# LEPSI - Watch Scope > Measures watch performance metrics like rate variation, amplitude, and beat error. (iPhone/iPad app by LEPSI SARL.) - Source: https://appshunter.io/ios/app/lepsi-watch-scope/id994955418 (this page in markdown: same URL + `.md`) - Developer: [LEPSI SARL](https://appshunter.io/developer/590525672) - Category: Utilities, Productivity - Price: Free - Rating: 1.50/5 from 2 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 8.0 · 21 MB - Languages: English, French, German, Japanese, Chinese - Released: 2015-06-03 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/lepsi-watch-scope/id994955418/reviews.md ## What is LEPSI? (ONLY WORKS WHEN CONNECTED TO THE LEPSI - WATCH SCOPE SUPPORT) WATCH SCOPE, THE EXCLUSIVE SOLUTION FOR A FULL CHECK UP OF YOUR TIMEPIECES. The Watch Scope can measure the performances of your watch (rate variation, amplitude, beat error) in just a few seconds. 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 Scope will take care of everything. Absolutely user-friendly! HIGHEST MEASUREMENT ACCURACY After calibrating your touchpad against atomic clocks, the Watch Scope 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. 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 watch collections - Detects watch deviations and service needs - User-friendly interface ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/lepsi-watch-scope/id994955418/reviews.md ### 1/5 — Lame *2019-09-14, version 2.30* App won’t even attempt to take a reading with your own microphones - it required a product code from their overpriced sensors($250!) to access the app. Save your money and just buy a timegrapher, or just use a different app. ## Frequently asked questions about LEPSI ### Does LEPSI - Watch Scope require a separate device? Yes, LEPSI - Watch Scope only works when connected to the LEPSI - Watch Scope support device. This support device connects to your touchpad via a 3.5mm jack and does not require a separate mains supply. ### What specific watch metrics can LEPSI - Watch Scope measure? LEPSI - Watch Scope can measure rate variation from -200 s/d to +200 s/d, amplitude from 80° to 360°, and beat error from 0 to 10 ms. It offers a resolution of 0.1 s/d for rate variation and beat error, and 1° for amplitude. ### How accurate are the measurements provided by LEPSI - Watch Scope? The app provides exceptional measurement accuracy, meeting the highest quality requirements of professional watchmakers. After calibrating your touchpad against atomic clocks, it measures accuracy with a resolution of 0.1 s/d. ### Can LEPSI - Watch Scope help manage multiple watches? Yes, the Watch Analyzer feature allows you to manage your full collection of watches. It records all your measurements, enabling you to detect deviations and determine when a watch might need servicing. ### What is the user sentiment for LEPSI - Watch Scope? Based on the available data, LEPSI - Watch Scope has a rating of 1.5 stars from 2 ratings, indicating a generally negative user sentiment. Users may be experiencing issues with its functionality or performance. ### How often is LEPSI - Watch Scope updated? The app was last updated on March 30, 2018, with version 2.30. This suggests that the app has not received updates for a significant period, which could be a concern for users seeking ongoing support or new features. ### Is LEPSI - Watch Scope suitable for all ages? LEPSI - Watch Scope has an age rating of 4+, meaning it is considered appropriate for children aged 4 and above. The app's utility focuses on technical measurements rather than content unsuitable for younger audiences. ### What devices are supported by LEPSI - Watch Scope? LEPSI - Watch Scope is supported on iPhone, iPad, and iPod devices. This broad compatibility ensures that users with Apple mobile devices can utilize its watch measurement capabilities. ## Version history (last 1 release) ### 2.30 — 2018-03-30 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 | | --- | --- | --- | --- | | [CalcuLatte](https://appshunter.io/ios/app/calculatte/id1464511080) | — | Free | Utilities | | [Siemens Healthineers Events](https://appshunter.io/ios/app/siemens-healthineers-events/id1462867980) | — | Free | Utilities | | [D4H Personnel & Training](https://appshunter.io/ios/app/d4h-personnel-and-training/id1456365440) | 3.0 (11) | Free | Utilities | | [安泰考培宝典](https://appshunter.io/ios/app/id1455455260) | — | Free | Utilities | | [A-note](https://appshunter.io/ios/app/a-note/id1454807560) | — | Free | Utilities | | [GrusHome](https://appshunter.io/ios/app/grushome/id1455196140) | 5.0 (1) | Free | Utilities | ## More apps by LEPSI SARL - [LEPSI - Watch Analyzer](https://appshunter.io/ios/app/lepsi-watch-analyzer/id905026767) - [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.*