# Lefy > Health and fitness app for tracking exercise, sleep, and analyzing data. (iPhone/iPad app by Shenzhen Laikang Biotechnology Co., Ltd.) - Source: https://appshunter.io/ios/app/lefy/id6474987453 (this page in markdown: same URL + `.md`) - Developer: [Shenzhen Laikang Biotechnology Co., Ltd](https://appshunter.io/developer/1722991389) - Category: Sports - Price: Free - Rating: 1.60/5 from 5 App Store ratings · 5 written reviews indexed - Age rating: 17+ - Requires: iOS 12.0 · 86 MB - Languages: English, Chinese - Released: 2024-01-26 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/lefy/id6474987453/reviews.md ## What is Lefy? Lefy APP is an application that combines functions such as health monitoring, exercise tracking, and fitness guidance. The following are some of the main functions and features of the app: Exercise tracking: The app can track users' exercise data, including steps taken, running distance, calories burned, etc., allowing users to better understand their exercise performance. Sports Record: The app can record users' exercise history, display their progress and achievements in the form of charts or data, and motivate them to continue exercising. Health Reminder: The app can set reminders to allow users to complete daily fitness tasks on time or adjust their fitness plans as necessary. Data analysis: The app can provide detailed analysis of users' health and exercise data, helping them better understand their physical condition and fitness performance. Sleep monitoring: The app can track the user's sleep quality, including deep sleep time, light sleep time, etc., and provide corresponding suggestions and feedback. The above are just some common functions and features of sports watch apps. In fact, these apps may have more innovative features to meet the various needs of users. ## Key features - Exercise tracking (steps, distance, calories) - Sports record and progress charts - Health reminders for fitness tasks - Detailed data analysis - Sleep quality monitoring ## Recent user reviews (5 of 5) All indexed reviews: https://appshunter.io/ios/app/lefy/id6474987453/reviews.md ### 1/5 — Close to useless. *2025-03-26* No instructions. No support. Minimal functionality in monitoring health ratings. Zero tracking of exercise activities, or steps. The RingX advertised features are negated because the APP is in serious need of a fix. ### 4/5 — New prototype start up Company *2025-03-13* Absolutely love this product. Hard 10 out of 10. I have a size 11 titanium ring that I’ve worn every day on my right ring finger for the last three months. It’s very durable and accurate. I first began backing this project back in June 2024. Yes, it took six months for me to receive this prototype. If you are under the impression that you are going to get a prototype item that you’ve backed on Indiegogo within 4 to 6 weeks, then you are either not in the right mindset or do not understand how Indiegogo/investing in future projects work. Patience is essential when dealing with new projects. Especially when a start-up company is probably only 5 to 10 people. The app is currently under development and is literally on version 1.0.15. (for context Fitbit is currently on version 4.8 after being around for over 10+ years) Yes, there are a few bugs; however, between the software and hardware, it does what they claim it will do, which is the first on-demand accurate (from my usage) blood pressure check. Keep in mind, if you’re expecting something much like a Fitbit/Garmin/Apple Watch-style app integration, then you’ll need to wait at least 5 to 10 years for those companies to release some kind of technology like this. This is literally a cutting-edge product that you are investing in and backing. Please be understanding and be patient as an investor. That is what Indiegogo is all about. Thank you to the developers for this amazing item and all your hard work. ### 1/5 — Worthless app controlling a worthless health product *2025-03-02* Purchased 2 of the X-rings with one actually arriving. while they look nice, they do very little — the app controls no data collection unless it is manually & forgets the data after a few days, making trend analysis impossible. Product was pushed by Indigogo & has received several 100 negative comments/reviews. Appears to be an expensive scam — don’t bother. ### 1/5 — Worthless App *2025-02-02* App runs and connects to Ring X but does not do any auto tracking, only allows checking measurements manually through the app. Default is step count off but no way to turn it on. Link to app support only goes to ads, so no way to contact a support person. Virtually useless ring and app in the current state. ### 1/5 — Don’t be fooled *2024-12-11* There’s no point in even attempting to use this app. The product, Ring X, does not exist. It’s a failed indiegogo scam. ## Frequently asked questions about Lefy ### What kind of exercise data does Lefy track? Lefy tracks exercise data including steps taken, running distance, and calories burned. This allows users to better understand their exercise performance and progress over time. ### Does Lefy offer offline play? The provided description does not specify if Lefy offers offline play. However, its core functions like tracking and data analysis are typically designed to work with or without an internet connection once set up. ### How does Lefy help with motivation? Lefy motivates users by recording their exercise history and displaying progress and achievements in charts or data. It also provides health reminders to help users stay on track with their fitness goals. ### What is the age rating for Lefy? Lefy has an age rating of 17+. This is based on the provided app data and indicates content suitable for mature audiences. ### How often is Lefy updated? Lefy was last updated on December 11, 2024, with version 1.0.15. This suggests a relatively recent update, indicating ongoing development and support. ### What devices does Lefy support? Lefy is supported on iPhone and iPod devices. The app is designed to function on Apple's mobile operating systems. ### What are the main features of Lefy? Lefy's main features include exercise tracking, sports recording with progress charts, health reminders, detailed data analysis, and sleep quality monitoring. ### Does Lefy have ads? No, Lefy does not contain advertisements. The app is free to download and use without any ad interruptions. ## Version history (last 5 releases) ### 1.0.15 — 2024-12-11 1. Modify the English version of the calendar to address the issue of crashing ### 1.0.14 — 2024-12-02 1. Modification of mixed Chinese and English issues 2. Modify some interface UI ### 1.0.13 — 2024-11-07 1. Modify the default language 2. Modify some interfaces 3. Modify SMS prompts ### 1.0.12 — 2024-10-30 1. Modify some UI 2. Modify data synchronization exception ### 1.0.11 — 2024-05-14 1. Optimize the display of ring related parts 2. Optimize link logic 3. New ring related features added (to be compatible with the new version) --- *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.*