# VacuumProjectPro > Engineering app for vacuum technology calculations and system parameter analysis. (iPhone/iPad app by Ing. Ennio Nicolò.) - Source: https://appshunter.io/ios/app/vacuumprojectpro/id417629490 (this page in markdown: same URL + `.md`) - Developer: [Ing. Ennio Nicolò](https://appshunter.io/developer/306920486) - Category: Utilities, Productivity - Price: Free - Rating: 4.00/5 from 1 App Store ratings · 3 written reviews indexed - Age rating: 4+ - Requires: iOS 15.6 · 38 MB - Languages: American English - Released: 2011-02-04 - Data updated: 2026-07-22 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/vacuumprojectpro/id417629490/reviews.md ## What is VacuumProjectPro? VacuumProjectPro is an engineering application dedicated to calculations for vacuum technology. It calculates fundamental vacuum-system parameters, including pumping speed and pump-down time for primary and secondary vacuum systems. VacuumProjectPro uses pumping-speed curves for different vacuum pump technologies—including single-stage and two-stage rotary vane pumps, Roots pumping systems and turbomolecular pumps—to calculate operating parameters using integral calculations. PRO version features: - PNEUROP pumping-speed calculations for primary vacuum pumps, including single-stage and two-stage rotary vane pumps and Roots systems - Primary and secondary vacuum calculations - Vacuum chamber leak-rate calculations - Conductance calculations for tubes and tube series - Effective pumping-speed calculations - Outgassing calculations for a wide selection of vacuum materials, including custom materials - Unit conversions for pressure, leak rate, pumping speed and other vacuum quantities - Catalogue of ISO-KF, ISO-K and CF vacuum components - Optimized graphics for Retina displays - Additional engineering tools and reference information IMPORTANT NOTICE VacuumProjectPro is an engineering calculation and simulation aid. Results must be independently verified before being used for the design, selection or operation of vacuum systems. The app does not replace professional engineering judgment. The authors accept no responsibility for errors, improper use or consequences arising from the use of the calculated results. ## Key features - Vacuum system parameter calculations - Pumping speed and pump-down time calculation - Integral calculations using pump-speed curves - PNEUROP pumping-speed calculations - Vacuum chamber leak-rate calculations - Conductance calculations for tubes - Outgassing calculations for vacuum materials - Unit conversions for vacuum quantities ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/vacuumprojectpro/id417629490/reviews.md ### 4/5 — Good Unit Converter *2013-10-30* This is the only pressure unit converter I could find that supports scientific notation. I can type in "1e-6" and it knows what I mean. It would be nice if it consistently showed two decimal places in the answer instead of truncating zero values. I haven't used the other features of the app, but it looks very well thought out. The features are not intuitive, so you'll want to read the help info first. ### 4/5 — Disappointed *2011-09-04* Conversions are nice and interesting! Rest of the programs are very marginal and dangerously simplified. Buy a good handbook. Program crashes frequently! ### 1/5 — About useless *2011-06-27* Trying to do simple conversion and app crashes. Waste of $2.99. Would have got more use from the virtual Hoover app. ## Frequently asked questions about VacuumProjectPro ### What kind of calculations does VacuumProjectPro perform? VacuumProjectPro performs fundamental vacuum-system parameter calculations, including pumping speed and pump-down time for primary and secondary vacuum systems. It uses integral calculations based on pumping-speed curves for various vacuum pump technologies. ### Does VacuumProjectPro offer advanced features for PRO users? Yes, the PRO version includes PNEUROP pumping-speed calculations, primary and secondary vacuum calculations, vacuum chamber leak-rate calculations, conductance calculations for tubes, effective pumping-speed calculations, and outgassing calculations for a wide selection of vacuum materials. ### Can VacuumProjectPro help with unit conversions? Yes, VacuumProjectPro includes unit conversions for pressure, leak rate, pumping speed, and other vacuum quantities, making it a versatile tool for engineers. ### What vacuum components are included in VacuumProjectPro? The app features a catalogue of ISO-KF, ISO-K, and CF vacuum components, aiding in the design and selection of vacuum systems. ### Is VacuumProjectPro suitable for all vacuum system designs? VacuumProjectPro is an engineering calculation and simulation aid. Results must be independently verified before being used for the design, selection, or operation of vacuum systems, as the app does not replace professional engineering judgment. ### What is the rating and price of VacuumProjectPro? VacuumProjectPro has a rating of 4.0 stars from 1 rating and is available for free. It was last updated on July 15, 2026. ### What devices support VacuumProjectPro? VacuumProjectPro is supported on iPhone and iPod devices. It has an age rating of 4+. ### Does VacuumProjectPro have ads? No, VacuumProjectPro does not contain advertisements. ## Version history (last 3 releases) ### 2.0 — 2026-07-15 Updated for compatibility with current iPhone and iOS versions. Improved interface layout, readability and input handling. Expanded the Secondary Vacuum outgassing-material database. Improved Conductance, Leak Rate and unit-conversion tools. General stability and usability improvements. ### 1.1 — 2013-01-19 - iOS 6 available - minor bug fix ### 1.0 — 2011-02-04 No release notes. ## More apps by Ing. Ennio Nicolò - [RosaDeiVentiHD](https://appshunter.io/ios/app/rosadeiventihd/id384332453) - [t-Scribed](https://appshunter.io/ios/app/t-scribed/id503255242) All apps by Ing. Ennio Nicolò: https://appshunter.io/developer/306920486 --- *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 2026-07-22.*