# Lean Work Sampling vs ARTiTEX Time Study

The clearest difference is in-app purchases: ARTiTEX Time Study at none against Lean Work Sampling's 2. ARTiTEX Time Study also leads on iOS requirement (13.0 vs 15.6). Lean Work Sampling's advantage is update cadence (every 3 months vs every 19 months). On price, ads and device support there is nothing between them.

Both are free to download. Lean Work Sampling sells 2 one-off in-app purchases. ARTiTEX Time Study asks for nothing beyond the download.

Lean Work Sampling ships an update every 3 months, ARTiTEX Time Study every 19 months. The most recent releases landed on September 22, 2026 and May 15, 2026 respectively.

## The numbers

| Metric | Lean Work Sampling | ARTiTEX Time Study |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 19 months |
| Size | 5 MB | 50 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Herve Kasparian](https://appshunter.io/developer/1232851521) | [Artitex GmbH](https://appshunter.io/developer/1561004994) |

## 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 |


### ARTiTEX Time Study

[App page](https://appshunter.io/ios/app/artitex-time-study/id1561004992)

**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 ARTiTEX Time Study free?

ARTiTEX Time Study is free to download, with no in-app purchases.

### Do Lean Work Sampling or ARTiTEX Time Study have ads?

Neither Lean Work Sampling nor ARTiTEX Time Study shows ads.

### Which is updated more often, Lean Work Sampling or ARTiTEX Time Study?

Lean Work Sampling ships an update every 3 months, and ARTiTEX Time Study every 19 months. Most recently, Lean Work Sampling was updated on September 22, 2026 and ARTiTEX Time Study on May 15, 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.*