Best All Units Converter Pro Apps

223+ iOS apps curated and reviewed

4.4 avg rating
19 free apps
Updated October 2026

Out of 223+ all units converter pro apps on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top All Units Converter Pro Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Units - Pro Unit ConverterUnits - Pro Unit ConverterFree4.1★ (51)YesYesOct 2026
2Ad-Free Unit ConverterAd-Free Unit ConverterFree3.9★ (56)NoYesOct 2026
3GlobeConvert Currency & UnitsGlobeConvert Currency & UnitsFree4.8★ (82K)YesYesNov 2026
4Converter: Units & CurrenciesConverter: Units & CurrenciesFree4.8★ (765)NoNoOct 2026
5Unit Converter - Pro Units AppUnit Converter - Pro Units AppFree4.6★ (16K)NoYesNov 2026
6Converter: all unit converterConverter: all unit converterFree—NoNoMay 2026
7Unit Converter ∞Unit Converter ∞$2.994.4★ (243)NoNoOct 2026
8Unit Converter HD.Unit Converter HD.Free4.7★ (645)YesYesOct 2026

Top Picks for All Units Converter Pro

Units - Pro Unit Converter#1

Units - Pro Unit Converter by Homegrown Software Ltd

Convert 800+ units & currency
Editor's Choice
🔧 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

  • 🚀 Efficient and fast conversions
  • 👍 Comprehensive list of units
  • 🔍 Customizable unit selection
  • 💰 Free app with optional paid version
  • 🔧 Useful for engineering and technical work

Room to Improve

  • 🐛 Crashes and stability issues
  • 🕰️ Outdated currency conversion rates
  • 🔍 Too many unit categories, hard to navigate
  • 💰 Ads in free version
  • 📏 Ruler feature not accurate on some devices
3.9😊(56 ratings)
FreeIn-App Purchases
Ad-Free Unit Converter screenshot 1
Ad-Free Unit Converter screenshot 2
Ad-Free Unit Converter screenshot 3
Ad-Free Unit Converter screenshot 4

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.

What We Love

  • 👍 Simple and easy to use
  • 🔒 No ads
  • ✨ Great app overall
  • 🚀 Efficient and fast
  • 💻 Useful for everyday conversions

Room to Improve

  • 🐛 Crashes on newer iOS versions
  • 🔍 Missing some common units of measurement
  • 🌐 Lacks support for non-US units
GlobeConvert Currency & Units#3

GlobeConvert Currency & Units by Ievgenii Lebid

Convert Currency and Units
Worth Considering
🔧 Utilities
4.8😐(82K ratings)
FreeAdsIn-App Purchases
GlobeConvert Currency & Units screenshot 1
GlobeConvert Currency & Units screenshot 2
GlobeConvert Currency & Units screenshot 3
GlobeConvert Currency & Units screenshot 4
GlobeConvert Currency & Units screenshot 5
GlobeConvert Currency & Units screenshot 6

Easily convert over 160 currencies and 350 physical units with real-time updates and offline capabilities. Create a favorites list for quick access to frequently used conversions and enjoy geo-based currency options. An ad-free version is available for purchase.

What We Love

  • 🚀 Easy to use
  • 🚀 Accurate conversions
  • 🚀 Wide range of conversion options
  • 🚀 Helpful for travelers
  • 🚀 Useful for cooking/baking

Room to Improve

  • 🐛 Crashes on iOS 11
  • 🐛 Inaccurate currency conversion rates
  • 🔋 Excessive ads
  • 💰 Overpriced subscription
  • 🔍 Cluttered interface after update

More All Units Converter Pro apps to explore

FAQ about All Units Converter Pro

What are the best all units converter pro apps for iPhone?
Units - Pro Unit Converter tops our all units converter pro apps ranking as of October 2026, with a 4.1-star average from 51 App Store ratings, and it's free to download.
Yes — 19 of the top all units converter pro apps we rank are free to download, including Units - Pro Unit Converter and Ad-Free Unit Converter.
Units - Pro Unit Converter shows ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 223+ all units converter pro apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.