# MicroWave Calculator > Microwave measurement error and parameter calculation tool. (iPhone/iPad app by Keysight Technologies, Inc..) - Source: https://appshunter.io/ios/app/microwave-calculator/id369705771 (this page in markdown: same URL + `.md`) - Developer: [Keysight Technologies, Inc.](https://appshunter.io/developer/903911491) - Category: Business, Utilities - Price: Free - Rating: 2.80/5 from 4 App Store ratings · 5 written reviews indexed - Age rating: 4+ - Requires: iOS 7.1 · 2 MB - Languages: American English - Released: 2010-05-10 - Data updated: 2026-06-01 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/microwave-calculator/id369705771/reviews.md ## What is MicroWave Calculator? The Keysight Microwave (µWave) calculator helps calculate errors in your microwave measurements. It consists of a Directivity Error Calculator, a Mismatch Error Limit Calculator, a Ratio-to-dB Calculator, Noise calculators and Antenna calculators. ## Key features - Directivity Error Calculator - Mismatch Error Limit Calculator - Ratio-to-dB Calculator - Noise Calculators - Antenna Calculators ## Recent user reviews (5 of 5) All indexed reviews: https://appshunter.io/ios/app/microwave-calculator/id369705771/reviews.md ### 1/5 — Does not work anymore Sep2025 *2025-09-26, version 3.0* This calculator has stopped working and exits as soon as you try to activate a calculation. ### 1/5 — Incorrect calculations *2024-10-17, version 3.0* Wrong calculations for mismatch loss and RL. ### 2/5 — Glaring deficiencies *2015-01-30, version 3.0* This appears to be a remake of the old Agilent calculator, which, though incomplete, was a cool and functional device. This new Keysight calculator, however, confuses return loss with insertion loss and vice versa. It also displays the decibel (dB) as a non-absolute term, which is a gross error. You need to clean this thing up. ### 4/5 — Nice replacement for slide rule *2014-06-23, version 2.1* For those familiar with using the old HP reflectometer calculator, this is a nice substitute. You can do most things that you usually do with the slide rule. It's a little easier to carry around than the slide rule, too. My suggestion is to compare the app with your slide rule until you're familiar with what function corresponds to your slide rule. Well done. ### 5/5 — Awesome *2010-05-11, version 0* Don't need cardboard slider version anymore! ## Frequently asked questions about MicroWave Calculator ### What is MicroWave Calculator used for? MicroWave Calculator is designed to help users calculate various errors and parameters related to microwave measurements. It offers tools for directivity errors, mismatch limits, ratio-to-dB conversions, noise calculations, and antenna parameters. ### Is MicroWave Calculator free to use? Yes, MicroWave Calculator is available for free. It does not require any payment to download or use its features. ### What devices is MicroWave Calculator compatible with? MicroWave Calculator is compatible with iPhones and iPods. It is designed for iOS devices. ### How often is MicroWave Calculator updated? The latest version of MicroWave Calculator was released on November 7, 2014. The app has not received updates since then, suggesting it may be a legacy application. ### What is the user rating for MicroWave Calculator? MicroWave Calculator has a rating of 2.8 stars based on 4 user ratings. This indicates a mixed reception from its user base. ### Does MicroWave Calculator have ads? No, MicroWave Calculator does not contain advertisements. The app is free and ad-free. ### What is the age rating for MicroWave Calculator? MicroWave Calculator has an age rating of 4+. This means it is suitable for users aged 4 and above. ### Who developed MicroWave Calculator? MicroWave Calculator was developed by Keysight Technologies, Inc., a company specializing in electronic measurement solutions. ## Version history (last 4 releases) ### 3.0 — 2014-11-07 This app has been updated by Apple to display the Apple Watch app icon. Keysight branding changes ### 2.1 — 2012-07-24 Calculations issue fixes. ### 2.0 — 2011-06-07 Added following new calculators to the existing Directivity and Mismatch Calculators: - Noise Calculators (includes 7 calculators related to Noise Figure calculations) - Antenna Calculators (includes 3 calculators related to Antenna calculations) ### 1.0 — 2010-04-30 No release notes. ## Apps similar to MicroWave Calculator | App | Rating | Price | Category | | --- | --- | --- | --- | | [57 concrete](https://appshunter.io/ios/app/57-concrete/id1555614349) | 5.0 (2) | Free | Business | | [TowerCo On-the-Go](https://appshunter.io/ios/app/towerco-on-the-go/id446487320) | 2.0 (1) | Free | Business | | [Woken APP](https://appshunter.io/ios/app/woken-app/id843339493) | — | Free | Business | | [Microwave Journal Magazine](https://appshunter.io/ios/app/microwave-journal-magazine/id580173063) | 3.0 (4) | Free | Business | | [Kard Order Delivery](https://appshunter.io/ios/app/kard-order-delivery/id1534668037) | — | Free | Business | | [HamiltonEq Community](https://appshunter.io/ios/app/hamiltoneq-community/id6443994055) | — | Free | Business | ## More apps by Keysight Technologies, Inc. - [Engineering Calc](https://appshunter.io/ios/app/engineering-calc/id415598261) - [Tips and Tricks - Keysight Oscilloscopes](https://appshunter.io/ios/app/tips-and-tricks-keysight-oscilloscopes/id416812592) - [Keysight Pocket Guide](https://appshunter.io/ios/app/keysight-pocket-guide/id579918710) - [FieldFox](https://appshunter.io/ios/app/fieldfox/id635077328) - [Electronics Handbook](https://appshunter.io/ios/app/electronics-handbook/id723317441) All apps by Keysight Technologies, Inc.: https://appshunter.io/developer/903911491 --- *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 2026-06-01.*