# Gantt Viewer vs Project Express

The clearest difference is review sentiment: Project Express at 56% against Gantt Viewer's 0%. Project Express also leads on rating (5.0 vs 1.0) and device support (3 vs 1). Gantt Viewer's advantage is monetization model (free with in-app purchases vs paid) and iOS requirement (8.0 vs 26.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Gantt Viewer sells 1 one-off in-app purchase and Project Express sells 4 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Project Express holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 0% of Gantt Viewer's written reviews are positive against 56% of Project Express's.

Gantt Viewer ships an update every 5 months, Project Express every 4 months. Both last shipped on October 8, 2026.

## The numbers

| Metric | Gantt Viewer | Project Express |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/gantt-viewer/id654944245/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/project-express/id1000572686/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 0.0% of reviews | **56.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 months** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 17 MB | 20 MB |
| Requires iOS | **8.0** | 26.0 |
| Devices | iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Artezio LLC](https://appshunter.io/developer/595916023) | [Internet Stack](https://appshunter.io/developer/468039511) |

## 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 |


### Project Express

[App page](https://appshunter.io/ios/app/project-express/id1000572686)

Manage projects and tasks efficiently from any location. Visualize progress with list or timeline views and easily share project updates via PDF export. Organize work and home projects with detailed notes and color-coding.

**Highlights:** Task scheduling and progress updates, List and timeline (Gantt Chart) views, Project sharing via PDF export, Organize projects into groups, Add detailed notes and resources, Color-coded projects

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro - Monthly | $9.99 | per month |
| Team - Monthly | $12.99 | per month |
| Pro - Yearly | $99.99 | per year |
| Team - Yearly | $129.99 | per year |


## Frequently asked questions

### Is Gantt Viewer free?

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

### Is Project Express free?

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

### Which has better reviews, Gantt Viewer or Project Express?

Project Express is rated higher. Gantt Viewer averages 1.0 out of 5 from 2 ratings, while Project Express averages 5.0 from 1 ratings.

### Do Gantt Viewer or Project Express have ads?

Neither Gantt Viewer nor Project Express shows ads.

### Which is updated more often, Gantt Viewer or Project Express?

Gantt Viewer ships an update every 5 months, and Project Express every 4 months. Most recently, Gantt Viewer was updated on October 8, 2026 and Project Express on October 8, 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.*