Thank you for your good words and 4 stars rating. Yes, 3 people are volunteering their time, away from their jobs and other activities to keep inventing new and awesome apps.We are considering adding more measurements. Technically it is possible, just time to implement. The greatest challenge is how to keep the interface simple with more functionality. Also, with additional measurements, we could provide more health monitors. For example, Army Body Fat Calculator needs neck size.Also, we believe many would found helpful if we could mathematically calculate body type(Somatotype): ectomorph, mesomorph or endomorph.However, the very next thing, right after the Emotion app update, we plan to work on the Body Size app addressing issues several people reported where their sex, height, and weight did not get pulled from Apple Health. Likely it is a permission issue.

Thank you for providing us with your insightful feedback. I have shared it with our team, and we are thrilled to learn that our app has been beneficial for its users. I have good news, we plan to release a new version very soon and it would have even better tools. As an improvement, we've included charts for measurements, monthly views, and monitors to provide a more comprehensive view of progress in each category over time. Additionally, we've added segmented bars to all monitors to enhance the visualization of your current state.

Thank you for the detailed feedback. We understand your concern, but we want to clarify how the app works to get you the accurate data you need.Unlike gym scales that use electrical sensors (bioimpedance), our app relies on anthropometric science. The app is designed to calculate these stats automatically based on the relationships between your body dimensions.To fix the "incorrect" metrics, please try these two steps:1️⃣ Enter all measurements: If you leave fields (like neck, waist, or hips) empty, the app uses statistical averages to fill in the gaps, which causes the "random" results you are seeing. Please fill in all measurement fields, and the equations will update to reflect your specific physique.2️⃣ Check the Formula Sources: Since bodies vary, we offer multiple calculation methods developed by physicians over the last 50 years. Tap the upper right corner of any stat (like Body Fat %) to switch formulas. We now provide a detailed description and the academic source/citation for every formula, so you can read exactly how the math works and choose the one that aligns best with your gym's data.Regarding synchronization with specific gym apps like DDX: We have actually received similar requests from several users over the past year. While we don't have a direct integration ready just yet, we are planning to introduce a broad Data Import & Export feature in our next major version. This should allow you to transfer data from various external sources into our app.We are a small indie team building this without big investors, so we truly appreciate your feedback. If our explanation helps you get better utility from the app, please consider updating your rating—it really helps us survive and keep improving!__UPDATE TO YOUR LAST COMMENT:You’re absolutely right: when fat, muscle, water, and dry mass are estimated incorrectly, all derived metrics (including biological age and longevity) become inaccurate. These values are currently calculated using anthropometric formulas, which can differ from real measured data. Your suggestion to allow manual input of verified biometrics is very valid, and we’ve shared it with our product team.If you’re open to it, please feel free to write to our support email — it’s much easier for us to have a proper conversation there and discuss improvements in more detail.

Thanks for the great feedback—and perfect timing with your question! We just wrapped up an internal presentation on the new interface for our next app release, and the input system was one of the most debated topics. Most of the team prefers typing in numbers, while others like the simplicity of plus/minus buttons. Our designers are now exploring ways to combine the best of both worlds.If you have suggestions on how to make it work smoothly—or if there’s a feature you’d love to see in the next version—now is the perfect time to let us know! Just drop us an email.And if this answered your question, we’d really appreciate it if you’d consider bumping your rating to 5 stars—it makes a big difference for the team’s motivation. 😊