work

Room to Improve

  • πŸ› Crashes and stability issues
  • πŸ•°οΈ Outdated currency conversion rates
  • πŸ” Too many unit categories, hard to navigate
  • πŸ’° Ads in free version
  • πŸ“ Ruler feature not accurate on some devices
Convert Any Unit Lite#3

Convert Any Unit Lite by Cider Software LLC

Units & Currency Converter
Worth Considering
✈️ Travel
4.7😊(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

  • πŸ‘ Easy to use
  • πŸš€ Comprehensive unit conversions
  • πŸ’‘ Allows custom unit creation
  • πŸ”§ Useful for cooking, travel, and work
  • πŸ” Intuitive and straightforward interface

Room to Improve

  • πŸ” Too many unit options can be overwhelming
  • πŸ” Ads can be intrusive and disrupt usage
  • πŸ› Occasional bugs and freezing issues
  • πŸ”‹ High ad frequency drains battery quickly

More Unit Converter Pro Calculator apps to explore

FAQ about Unit Converter Pro Calculator

Are there free unit converter pro calculator apps for iPhone?
Yes β€” 19 of the top unit converter pro calculator apps we rank are free to download, including Unit Converter Pro Calculator and Units - Pro Unit Converter.
Unit Converter Pro Calculator shows ads and has no in-app purchases, according to its App Store listing as of November 2026.
We track 231+ unit converter pro calculator apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.