# PDF Viewer vs SobrMate

The clearest difference is review sentiment: PDF Viewer at 89% against SobrMate's 50%. PDF Viewer also leads on rating (4.8 vs 4.4) and ratings volume (235 vs 18). SobrMate's advantage is update cadence (every 10 days vs every 3 months) and iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. PDF Viewer sells 2 in-app purchases, starting at $4.99 per month and SobrMate sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

PDF Viewer holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: PDF Viewer has 235 ratings behind it against 18, so its average is the more settled of the two. Written reviews point the same way: 89% of PDF Viewer's written reviews are positive against 50% of SobrMate's.

PDF Viewer ships an update every 3 months, SobrMate every 10 days. The most recent releases landed on September 8, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | PDF Viewer | SobrMate |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (235 ratings)](https://appshunter.io/ios/app/pdf-viewer-reader-and-editor/id6720703022/reviews)** | [4.4 (18 ratings)](https://appshunter.io/ios/app/sobrmate-days-clean-tracker/id6744226342/reviews) |
| Number of ratings | **235** | 18 |
| Positive reviews | **89.5% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 10 days** |
| Monetization | Freemium | Freemium |
| Size | 11 MB | 90 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Andrew Lee](https://appshunter.io/developer/1206652057) | [Artmvstd SIA](https://appshunter.io/developer/1262774776) |

## What reviewers say

### PDF Viewer

[App page](https://appshunter.io/ios/app/pdf-viewer-reader-and-editor/id6720703022)

Easily convert various file formats to PDF and back again. This app supports conversions from images, documents, and presentations, allowing you to manage and share your files efficiently. It also offers OCR capabilities to convert photos into editable text.

**Highlights:** Convert JPG, Word, Excel, PPT to PDF, Convert PDF to other formats, Share and save converted files, Access conversion history, Pull files from iCloud or gallery, Convert Photos to Text (OCR)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Converter: Premium | $4.99 | per month |
| PDF Converter: Premium | Free | one-time |

**What reviewers like**

- 👍 Easy and intuitive to use
- 🚀 Fast and efficient conversion
- 💰 Free or affordable pricing
- 📄 Excellent PDF conversion and merging capabilities
- 🎨 Clean and simple interface design

**What reviewers complain about**

- 🐛 Forced review prompt before app usage
- ❌ Missing file deletion option
- 📸 No in-app camera scanning capability
- ⚙️ No file size customization options
- 🔄 Inconsistent performance across devices

**Reported bugs**

- App doesn't function on iPad mini (current model)
- Forced review requirement blocks app access
- Document quality issues when converting images to PDF
- Occasional glitches during operation

**Requested features**

- Add file deletion functionality
- Implement in-app camera scanning feature
- Add page merge and delete options
- Include file size/quality customization
- Support for more device types (iPad compatibility)


### SobrMate

[App page](https://appshunter.io/ios/app/sobrmate-days-clean-tracker/id6744226342)

This app helps you track your progress in breaking bad habits and maintaining sobriety. It offers tools to monitor clean days, journal your journey, and receive motivational support. Secure your progress with app lock and visualize your achievements with home screen widgets.

**Highlights:** Sober streak tracking, Recovery insights and charts, Customizable home screen widgets, App lock for privacy, Guided recovery journal, Daily motivational quotes, Unlimited streak tracking (Premium)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Yearly | $22.99 | per year |
| Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is PDF Viewer free?

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

### Is SobrMate free?

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

### Which has better reviews, PDF Viewer or SobrMate?

PDF Viewer is rated higher. PDF Viewer averages 4.8 out of 5 from 235 ratings, while SobrMate averages 4.4 from 18 ratings.

### Do PDF Viewer or SobrMate have ads?

Neither PDF Viewer nor SobrMate shows ads.

### Which is updated more often, PDF Viewer or SobrMate?

PDF Viewer ships an update every 3 months, and SobrMate every 10 days. Most recently, PDF Viewer was updated on September 8, 2026 and SobrMate on September 10, 2026.

---

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