# Time Observation Calculator — Streamline your Lean work > All-in-one pocket tool for precise time studies and workflow optimization. (iPhone/iPad app by Aaron Davidson.) - Source: https://appshunter.io/ios/app/time-observation-calculator/id6749908335 (this page in markdown: same URL + `.md`) - Developer: [Aaron Davidson](https://appshunter.io/developer/1832803581) - Category: Business, Utilities - Price: $19.99 - Rating: 5.00/5 from 3 App Store ratings · 3 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 7 MB - Languages: American English - Released: 2025-09-05 - Data updated: 2026-06-01 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/time-observation-calculator/id6749908335/reviews.md ## What is Time Observation Calculator? 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. ## Key features - Built-in stopwatch for data capture - Instant analysis of results - Capture key data points and notes - Streamlines time studies - Optimizes workflow efficiency - Supports Kaizen, SMED, and Gemba walks ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/time-observation-calculator/id6749908335/reviews.md ### 5/5 — Great for use in Time Studies or Observations *2025-09-05* Use it all the time at work. It’s great and speed up our ability to focus on improving work and not wasting time. ### 5/5 — Great app *2025-09-05* 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. ### 5/5 — Amazing and Easy to Use App *2025-09-05* 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. ## Frequently asked questions about Time Observation Calculator ### What is Time Observation Calculator used for? Time Observation Calculator is designed to streamline time studies for continuous improvement initiatives like Kaizen, SMED, and Gemba walks. It helps professionals and students capture precise data, analyze results instantly, and optimize workflows. ### What are the key features of Time Observation Calculator? Key features include an intuitive built-in stopwatch for data capture, instant calculation of results for SMED and Gemba events, and the ability to capture key data points, notes, and observations to improve efficiency and reduce waste. ### Who is the target audience for Time Observation Calculator? The app is ideal for professionals and students involved in Lean and Kaizen methodologies, including those in industrial engineering and manufacturing, who are dedicated to continuous improvement and workflow optimization. ### What devices does Time Observation Calculator support? Time Observation Calculator is available for iPhone, iPad, and iPod devices, offering a convenient pocket solution for time studies. ### How much does Time Observation Calculator cost? Time Observation Calculator is a paid application, priced at $19.99. There are no in-app purchases or advertisements. ### Is Time Observation Calculator suitable for beginners? Yes, the app is designed with an intuitive interface, making it accessible for both professionals and students learning about Lean and Kaizen methodologies. It simplifies complex time study processes. ### How often is Time Observation Calculator updated? The app was last updated on February 18, 2026, with a 'New UI Menu' version. This indicates ongoing development and potential for future improvements. ### Does Time Observation Calculator have ads? No, Time Observation Calculator does not contain advertisements. It is a paid application that offers an ad-free experience for users. ## Version history (last 5 releases) ### New UI Menu — 2026-02-18 Updated the UI and squashed some bugs to create a better experience. ### 1.0.5 — 2026-01-22 Rebuilt to make it faster. ### 1.0.3 — 2025-10-08 Minor bugs squashed and a new retro icon added. ### 1.0.2 — 2025-09-18 New retro icon. ### 1.0.1 — 2025-09-09 Small quality of life tweaks. ## Apps similar to Time Observation Calculator | App | Rating | Price | Category | | --- | --- | --- | --- | | [Deltek Vision Time & Expense](https://appshunter.io/ios/app/deltek-vision-time-and-expense/id577435836) | 1.5 (182) | Free | Business | | [RevenueCat Mobile](https://appshunter.io/ios/app/revenuecat-mobile/id6504531798) | 4.9 (996) | Free | Business | | [ViewSpection Plus](https://appshunter.io/ios/app/viewspection-plus/id1448816539) | 2.6 (5) | Free | Business | | [Deltek T&E for Vantagepoint](https://appshunter.io/ios/app/deltek-t-and-e-for-vantagepoint/id1387485560) | 4.4 (4,833) | Free | Business | | [Insperity Mobile](https://appshunter.io/ios/app/insperity-mobile/id674606949) | 4.7 (45,777) | Free | Business | | [FastField: Field Service Forms](https://appshunter.io/ios/app/fastfield-field-service-forms/id702967051) | 4.6 (16,157) | Free | Business | ## More apps by Aaron Davidson - [Gemba Toolkit: Lean Tools](https://appshunter.io/ios/app/gemba-toolkit-lean-tools/id6759291796) All apps by Aaron Davidson: https://appshunter.io/developer/1832803581 --- *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 2026-06-01.*