# ViewSonic Projector vs 渴信

The clearest difference is update cadence: ViewSonic Projector at every 3 months against 渴信's every 7 months. 渴信's advantage is iOS requirement (10.2 vs 12.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ViewSonic Projector ships an update every 3 months, 渴信 every 7 months. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | ViewSonic Projector | 渴信 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.4 (14 ratings)](https://appshunter.io/ios/app/viewsonic-projector/id964378113/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 7 months |
| Monetization | Free | — |
| Size | 22 MB | 149 MB |
| Requires iOS | 12.0 | **10.2** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [ViewSonic_International](https://appshunter.io/developer/871648106) | [JSW PACIFIC CORPORATION](https://appshunter.io/developer/999731327) |

## What reviewers say

### ViewSonic Projector

[App page](https://appshunter.io/ios/app/viewsonic-projector/id964378113)

This app provides comprehensive knowledge for selecting and installing projectors. It offers practical guidance for various settings, helping users determine optimal placement based on room dimensions and desired screen size. Interactive simulations allow for real-time adjustments.

**Highlights:** Projector selection guidance, Installation know-how, Placement distance calculation, Screen size and aspect ratio input, Interactive distance adjustment, Simulation scenarios

**In-app purchases:** none


### 渴信

[App page](https://appshunter.io/ios/app/id1480505414)

**In-app purchases:** none


## Frequently asked questions

### Is ViewSonic Projector free?

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

### Is 渴信 free?

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

### Do ViewSonic Projector or 渴信 have ads?

Neither ViewSonic Projector nor 渴信 shows ads.

### Which is updated more often, ViewSonic Projector or 渴信?

ViewSonic Projector ships an update every 3 months, and 渴信 every 7 months. Most recently, ViewSonic Projector was updated on October 24, 2026 and 渴信 on October 8, 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.*