# Microsoft Copilot vs Polaris Viewer

The clearest difference is update cadence: Microsoft Copilot at every 4 days against Polaris Viewer's every 3 months. Microsoft Copilot also leads on ratings volume (1.3M vs 74) and chart position (#10 vs unranked). Polaris Viewer's advantage is review sentiment (56% vs 29%) and device support (4 vs 2). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Microsoft Copilot sells 14 in-app purchases, starting at $1.99 per month and Polaris Viewer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Microsoft Copilot against 4.6 for Polaris Viewer. That said, the two scores are not equally well evidenced: Microsoft Copilot has 1.3M ratings behind it against 74, so its average is the more settled of the two. Written reviews are what separate them: 29% of Microsoft Copilot's written reviews are positive against 56% of Polaris Viewer's.

Microsoft Copilot ships an update every 4 days, Polaris Viewer every 3 months. The most recent releases landed on September 27, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Microsoft Copilot | Polaris Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.3M ratings)](https://appshunter.io/ios/app/microsoft-copilot/id541164041/reviews)** | [4.6 (74 ratings)](https://appshunter.io/ios/app/polaris-viewer-pdf-document/id1361508774/reviews) |
| Number of ratings | **1.3M** | 74 |
| Positive reviews | 29.1% of reviews | **56.4% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 4 days** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#10** | — |
| Size | 448 MB | 177 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Vision Pro** |
| Age rating | 12+ | 4+ |
| Developer | [Microsoft Corporation](https://appshunter.io/developer/298856275) | [Polaris Office Corp.](https://appshunter.io/developer/380275428) |

## What reviewers say

### Microsoft Copilot

[App page](https://appshunter.io/ios/app/microsoft-copilot/id541164041)

**Currently charting:** #10 Top Free · Productivity, #26 Top Grossing · Productivity, #127 Top Free (US App Store)

This AI-powered app helps you be more productive at work. Chat with an AI assistant to create content, manage projects, find files, and learn new concepts. It offers voice interaction and expert insights for various tasks.

**Highlights:** Chat with AI assistant, Voice interaction, Find files quickly, Accelerate learning, Generate research reports, Create and edit content, Manage projects with notebooks

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Microsoft 365 Basic | $1.99 | per month |
| Microsoft 365 Personal | $6.99 | per month |
| Microsoft 365 Personal | $9.99 | per month |
| Microsoft 365 Personal | $9.99 | per month |
| Microsoft 365 Family | $12.99 | per month |
| Microsoft 365 Family | $12.99 | per month |
| Microsoft 365 Premium Monthly | $19.99 | per month |
| Microsoft 365 Premium Monthly | $19.99 | per month |
| Microsoft Copilot Pro | $20.00 | per month |
| Microsoft 365 Personal | $99.99 | per year |
| Microsoft 365 Personal | $99.99 | per year |
| Microsoft 365 Family | $129.99 | per year |
| Microsoft 365 Family | $129.99 | per year |
| Microsoft 365 Premium Annual | $199.99 | per year |

**What reviewers like**

- 🚀 Seamless integration of Office apps
- 🔒 Secure cloud storage with OneDrive
- 👍 Convenient all-in-one productivity solution
- 🚀 Great for on-the-go work and collaboration

**What reviewers complain about**

- 🐛 Inconsistent file saving and syncing
- 🔍 Confusing file management and navigation
- 🔍 Limited functionality compared to desktop Office
- 🐛 Frequent crashes and performance issues
- 💰 Subscription-only model, no standalone option

**Reported bugs**

- Documents not saving properly
- Inability to change file names or locations
- Compatibility issues with older devices and OSes
- Unreliable syncing between devices and cloud

**Requested features**

- Allow opening multiple documents side-by-side
- Improve iPad optimization and user experience
- Provide better integration with third-party cloud storage
- Add more advanced formatting and editing capabilities


### Polaris Viewer

[App page](https://appshunter.io/ios/app/polaris-viewer-pdf-document/id1361508774)

This app offers a mobile-optimized experience for viewing various document types, including Microsoft Office files, PDFs, and TXT. It provides smart document management features and supports cloud integration for easy access to your files.

**Highlights:** Mobile optimized document viewer, Supports Microsoft Office, PDF, TXT, Zip, CSV, Cloud storage integration (iCloud, Google Drive, Dropbox, etc.), Smart document management, App lock with fingerprint, face, or password, Night mode and paper texture background options

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $10.99 | one-time |


## Frequently asked questions

### Is Microsoft Copilot free?

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

### Is Polaris Viewer free?

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

### Which has better reviews, Microsoft Copilot or Polaris Viewer?

Microsoft Copilot is rated higher. Microsoft Copilot averages 4.7 out of 5 from 1.3M ratings, while Polaris Viewer averages 4.6 from 74 ratings.

### Do Microsoft Copilot or Polaris Viewer have ads?

Both Microsoft Copilot and Polaris Viewer show ads.

### Which is updated more often, Microsoft Copilot or Polaris Viewer?

Microsoft Copilot ships an update every 4 days, and Polaris Viewer every 3 months. Most recently, Microsoft Copilot was updated on September 27, 2026 and Polaris Viewer on September 26, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*