# Gantt Viewer vs GanttMaster

The clearest difference is review sentiment: GanttMaster at 100% against Gantt Viewer's 0%. GanttMaster also leads on update cadence (weekly vs every 5 months) and device support (3 vs 1). Gantt Viewer's advantage is ads (none vs shown) and iOS requirement (8.0 vs 15.1). On price, in-app purchases and monetization model there is nothing between them.

Both are free to download. Gantt Viewer sells 1 one-off in-app purchase and GanttMaster sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Gantt Viewer ships an update every 5 months, GanttMaster weekly. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Gantt Viewer | GanttMaster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/gantt-viewer/id654944245/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 17 MB | 48 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Artezio LLC](https://appshunter.io/developer/595916023) | [Meva Aise Onyurt](https://appshunter.io/developer/1813218364) |

## What reviewers say

### Gantt Viewer

[App page](https://appshunter.io/ios/app/gantt-viewer/id654944245)

This application allows users to view Microsoft Project files on their mobile devices. It supports various project views, including Gantt charts and resource usage, with intuitive touch gestures for navigation. Projects can be added from external sources like email and cloud storage.

**Highlights:** View Microsoft Project files (MPP/MPPX), Gantt Chart, Resource Usage, Task Usage views, Touch-based navigation with gestures, Add projects from Email, Dropbox, etc., Direct access from cloud storage

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gantt Viewer full version | Free | one-time |


### GanttMaster

[App page](https://appshunter.io/ios/app/ganttmaster-project-manager/id6745624000)

This tool helps teams and individuals plan, track, and collaborate on projects. Visualize timelines with Gantt charts, manage tasks, and gain insights with detailed reports. Ideal for remote teams and businesses of all sizes.

**Highlights:** Task and subtask management, Interactive Gantt project timeline, Team collaboration tools, Mobile-friendly project management, Real-time notifications, Role-based access control, Detailed reports and insights, Advanced task dependencies

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $5.99 | per month |
| Premium Annual | $34.99 | per year |


## Frequently asked questions

### Is Gantt Viewer free?

Gantt Viewer is free to download, with in-app purchases available.

### Is GanttMaster free?

GanttMaster is free to download, with in-app purchases available.

### Do Gantt Viewer or GanttMaster have ads?

GanttMaster shows ads; Gantt Viewer does not.

### Which is updated more often, Gantt Viewer or GanttMaster?

Gantt Viewer ships an update every 5 months, and GanttMaster weekly. Most recently, Gantt Viewer was updated on November 1, 2026 and GanttMaster on October 30, 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.*