# Lean PlanDo Flow vs MPP File Viewer

The clearest difference is update cadence: MPP File Viewer at every 5 days against Lean PlanDo Flow's every 2 months. Lean PlanDo Flow's advantage is iOS requirement (15.6 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Lean PlanDo Flow ships an update every 2 months, MPP File Viewer every 5 days. The most recent releases landed on October 9, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Lean PlanDo Flow | MPP File Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/mpp-file-viewer-gantt-chart/id6799043030/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | — | Free with in-app purchases |
| Size | 21 MB | 7 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Lean Station Pte Ltd](https://appshunter.io/developer/1211962440) | [EUTOPIX LABS](https://appshunter.io/developer/1896294696) |

## What reviewers say

### Lean PlanDo Flow

[App page](https://appshunter.io/ios/app/lean-plando-flow/id1552365163)

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

**In-app purchases:** none


### MPP File Viewer

[App page](https://appshunter.io/ios/app/mpp-file-viewer-gantt-chart/id6799043030)

View and inspect Gantt charts, tasks, and resources from Microsoft Project and Primavera P6 schedule files on your Apple devices. Export project information as PDF or CSV for easy sharing. Files are processed locally for privacy.

**Highlights:** Open MPP, MPT, MSPDI, XER, P6 XML, and MPX files, Inspect Gantt charts, tasks, and resources, Browse task hierarchy, Navigate pinch-to-zoom Gantt timeline, Export as PDF or CSV, Print Gantt charts

**Features:** Family Sharing, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Lean PlanDo Flow free?

Lean PlanDo Flow is free to download, with no in-app purchases.

### Is MPP File Viewer free?

MPP File Viewer is free to download, with no in-app purchases.

### Do Lean PlanDo Flow or MPP File Viewer have ads?

Neither Lean PlanDo Flow nor MPP File Viewer shows ads.

### Which is updated more often, Lean PlanDo Flow or MPP File Viewer?

Lean PlanDo Flow ships an update every 2 months, and MPP File Viewer every 5 days. Most recently, Lean PlanDo Flow was updated on October 9, 2026 and MPP File Viewer on October 16, 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.*