--- title: "Time Observation Calculator - Reviews, Revenue and Downloads in United States | Apple App Store" description: "Tired of juggling a stopwatch, notepad, and calculator? There's a better way to do a time study. The Time Study App is an all-in-one solution for continuous improvement, putting a precise Time Observ" --- # Time Observation Calculator — United States > Streamline your Lean work ![Time Observation Calculator App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/53/78/13/537813e3-022a-5614-0a61-91f0e345c61a/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png) **Developer:** [Aaron Davidson](https://apptail.io/developer/aaron-davidson-EWnmkb) **Category:** Business **Rating:** 5.0/5 (3 ratings) **Price:** $19.99 **Bundle ID:** co.median.ios.aaayoxx **Store:** Apple App Store **Country:** United States **Version:** New UI Menu (released 2026-02-18) **Original Release:** 2025-09-05 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6749908335) **AppTail Page:** [https://apptail.io/app/time-observation-calculator-GBTx/united-states](https://apptail.io/app/time-observation-calculator-GBTx/united-states) ## Time Observation Calculator Description Tired of juggling a stopwatch, notepad, and calculator? There's a better way to do a time study. The Time Study App is an all-in-one solution for continuous improvement, putting a precise Time Observation Calculator right in your pocket. Designed for Kaizen, SMED, and Gemba walks, this app helps you: Capture data with an intuitive, built-in stopwatch. Instantly analyze results to make smarter decisions. Get precise data to improve efficiency and reduce waste. Stop manual time studies and start optimizing your workflow. Take control of your time and data to drive meaningful, lasting change. Designed for professionals and students of Lean and Kaizen, this app allows you to: Conduct accurate time studies with an intuitive, built-in stopwatch. Instantly calculate results for your SMED, Gemba, and continuous improvement events. Capture key data points, notes, and observations. Spend less time on manual calculations and more time on what matters—optimizing your workflow. Take control of your time and data to drive meaningful, lasting change. Perfect for industrial engineering, manufacturing, and anyone dedicated to continuous improvement. ## Time Observation Calculator Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/0f/73/39/0f73394d-682c-878a-1b3f-489089a5590a/IMG_8671-3.png/1242x2688.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/b9/90/41/b9904133-66b1-d751-6b56-503f8d683a86/IMG_8668-3.png/1242x2688.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/79/04/f8/7904f8e8-c050-e7a6-ad97-0b5bd33fb055/IMG_8669-3.png/1242x2688.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/47/68/4d/47684dc1-9033-f61e-8f0e-49ddfad406aa/IMG_8670-3.png/1242x2688.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/8e/19/79/8e1979b6-cfaf-13ae-0257-bda4ee399bbc/Chart.png/1242x2688.png) ## Time Observation Calculator Rating Breakdown in United States - 5 stars: 3 (100%) - 4 stars: 0 (0%) - 3 stars: 0 (0%) - 2 stars: 0 (0%) - 1 stars: 0 (0%) ## Time Observation Calculator Reviews in United States ### ***** "Great for use in Time Studies or Observations" Use it all the time at work. It’s great and speed up our ability to focus on improving work and not wasting time. -- CTguy45, 2025-09-05 ### ***** "Great app" I’ve been using this at work now for a few weeks. It’s made life so much easier love the fact that I can use it for our continuous improvement work. -- KaizenMom, 2025-09-05 ### ***** "Amazing and Easy to Use App" This application makes it super easy for my Kaizen teams to collect time observation data during a Kaizen event. It also has great functionality to see frequency trends. I love that you can also easily export and email your data. -- MS33967, 2025-09-05 [View all Time Observation Calculator reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews) ## Apps Similar to Time Observation Calculator - [Time & Motion Study](https://apptail.io/app/time-motion-study-dIab/united-states) - [NinjaRMM Screenshare Utility](https://apptail.io/app/ninjarmm-screenshare-utility-mIub/united-states) - [ePhoneGo2](https://apptail.io/app/ephonego2-Wgqc/united-states) - [dictate2us Record & Transcribe](https://apptail.io/app/dictate2us-record-transcribe-UKTc/united-states) - [TheDOJOApp - School App](https://apptail.io/app/thedojoapp-school-app-sSZi/united-states) - [My Home Mortgage](https://apptail.io/app/my-home-mortgage-kcCj/united-states) - [ViewSpection Plus](https://apptail.io/app/viewspection-plus-YTNj/united-states) - [3DtoMe - Spatial 3D Studio](https://apptail.io/app/3dtome-spatial-3d-studio-Jbbn/united-states) - [Driven Car Wash](https://apptail.io/app/driven-car-wash-vfYn/united-states) - [NinjaOne Assist](https://apptail.io/app/ninjaone-assist-TKbp/united-states) ## Time Observation Calculator Available In - [United States](https://apptail.io/app/time-observation-calculator-GBTx/united-states) - [Dominican Republic](https://apptail.io/app/time-observation-calculator-GBTx/dominican-republic) - [Netherlands](https://apptail.io/app/time-observation-calculator-GBTx/netherlands) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. 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