# Lean Work Sampling vs MAPPSY | DS

The clearest difference is in-app purchases: MAPPSY | DS at none against Lean Work Sampling's 2. MAPPSY | DS also leads on update cadence (every 5 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Lean Work Sampling sells 2 one-off in-app purchases. MAPPSY | DS asks for nothing beyond the download.

Lean Work Sampling ships an update every 3 months, MAPPSY | DS every 5 weeks. The most recent releases landed on October 9, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Lean Work Sampling | MAPPSY | DS |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Monetization | — | Free |
| Size | 5 MB | 297 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Herve Kasparian](https://appshunter.io/developer/1232851521) | [HLP Services](https://appshunter.io/developer/1444995965) |

## What reviewers say

### Lean Work Sampling

[App page](https://appshunter.io/ios/app/lean-work-sampling-lean-tool/id1256690217)

**Features:** macOS Compatibility

**In-app purchases (2)**

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


### MAPPSY | DS

[App page](https://appshunter.io/ios/app/mappsy-ds/id1457348972)

This application provides a digital shop floor solution for real-time performance management, problem-solving, and continuous improvement. It offers intuitive tools for operators, support teams, and management to enhance communication, streamline processes, and track key indicators.

**Highlights:** Real-time performance monitoring, Problem declaration and resolution, Standard compliance audits, Action and task management, Document consultation, Continuous improvement suggestions, Real-time communication

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Lean Work Sampling free?

Lean Work Sampling is free to download, with in-app purchases available.

### Is MAPPSY | DS free?

MAPPSY | DS is free to download, with no in-app purchases.

### Do Lean Work Sampling or MAPPSY | DS have ads?

Neither Lean Work Sampling nor MAPPSY | DS shows ads.

### Which is updated more often, Lean Work Sampling or MAPPSY | DS?

Lean Work Sampling ships an update every 3 months, and MAPPSY | DS every 5 weeks. Most recently, Lean Work Sampling was updated on October 9, 2026 and MAPPSY | DS on October 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*