# LEPSI - Watch Analyzer > Measures mechanical watch performance metrics like rate variation, amplitude, and beat error. (iPhone/iPad app by LEPSI SARL.) - Source: https://appshunter.io/ios/app/lepsi-watch-analyzer/id905026767 (this page in markdown: same URL + `.md`) - Developer: [LEPSI SARL](https://appshunter.io/developer/590525672) - Category: Utilities, Productivity - Price: Free - Rating: 1.00/5 from 2 App Store ratings - Age rating: 4+ - Requires: iOS 11.0 · 21 MB - Languages: English, French, German, Japanese, Chinese - Released: 2014-09-22 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/lepsi-watch-analyzer/id905026767/reviews.md ## What is LEPSI? (ONLY WORKS WHEN CONNECTED TO THE LEPSI - WATCH ANALYZER SUPPORT) WATCH ANALYZER, THE EXCLUSIVE SOLUTION FOR A FULL CHECK UP OF YOUR TIMEPIECES. The Watch Analyzer can measure the performances of your watch (rate variation, amplitude, beat error) in just a few seconds. The Watch Analyzer is the result of a subtle mix between the highest technology and the most exquisite craftsmanship. Simple, elegant, compact, it is the first ever- developed instrument with such exceptional measurement accuracy. SMART USER A smart-user instrument for watch measurement. Connect the support to your touchpad, click on start, and the Watch Analyzer will take care of everything. Absolutely user-friendly! HIGHEST MEASUREMENT ACCURACY After calibrating your touchpad against atomic clocks, the Watch Analyzer will measure the accuracy rate of your watch with a resolution of 0.1 s/d. The accuracy of its measurement meets the highest quality requirements of the professional watchmakers. SMART You have several watches, the Watch Analyzer can take care of your full collection and records all your measurements. You will thus be able to detect the deviation of your watches and decide when it is time for one to be serviced. ELEGANT The utmost care was paid to the design of the support in handmade leather. We can meet special customer orders in unique colors or hides and skins. MULTIPOSITIONAL Place your watch on the leather pad and insert it on the support. You will then easily measure your watch performances in 6 different positions in accordance with watchmaking standards. DIMENSIONS 73x60x80mm CONNECTIVITY Jack 3,5mm (No separate mains supply) MEASURING RANGE Rate variation: -200 s/d to +200 s/d (resolution 0,1 s/d) Amplitude 80° to 360° (resolution 1°) Beat error 0 to 10 ms (resolution 0,1 ms) ## Key features - Measures rate variation, amplitude, and beat error - High measurement accuracy (0.1 s/d resolution) - Records measurements for entire watch collections - Detects deviations and indicates service needs - Measures in 6 different positions - User-friendly interface ## Frequently asked questions about LEPSI ### Does LEPSI - Watch Analyzer work without the support device? No, LEPSI - Watch Analyzer exclusively functions when connected to the LEPSI - Watch Analyzer support device. The application itself is the software interface for the hardware. ### What specific performance metrics does LEPSI - Watch Analyzer measure? LEPSI - Watch Analyzer measures rate variation (from -200 s/d to +200 s/d), amplitude (from 80° to 360°), and beat error (from 0 to 10 ms). ### How accurate are the measurements provided by LEPSI - Watch Analyzer? The application offers high measurement accuracy, with a resolution of 0.1 s/d for rate variation, 1° for amplitude, and 0.1 ms for beat error, meeting professional watchmaker standards. ### Can LEPSI - Watch Analyzer track multiple watches? Yes, LEPSI - Watch Analyzer can manage and record measurements for your entire watch collection, allowing you to monitor the performance of each timepiece over time. ### What devices is LEPSI - Watch Analyzer compatible with? LEPSI - Watch Analyzer is designed for use on iPhones, iPads, and iPods. It connects via a 3.5mm jack and does not require a separate mains supply. ### How often is LEPSI - Watch Analyzer updated? The latest version, 2.30, was released on August 9, 2018. While updates have not been frequent recently, the app has been stable since its last update. ### What is the user sentiment for LEPSI - Watch Analyzer? Based on the provided data, LEPSI - Watch Analyzer has a rating of 1.0 stars from 2 ratings, indicating a very low user satisfaction level. ### Is LEPSI - Watch Analyzer free to use? Yes, LEPSI - Watch Analyzer is available for free. However, it requires the purchase of the dedicated LEPSI - Watch Analyzer support device to function. ## Version history (last 1 release) ### 2.30 — 2018-08-09 This app has been updated by Apple to display the Apple Watch app icon. Language bug fixed Improved lightning compatibility ## Apps similar to LEPSI | App | Rating | Price | Category | | --- | --- | --- | --- | | [A-note](https://appshunter.io/ios/app/a-note/id1454807560) | — | Free | Utilities | | [安泰考培宝典](https://appshunter.io/ios/app/id1455455260) | — | Free | Utilities | | [小城经纪人](https://appshunter.io/ios/app/id1459829320) | — | Free | Utilities | | [Livly Hub](https://appshunter.io/ios/app/livly-hub/id1464225200) | 4.7 (13) | Free | Utilities | | [Aloha VPN](https://appshunter.io/ios/app/aloha-vpn/id1455494920) | 4.3 (345) | Free | Utilities | | [Komobi Moto](https://appshunter.io/ios/app/komobi-moto/id1456290000) | — | Free | Utilities | ## More apps by LEPSI SARL - [LEPSI - Watch Scope](https://appshunter.io/ios/app/lepsi-watch-scope/id994955418) - [LEPSI - Watch PRO](https://appshunter.io/ios/app/lepsi-watch-pro/id1039889250) - [LEPSI - Watch MAGNETISM](https://appshunter.io/ios/app/lepsi-watch-magnetism/id1080183882) - [Live Diag](https://appshunter.io/ios/app/live-diag/id1203676085) - [Analyzer Vacheron](https://appshunter.io/ios/app/analyzer-vacheron/id1438226472) All apps by LEPSI SARL: https://appshunter.io/developer/590525672 --- *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.*