# Virtual Slide Rule > A virtual slide rule for learning and calculation. (iPhone/iPad app by Bob Gordon.) - Source: https://appshunter.io/ios/app/virtual-slide-rule/id426754098 (this page in markdown: same URL + `.md`) - Developer: [Bob Gordon](https://appshunter.io/developer/346501469) - Category: Entertainment, Education - Price: $1.99 - Rating: 4.75/5 from 4 App Store ratings · 9 written reviews indexed - Age rating: 4+ - Requires: iOS 8.0 · 7 MB - Languages: English - Released: 2011-03-25 - Data updated: 2026-06-10 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/virtual-slide-rule/id426754098/reviews.md ## What is Virtual Slide Rule? A genuine, virtual slide rule. Learn how to use the tool that helped us land on the moon. Now with new zoom feature! ## Key features - Genuine virtual slide rule - Learn historical calculation methods - Zoom feature for usability - Educational tool ## Recent user reviews (9 of 9) All indexed reviews: https://appshunter.io/ios/app/virtual-slide-rule/id426754098/reviews.md ### 4/5 — Almost perfect *2019-05-14, version 3.01.04* This should easily be my favorite slide rule app, as this was the rule I used in electronics school and for years later. This app works great, except for one flaw - the top cursor rail protrudes down into the top scale. This simply should not be. The bottom rail is as it should be, not interfering at all. Other than this one irritating issue, the rule looks great, is easy to read and use. It’s almost perfect. ### 5/5 — Excellent creative accurate APP !! *2018-09-11, version 3.01.04* As an Electrical Engineering student before calculators these were a mandatory tool for most engineering courses. ### 4/5 — Needs zoom *2013-03-13, version 2.03.01* ...so you don't have to keep scrolling left and right to see the whole slide rule. ### 5/5 — Slide Rule *2011-10-29, version 2.01.05* This is an excellent electronic slide rule. It is easy to use and has a reasonable number of scales. It is perfect for he novice or the collector. It is great if you are on the go. I would like more documentation. Bravo to the creator. ### 4/5 — Almost perfect *2011-08-14, version 2.00.06* I would have rated this app a 5 star except that the slide reverts to closed when you flip to the back side of the rule. ### 5/5 — Really? *2011-07-16, version 2.00.06* Had a hard time believing my eyes...make that my anal eyes. Woke my wife up searching for my ancient Dietzgen multiplex manual. Found it though and this app is guaranteed to keep me up all night. Great app though I'm worried there aren't enough of us old dudes left to give it it's well deserved appreciation. ### 5/5 — Beautiful app *2011-06-29, version 2.00.06* This is really a fantastic app. It works exactly like the real thing, and it is terrific to look at. It's a great app for a math or science teacher to show to his class. This app keeps a part of math history alive. I love it. ### 5/5 — Great App! *2011-04-11, version 1.0* It's not just for geeks anymore! The "Virtual Slide Rule" app has instructions so even people not familiar with how to use one can learn - like me. Always wanted to know & now I can. ### 5/5 — Virtual Incarnation of a great tool! *2011-03-30, version 1.0* In high school and college my slide rule was an essential tool in Chemistry. Physics, and Math classes. Now I have this really cool reincarnation of a classic and it works great on the iPad. It also brings back all the great memories of those times back in school. And if you've never used a slide rule, the instructions make it straightforward to learn. And for those Millennials in the crowd, it's a unique app to have on your iPad. Kudos to Interrobang Group! ## Frequently asked questions about Virtual Slide Rule ### What is Virtual Slide Rule? Virtual Slide Rule is a digital recreation of the classic slide rule, a tool historically used for complex calculations. It allows users to learn and operate this device on their iPad. ### How much does Virtual Slide Rule cost? Virtual Slide Rule is a paid application, priced at $1.99. This one-time purchase grants you access to its features. ### What devices support Virtual Slide Rule? Currently, Virtual Slide Rule is supported on iPads. It is designed to take advantage of the larger screen size for a better user experience. ### What is the age rating for Virtual Slide Rule? Virtual Slide Rule has an age rating of 4+, making it suitable for a wide range of users, including younger learners interested in math tools. ### How often is Virtual Slide Rule updated? The app's last update was on May 25, 2017, with version 3.01.04. While not frequently updated recently, it offers a stable experience for its core functionality. ### What do users think of Virtual Slide Rule? User feedback is highly positive, with an average rating of 4.8 stars from 4 ratings. This suggests a strong user satisfaction with the app's functionality and educational value. ### Does Virtual Slide Rule have ads? As a paid application, Virtual Slide Rule does not contain advertisements. Users can enjoy the full functionality without interruption. ### What new features does Virtual Slide Rule offer? The latest version of Virtual Slide Rule includes a new zoom feature, enhancing usability and making it easier to interact with the virtual slide rule. ## Version history (last 1 release) ### 3.01.04 — 2017-05-25 This app has been updated by Apple to display the Apple Watch app icon. OS support and new zoom feature. ## Apps similar to Virtual Slide Rule | App | Rating | Price | Category | | --- | --- | --- | --- | | [LocalBTV](https://appshunter.io/ios/app/localbtv/id1158287847) | 3.7 (109) | Free | Entertainment | | [History Hit](https://appshunter.io/ios/app/history-hit/id1303668247) | 4.5 (1,096) | Free | Entertainment | | [Spider-Man Game Stickers](https://appshunter.io/ios/app/spider-man-game-stickers/id1434499797) | 4.6 (60) | $1.99 | Entertainment | | [iSpy Cameras (Ad Supported)](https://appshunter.io/ios/app/ispy-cameras-ad-supported/id757081283) | 4.6 (2,037) | Free | Entertainment | | [Ovation NOW](https://appshunter.io/ios/app/ovation-now/id1265891920) | 3.0 (137) | Free | Entertainment | | [Tarot!](https://appshunter.io/ios/app/tarot/id543929148) | 4.9 (1,470) | $3.99 | Entertainment | ## More apps by Bob Gordon - [Any Day](https://appshunter.io/ios/app/any-day/id348551901) - [Judger](https://appshunter.io/ios/app/judger/id377665094) - [7Letters](https://appshunter.io/ios/app/7letters/id1520085532) - [Answer Jini](https://appshunter.io/ios/app/answer-jini/id1553119204) - [Namester](https://appshunter.io/ios/app/namester/id6444921353) All apps by Bob Gordon: https://appshunter.io/developer/346501469 --- *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 2026-06-10.*