# Converter — Measurement Converter Pro > Extensive measurement and conversion tool with over 14,000 possibilities. (iPhone/iPad app by Nic Kolbe.) - Source: https://appshunter.io/ios/app/converter/id565083506 (this page in markdown: same URL + `.md`) - Developer: [Nic Kolbe](https://appshunter.io/developer/512550641) - Category: Utilities, Reference - Price: $4.99 - Rating: 5.00/5 from 2 App Store ratings · 7 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 67 MB - Languages: American English - Released: 2016-07-02 - Data updated: 2026-07-25 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/converter/id565083506/reviews.md ## What is Converter? Converter – The Ultimate Measurement & Conversion Tool Converter is your ultimate measurement and conversion tool, designed to educate and empower. With over 14,000 conversion possibilities across 30 categories, it’s the most complete and precise calculator you'll ever need — whether you're a student, scientist, engineer, traveler, or simply curious. Explore a wide range of categories: Acceleration, Angle, Area, Base, Body Height, Consumption, Currency (auto-updated via IMF), Data Storage, Data Transfer, Density, Electricity, Energy, Force, GPS, Illuminance, Length, Luminance, Mass, Permeability, Power, Pressure, Radioactivity, Temperature, Time, Time Zone, Torque, Velocity, Viscosity, Volume, Volume Flow Rate — and more. Key Features: • Over 14,000 conversion combinations • Precision up to 100.000 digits • Scientific, standard, and custom formats • Educational layout – all unit values visible in one glance • Clean, user-friendly interface • Easy export or copy/paste of high-precision results • Smart tooltips for every item • Currency updates powered by the International Monetary Fund Trusted sources: • BIPM – Bureau International des Poids et Mesures • NIST – National Institute of Standards and Technology • IMF – International Monetary Fund • IANA – Internet Assigned Numbers Authority • Wikipedia (for accessible context) Whether you're solving school problems or running lab simulations, Converter gives you clarity, confidence, and insight. It’s more than just a calculator — it’s a learning companion built for precision and discovery. Created with love and accuracy by an experienced developer passionate about making complex knowledge accessible to all. Designed not just to convert — but to teach, explain, and inspire clarity. ## Key features - Over 14,000 conversion combinations - Precision up to 100 digits - Scientific, standard, and custom formats - Educational layout with visible unit values - User-friendly interface - Easy export or copy/paste of results - Currency updates via IMF ## Recent user reviews (7 of 7) All indexed reviews: https://appshunter.io/ios/app/converter/id565083506/reviews.md ### 5/5 — Great app *2026-05-01* I just got this for my Mac because my old units converter was not compatible w/ Apple silicon. I have never found a converter with such a complete range of units categories. As a chemical engineer who not infrequently works in other areas, I really find the units library very useful. I only have one suggestion so far- The default font is quite small, but I found that I can easily resize the window and that increases the font size. Perfect! However, when I choose a different category of units, I have to resize the window again. The app appears to remember the size I select for a given unit, but I have to do that for each category separately. I’m guessing this setting might be linked to window size, so that would make sense, since some categories have many more options than others. However, it would be really nice if the settings permitted users to simply select a default font size that would automatically work for all categories. Thanks for a great app! **Developer response:** Thank you so much for the review, glad you like it! Great idea with the font size, thanks - will include it in the next version! All the best! ### 1/5 — App Won’t Open on MacBook Pro with Tahoe 26.1 *2025-12-07* Termination Reason: Namespace CODESIGNING, Code 2, Invalid Page ### 5/5 — The BEST Unit Conversion App! *2025-01-16* I have been using Nic Kolbe‘s Converter app on my Mac for the last decade. After having tried a dozen or more unit conversion apps, this is by far the easiest and most intuitive to use. I’m ecstatic that this is now available in iOS. **Developer response:** Thank you so much for using the app and the awesome review! ### 5/5 — The BEST Conversion App *2025-01-16* Converter by Nic Kolbe has been my goto converstion app on my Mac for over a decade. I'm ecstatic that it's now available on iOS. This is the easiest to use and in my view THE best conversion app available! **Developer response:** Thank you so much! ### 1/5 — Waste of time *2024-05-13* 1. App Store listing have 2 dialogue boxes showing but the one on the left doesn't exist on the app, and evrytime you type in a number it lists, in small print a whole list of number 2. It is useless because, for example, the app is not capable of telling you what is the corresponding number for 2-1/8” in millimeters. ### 5/5 — Most Intuitive Conversion App *2022-12-27* I used it for years on a previous laptop and kept it. Simple drop down menu for type of measurement. Select what you want converted, enter the value, hit Calculate and it simultaneously displays conversions for every possible or obscure unit of measure. Only one I've found that includes Force and Torque choices. The standard font is small but you can corner drag to enlarge the typeface. It would be nice if the app would remember the desired size instead of reverting back to its compact form. **Developer response:** Thank you so much 🙏🏻🤩 Your request is now included! ### 2/5 — Display TOO small *2019-12-19* The display is too small except for the GPS unit. I convert from Millimeter to Inches and back frequently. The text on the display appears to be a 10 point type. The width of the display in the Length calculator is 2 3/4” by 6 1/2” high. Being a senior citizen the text is hard to read requiring me to lean forward and look through my bi-focal lens. I have a 27” iMac, guess the app was designed to be compatible with the 13” Mac Air. The app is inexpensive and works well and fast. **Developer response:** The app is now resizeable! Thank you for the feedback, please adjust your rating. ## Frequently asked questions about Converter ### What is Converter? Converter is a measurement and conversion tool that offers over 14,000 conversion possibilities across 30 categories. It is designed for precision and educational purposes, making complex knowledge accessible. ### How many units can Converter convert? Converter supports over 14,000 conversion combinations across 30 categories, including acceleration, area, currency, length, mass, temperature, and volume. ### What is the precision of Converter? Converter provides precision up to 100 digits, ensuring highly accurate calculations for scientific and engineering needs. ### Does Converter offer currency conversions? Yes, Converter includes currency conversions that are automatically updated via the International Monetary Fund (IMF), ensuring you have the latest exchange rates. ### Is Converter available on multiple devices? Converter is available for Mac, iPhone, iPad, and iPod, allowing you to perform conversions across your Apple ecosystem. ### How often is Converter updated? The latest version of Converter is 1.5, and it was last updated on October 21, 2025. This indicates a commitment to ongoing development and improvements. ### What is the price of Converter? Converter is a paid application priced at $4.99. This one-time purchase grants you access to its full range of features and conversions. ### Does Converter have ads? No, Converter does not contain advertisements. As a paid app, it offers an ad-free experience for uninterrupted use. ## Version history (last 5 releases) ### 5.0.4 — 2026-07-23 Converter has received one of its most extensive updates yet, with major improvements to precision, educational content, usability, and device support. • Every conversion formula has been carefully reviewed, updated, and tested • Planck values have been added throughout the relevant scientific categories • All unit information texts have been rewritten and greatly expanded Each unit now provides clearer and more useful information, including its symbol, measured quantity, unit system, SI relationship, physical meaning, typical uses, historical background, dimensions, and relevant scientific connections. • Completely new layouts have been created and optimised separately for iPhone and iPad • Numerous interface refinements, corrections, and stability improvements have been added This major update was created through close human–AI collaboration, combining careful human testing, scientific research, detailed formula verification, and precision-focused analysis. Converter now offers its most accurate, complete, educational, and refined experience yet—designed not only to convert values, but also to explain, teach, and inspire discovery. ### 1.5 — 2025-10-21 • Smarter UI with Detailed Tooltips Every unit across all 30 groups now includes rich tooltips that display the scientific symbol and a detailed explanation — helping users understand not just how, but what they’re converting. • New layout with SI, International, UK, US and UK/US values iOS version is now 100 % of the desktop macOS version, except e=mc² which will be added with the next update! ### 1.2 — 2025-01-15 Added Landscape mode as requested by user to display long results ### 1.1 — 2025-01-14 Added group Time Zone. ### 1.0 — 2025-01-13 No release notes. ## Apps similar to Converter | App | Rating | Price | Category | | --- | --- | --- | --- | | [Clear Speaker: Water Eject Bud](https://appshunter.io/ios/app/clear-speaker-water-eject-bud/id6751759397) | — | $0.99 | Utilities | | [FancyEnglish](https://appshunter.io/ios/app/fancyenglish/id6752805854) | — | $0.99 | Utilities | | [Local AI Chat - Locra](https://appshunter.io/ios/app/local-ai-chat-locra/id6752533788) | — | Free | Utilities | | [Universal Converter!](https://appshunter.io/ios/app/universal-converter/id6448482217) | — | Free | Utilities | | [BarConvert: Unit Converter](https://appshunter.io/ios/app/barconvert-unit-converter/id1518931403) | — | Free | Utilities | | [Converter 26 - Unit Converter](https://appshunter.io/ios/app/converter-26-unit-converter/id6752208242) | 5.0 (5) | $2.99 | Utilities | ## More apps by Nic Kolbe - [Find PRO](https://appshunter.io/ios/app/find-pro/id964800714) - [Electric PRO](https://appshunter.io/ios/app/electric-pro/id1014995444) - [Yoga Timer](https://appshunter.io/ios/app/yoga-timer/id1162947707) - [Numerology](https://appshunter.io/ios/app/numerology/id1195301998) - [Vibration](https://appshunter.io/ios/app/vibration/id1479199097) All apps by Nic Kolbe: https://appshunter.io/developer/512550641 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-25.*