# Lean Work Sampling - Lean Tool — Statistical Activity Analysis

> Statistical Activity Analysis (iPhone/iPad app by Herve Kasparian.)

- Source: https://appshunter.io/ios/app/lean-work-sampling-lean-tool/id1256690217 (this page in markdown: same URL + `.md`)
- Developer: [Herve Kasparian](https://appshunter.io/developer/1232851521)
- Category: Productivity
- Price: Free with in-app purchases (on sale, was $1.99)
- Age rating: 4+
- Requires: iOS 15.6 · 5 MB
- Languages: English, French
- Released: 2017-07-07
- Data updated: 2026-06-04
- User reviews in markdown: https://appshunter.io/ios/app/lean-work-sampling-lean-tool/id1256690217/reviews.md

## What is Lean Work Sampling?

The sampling analysis is a statistical method that quantify the different activities of an operator. When activities are labeled as "added value" or "non added value", it gives you the red/green scheme.

This app facilitate the implementation of this method:
- note your observations by a simple "tap" 
- see the graphs being constructed in real time
- export your data in Excel !
- save as many configurations as needed
 
Sampling analysis is often a teamwork : once you've created a configuration, you can send it by mail to the colleagues of your who have the same app ! Summing-up the results will be a lot easier !

Activity Sampling is used in the industry (Lean Manufacturing) and services, and also for specialized education (quantification of language improvement,...).

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Small Tip | $1.99 | one-time |
| Large Tip | $7.99 | one-time |



## Version history (last 5 releases)

### 3.4 — 2026-05-31

Standardization of some settings with version 3.0 of the 'GraphicChrono' app

### 3.3 — 2026-03-14

Minor improvements

### 3.1 — 2026-02-22

Bug fix

### 3.0 — 2025-11-03

- Program a haptic reminder to randomly pace your sampling
- Export graphs to PDF

### 2.2 — 2025-09-07

You can now configure up to 8 workstations to monitor simultaneously

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| [Lean Apps](https://appshunter.io/ios/app/lean-apps/id1347795759) | — | $5.99 | Productivity |
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## More apps by Herve Kasparian

- [Industrial stopwatch cmin](https://appshunter.io/ios/app/industrial-stopwatch-cmin/id1232851522)
- [VAS - Visual Analog Scale](https://appshunter.io/ios/app/vas-visual-analog-scale/id1241222362)
- [Dual Industrial Stopwatch](https://appshunter.io/ios/app/dual-industrial-stopwatch/id1252068358)
- [Work Sampling Lite - Lean Tool](https://appshunter.io/ios/app/work-sampling-lite-lean-tool/id1257258120)
- [RainbowDice](https://appshunter.io/ios/app/rainbowdice/id1262764178)

All apps by Herve Kasparian: https://appshunter.io/developer/1232851521

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*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 2026-06-04.*