# Doc Reader I vs SLX Firmware Update

The clearest difference is price: SLX Firmware Update at Free against Doc Reader I's $2.99. SLX Firmware Update also leads on rating (3.4 vs 1.0) and review sentiment (33% vs 7%). On update cadence, ads, in-app purchases and device support there is nothing between them.

SLX Firmware Update is free to download; Doc Reader I costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SLX Firmware Update holds the better App Store score, 3.4 against 1.0. That said, the two scores are not equally well evidenced: SLX Firmware Update has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 7% of Doc Reader I's written reviews are positive against 33% of SLX Firmware Update's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 14, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Doc Reader I | SLX Firmware Update |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/doc-reader-i/id408149544/reviews) | **[3.4 (7 ratings)](https://appshunter.io/ios/app/slx-firmware-update/id1632224628/reviews)** |
| Number of ratings | 1 | **7** |
| Positive reviews | 7.4% of reviews | **33.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Paid | **Free** |
| Size | 3 MB | 22 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [UMateY](https://appshunter.io/developer/327433577) | [Swing Logic Ventures LLC](https://appshunter.io/developer/1632224630) |

## What reviewers say

### Doc Reader I

[App page](https://appshunter.io/ios/app/doc-reader-i/id408149544)

This app allows you to manage and read various document types directly on your iPhone, iPad, or iPod Touch. It supports downloading files from email and the web, editing, and emailing them as attachments. You can also print documents and transfer files to your desktop via iTunes.

**Highlights:** Download files from email and web, Read PDF, Word, Excel, PowerPoint, iWork, Open Office, RTF, HTML, TXT, and image files, Delete and email files, Print documents, Transfer files via iTunes

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

**In-app purchases:** none


### SLX Firmware Update

[App page](https://appshunter.io/ios/app/slx-firmware-update/id1632224628)

This application simplifies firmware updates for Swing Logic Ventures SLX Brand products. It offers an intuitive interface to check for and install the latest firmware, view update history, and manage device functions. Compatible with various SLX devices, it ensures your equipment stays up-to-date.

**Highlights:** Intuitive user interface, Check and install latest firmware, View firmware update history, Connects via BLE, Device test functions, Turn device off into deep sleep mode

**In-app purchases:** none


## Frequently asked questions

### Is Doc Reader I free?

Doc Reader I costs $2.99, with no in-app purchases.

### Is SLX Firmware Update free?

SLX Firmware Update is free to download, with no in-app purchases.

### Which has better reviews, Doc Reader I or SLX Firmware Update?

SLX Firmware Update is rated higher. Doc Reader I averages 1.0 out of 5 from 1 ratings, while SLX Firmware Update averages 3.4 from 7 ratings.

### Do Doc Reader I or SLX Firmware Update have ads?

Neither Doc Reader I nor SLX Firmware Update shows ads.

### Which is updated more often, Doc Reader I or SLX Firmware Update?

Doc Reader I ships an update every 2 months, and SLX Firmware Update every 2 months. Most recently, Doc Reader I was updated on October 14, 2026 and SLX Firmware Update on October 10, 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.*