# USAF EOS Center of Balance > Tool to calculate center of balance for multi-axle vehicles and pallet trains. (iPhone/iPad app by USAF Expeditionary Operations School.) - Source: https://appshunter.io/ios/app/usaf-eos-center-of-balance/id1425999066 (this page in markdown: same URL + `.md`) - Developer: [USAF Expeditionary Operations School](https://appshunter.io/developer/1372166703) - Category: Utilities - Price: Free - Rating: 3.20/5 from 5 App Store ratings · 3 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 32 MB - Languages: English - Released: 2018-08-16 - Data updated: 2026-08-03 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/usaf-eos-center-of-balance/id1425999066/reviews.md ## What is USAF EOS Center of Balance? Center of Balance (CB) Calculator –This app provides users a tool to expeditiously calculate the center of balance for equipment with up to 5 axles and a Pallet Train with up to 10 boxes. The user begins by selecting the number of axles they want to figure out the center of balance for, and a representation of those axles are shown on the screen. The user then annotates the distance from front end (FFE) for each axle and the axle’s weight and the text box where the user inputs data will change from red to green when the data is correct. The user repeats the process for each axle and if all information is entered correctly, the app displays the center of balance for the user. If the data is incorrect, the center of balance will not display. Additionally, the app provides the user with a “Form view” where the numerical calculations are displayed. This is a great benefit that helps members ensure they are annotating the data correctly. After the user is complete with the vehicle or pallet train, they can either start a new vehicle, or quit the application. ## Key features - Calculate center of balance for up to 5 axles - Calculate center of balance for pallet trains with up to 10 boxes - Input axle distance from front end (FFE) - Input axle weight - Real-time data validation (red to green input) - "Form view" for numerical calculation display ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/usaf-eos-center-of-balance/id1425999066/reviews.md ### 5/5 — Gets the job done! *2023-09-28* Gets the job done. Easy to use. Simple app but makes a difference. ### 3/5 — Orientation *2019-11-24* I think the orientation would be better in portrait not landscape. This would make the boxes a little bigger ### 3/5 — Optimizations *2019-06-24* Wish the text boxes were bigger to see and tap on to edit. ## Frequently asked questions about USAF EOS Center of Balance ### What is the USAF EOS Center of Balance app? The USAF EOS Center of Balance app is a utility tool designed to help users calculate the center of balance for equipment. It supports vehicles with up to 5 axles and pallet trains with up to 10 boxes, allowing for precise weight and distance input. ### How does the USAF EOS Center of Balance app validate data? The app features real-time data validation. As users input the distance from the front end (FFE) and weight for each axle, the input text box changes from red to green when the data is correct, ensuring accuracy before calculation. ### What devices support the USAF EOS Center of Balance app? The USAF EOS Center of Balance app is available for iPhone, iPad, and iPod devices. It is designed to function across these Apple platforms. ### What is the rating for the USAF EOS Center of Balance app? The USAF EOS Center of Balance app has a rating of 3.2 stars based on 5 user ratings. This indicates a generally positive but mixed reception from its user base. ### How often is the USAF EOS Center of Balance app updated? The latest version of the USAF EOS Center of Balance app is 1.7.1, which was last updated on October 9, 2025. This suggests a recent update and ongoing maintenance. ### Is the USAF EOS Center of Balance app free to use? Yes, the USAF EOS Center of Balance app is completely free to download and use. There are no costs associated with accessing its features or calculations. ### What is the age rating for the USAF EOS Center of Balance app? The USAF EOS Center of Balance app has an age rating of 4+. This means it is suitable for children aged 4 and older, with no mature content. ### Does the USAF EOS Center of Balance app have ads? No, the USAF EOS Center of Balance app does not contain advertisements. Users can utilize its features without any interruptions from ads. ## Version history (last 3 releases) ### 1.7.1 — 2025-10-09 - Security patches ### 1.7 — 2025-03-05 - Updated iOS target versions ### 1.0 — 2018-08-16 This app has been updated by Apple to display the Apple Watch app icon. ## Apps similar to USAF EOS Center of Balance | App | Rating | Price | Category | | --- | --- | --- | --- | | [Army MobileConnect](https://appshunter.io/ios/app/army-mobileconnect/id1544271575) | 2.1 (96) | Free | Utilities | | [Zulu Time](https://appshunter.io/ios/app/zulu-time/id377289826) | 4.9 (2,577) | $0.99 | Utilities | | [Pay-GPWA](https://appshunter.io/ios/app/pay-gpwa/id1593835535) | 2.4 (28) | Free | Utilities | | [LeaveWeb Mobile](https://appshunter.io/ios/app/leaveweb-mobile/id6453685906) | 3.2 (6) | Free | Utilities | | [Zulu Time Now - UTC GMT Clock](https://appshunter.io/ios/app/zulu-time-now-utc-gmt-clock/id6470394484) | 4.7 (733) | Free | Utilities | | [Boingo for Military](https://appshunter.io/ios/app/boingo-for-military/id1570819268) | 1.3 (522) | Free | Utilities | ## More apps by USAF Expeditionary Operations School - [USAF EOS UDM/IDO Pocket Guide](https://appshunter.io/ios/app/usaf-eos-udmido-pocket-guide/id1372166704) - [USAF EOS Restraint Calculator](https://appshunter.io/ios/app/usaf-eos-restraint-calculator/id1449841147) - [USAF EOS JI Ref Pocket Guide](https://appshunter.io/ios/app/usaf-eos-ji-ref-pocket-guide/id1531764591) - [Airman's Manual](https://appshunter.io/ios/app/airmans-manual/id1533828652) All apps by USAF Expeditionary Operations School: https://appshunter.io/developer/1372166703 ## Related topics [bebalance](https://appshunter.io/ios/topics/bebalance) · [usaf eos restraint calculator](https://appshunter.io/ios/topics/usaf-eos-restraint-calculator) · [havatech weight and balance](https://appshunter.io/ios/topics/havatech-weight-and-balance) · [ebalance](https://appshunter.io/ios/topics/ebalance) --- *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 2026-08-03.*