# VSD Viewer for Visio Drawings vs Knowify

The clearest difference is price: Knowify at Free against VSD Viewer for Visio Drawings's $9.99. Knowify also leads on update cadence (every 9 days vs every 2 months). VSD Viewer for Visio Drawings's advantage is rating (3.3 vs 2.5) and review sentiment (53% vs 14%). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Knowify is free to download; VSD Viewer for Visio Drawings costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

VSD Viewer for Visio Drawings holds the better App Store score, 3.3 against 2.5. Both are backed by a comparable volume of ratings — 11 and 19 respectively. Written reviews point the same way: 53% of VSD Viewer for Visio Drawings's written reviews are positive against 14% of Knowify's.

VSD Viewer for Visio Drawings ships an update every 2 months, Knowify every 9 days. Both last shipped on November 6, 2026.

## The numbers

| Metric | VSD Viewer for Visio Drawings | Knowify |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[3.3 (11 ratings)](https://appshunter.io/ios/app/vsd-viewer-for-visio-drawings/id538386564/reviews)** | [2.5 (19 ratings)](https://appshunter.io/ios/app/knowify/id943052454/reviews) |
| Number of ratings | 11 | **19** |
| Positive reviews | **53.1% of reviews** | 14.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | Paid | **Free** |
| Best chart rank | **#25** | — |
| Size | 82 MB | 285 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nektony LLC](https://appshunter.io/developer/1439408517) | [Knowify](https://appshunter.io/developer/943052453) |

## What reviewers say

### VSD Viewer for Visio Drawings

[App page](https://appshunter.io/ios/app/vsd-viewer-for-visio-drawings/id538386564)

**Currently charting:** #25 Top Paid · Business (US App Store)

View, interact with, and share Microsoft Visio drawings on your mobile device. Supports various Visio file formats and offers advanced features like layer visibility and shape data preview. Convert drawings to PDF for easy distribution.

**Highlights:** View VSD, VDX, VSDX files, Layer visibility control, Shape Data preview, Convert to PDF, Built-in file manager, Cloud storage integration, Print drawings

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

**In-app purchases:** none


### Knowify

[App page](https://appshunter.io/ios/app/knowify/id943052454)

This app streamlines field operations for contractors by offering simple time tracking, purchasing, and work order management. It facilitates photo sharing and real-time synchronization with the main platform. Designed to automate essential field tasks for businesses.

**Highlights:** Time clocking, Field purchasing, Reimbursement tools, Work orders, Photo sharing, Real-time sync

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

**In-app purchases:** none


## Frequently asked questions

### Is VSD Viewer for Visio Drawings free?

VSD Viewer for Visio Drawings costs $9.99, with no in-app purchases.

### Is Knowify free?

Knowify is free to download, with no in-app purchases.

### Which has better reviews, VSD Viewer for Visio Drawings or Knowify?

VSD Viewer for Visio Drawings is rated higher. VSD Viewer for Visio Drawings averages 3.3 out of 5 from 11 ratings, while Knowify averages 2.5 from 19 ratings.

### Do VSD Viewer for Visio Drawings or Knowify have ads?

Neither VSD Viewer for Visio Drawings nor Knowify shows ads.

### Which is updated more often, VSD Viewer for Visio Drawings or Knowify?

VSD Viewer for Visio Drawings ships an update every 2 months, and Knowify every 9 days. Most recently, VSD Viewer for Visio Drawings was updated on November 6, 2026 and Knowify on November 6, 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.*