# iProject Viewer vs PRO2 (Project Professional)

The clearest difference is in-app purchases: PRO2 (Project Professional) at none against iProject Viewer's 2. PRO2 (Project Professional) also leads on update cadence (monthly vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. iProject Viewer sells 2 in-app purchases, starting at $19.99 per year. PRO2 (Project Professional) asks for nothing beyond the download.

iProject Viewer ships an update every 3 months, PRO2 (Project Professional) monthly. The most recent releases landed on October 12, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | iProject Viewer | PRO2 (Project Professional) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (17 ratings)](https://appshunter.io/ios/app/iproject-viewer/id463199295/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 25.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 95 MB | 175 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Housatonic.com](https://appshunter.io/developer/463199298) | [Phinexes](https://appshunter.io/developer/1880134552) |

## What reviewers say

### iProject Viewer

[App page](https://appshunter.io/ios/app/iproject-viewer/id463199295)

View, edit, and create Microsoft Project plans on your iOS device. Access files from cloud storage and email, with advanced editing and viewing options available through in-app purchases.

**Highlights:** Open MS Project files from cloud storage, Create new Gantt charts, Edit and save existing MS Project plans, View Gantt, Task, and Resource Sheets, Advanced sorting and filtering, Network Diagram view, Print project info to PDF

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advanced View-Only | $19.99 | per year |
| Standard Editor | $129.99 | per year |


### PRO2 (Project Professional)

[App page](https://appshunter.io/ios/app/pro2-project-professional/id6759678294)

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

**In-app purchases:** none


## Frequently asked questions

### Is iProject Viewer free?

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

### Is PRO2 (Project Professional) free?

PRO2 (Project Professional) is free to download, with no in-app purchases.

### Do iProject Viewer or PRO2 (Project Professional) have ads?

Neither iProject Viewer nor PRO2 (Project Professional) shows ads.

### Which is updated more often, iProject Viewer or PRO2 (Project Professional)?

iProject Viewer ships an update every 3 months, and PRO2 (Project Professional) monthly. Most recently, iProject Viewer was updated on October 12, 2026 and PRO2 (Project Professional) 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.*