# NerdCalc > Simultaneous binary, hexadecimal, and decimal calculator with bitwise operations. (iPhone/iPad app by Nidal Fakhouri.) - Source: https://appshunter.io/ios/app/nerdcalc/id432781819 (this page in markdown: same URL + `.md`) - Developer: [Nidal Fakhouri](https://appshunter.io/developer/432780820) - Category: Utilities, Education - Price: Free - Rating: 4.80/5 from 180 App Store ratings · 24 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 0 MB - Languages: American English - Released: 2011-04-28 - Data updated: 2026-07-24 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/nerdcalc/id432781819/reviews.md ## What is NerdCalc? NerdCalc is a binary, hexadecimal and decimal calculator that displays all three number bases at the same time. With NerdCalc, you can quickly switch which base you are inputting and the result of your calculations is always updated for all three bases, no matter what the current input mode. NerdCalc supports both unsigned and 2’s complement, to allow for negative numbers, and can perform basic arithmetic and logic operations as well as bitwise shifting. Enjoy! ## Key features - Simultaneous base display - Switchable input modes - Unsigned and 2's complement support - Arithmetic operations - Logic operations - Bitwise shifting ## Recent user reviews (10 of 24) All indexed reviews: https://appshunter.io/ios/app/nerdcalc/id432781819/reviews.md ### 5/5 — Great *2024-10-23* Useful, Free, Ad-Free, and Privacy Respected. What is not to like!!! Thank you ### 5/5 — Look, it works, okay? *2021-11-14, version 1.7* My goodness, I’ve used it maybe ten times so far in two days, and it asks me for a review every time. I’m just writing this to shut it up, gosh dang, wow. ### 5/5 — Great calculator for programmers *2021-09-21, version 1.7* I use this calculator frequently for my job. Easily lets you perform all logical and math operations on any size integer value. Result can be viewed in decimal, binary and hexadecimal at the same time. Works with signed and unsigned values. ### 5/5 — Great for PLC *2021-05-27, version 1.7* Used this today in a training class for a major vehicle manufacturer. Simple and easy to use. ### 5/5 — Great for program guys! *2019-10-21, version 1.5* I am needing a tool to convert 2’s complement for MCU coding , I found this tool! ### 5/5 — Great app *2016-10-19, version 1.4* Very handy ### 5/5 — Excellent calculator! *2014-03-15, version 1.4* Needed a calculator to help me practice subnetting for my Cisco networking classes. This calculator certainly does the trick! Thanks! ### 5/5 — Programmer's best friend *2014-02-20, version 1.4* The perfect app when you have to quickly test the results from low level bit operations. When I'm testing the values stored in my company's driver registers this app is a huge time saver. ### 5/5 — Great app *2013-11-30, version 1.4* Really awesome!! ### 3/5 — Ads = Delete *2013-11-21, version 1.4* Latest "upgrade" includes the ever popular annoying ads "feature". Deleted and replaced with Pro Calc. ## Frequently asked questions about NerdCalc ### What does NerdCalc do? NerdCalc is a calculator that displays binary, hexadecimal, and decimal number bases simultaneously. You can input numbers in any of these bases, and the app will instantly update the results for all three. It supports both unsigned and 2's complement representations for negative numbers. ### What types of operations can NerdCalc perform? NerdCalc can perform basic arithmetic operations (addition, subtraction, multiplication, division) as well as logic operations (AND, OR, XOR, NOT). It also supports bitwise shifting operations, allowing you to move bits left or right. ### Is NerdCalc free to use? Yes, NerdCalc is completely free to use. There are no in-app purchases or advertisements within the application. ### What is the main benefit of using NerdCalc? The primary benefit of NerdCalc is its ability to display and calculate across binary, hexadecimal, and decimal bases concurrently. This eliminates the need to switch between different calculators or manually convert numbers, streamlining calculations for users who work with multiple number systems. ## Version history (last 5 releases) ### 1.8 — 2022-10-18 Bug Fixes. ### 1.7 — 2021-04-08 Minor Bug Fixes. ### 1.6 — 2021-02-28 Remove Ads! Fix Layout across all devices! ### 1.5 — 2017-10-30 Updated for iOS 11, finally. Added 64 Bit Mode, also finally... Enjoy! ### 1.4 — 2013-11-19 More Appearance Updates ## Apps similar to NerdCalc | App | Rating | Price | Category | | --- | --- | --- | --- | | [Dozecal](https://appshunter.io/ios/app/dozecal/id1521160089) | 4.0 (4) | Free | Utilities | | [Developer Calc Hex Dec Oct Bin](https://appshunter.io/ios/app/developer-calc-hex-dec-oct-bin/id568750126) | 4.1 (14) | Free | Utilities | | [Convex Programmer's Calculator](https://appshunter.io/ios/app/convex-programmers-calculator/id1021414602) | 4.7 (6) | Free | Utilities | | [Binary_Calculator](https://appshunter.io/ios/app/binary-calculator/id1611003861) | 1.0 (1) | Free | Utilities | | [Programming Calculator](https://appshunter.io/ios/app/programming-calculator/id1481845623) | 4.9 (38) | Free | Utilities | | [Binary Calculator.](https://appshunter.io/ios/app/binary-calculator/id6451042861) | 4.9 (8) | Free | Utilities | ## More apps by Nidal Fakhouri - [Pixelish](https://appshunter.io/ios/app/pixelish/id749481884) All apps by Nidal Fakhouri: https://appshunter.io/developer/432780820 ## Related topics [nidal fakhouri](https://appshunter.io/ios/topics/nidal-fakhouri) · [binary calculator](https://appshunter.io/ios/topics/binary-calculator) · [hex converter](https://appshunter.io/ios/topics/hex-converter) · [nucommerce int](https://appshunter.io/ios/topics/nucommerce-int) --- *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 2026-07-24.*