# ProjLink vs HY300 4K Smart Projector Guide

The clearest difference is ads: ProjLink at none against HY300 4K Smart Projector Guide's shown. On price, update cadence, 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.

ProjLink ships an update every 2 months, HY300 4K Smart Projector Guide every 6 weeks. The most recent releases landed on October 4, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ProjLink | HY300 4K Smart Projector Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.3 (3 ratings)](https://appshunter.io/ios/app/hy300-4k-smart-projector-guide/id6780073766/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | — | Ad-supported |
| Size | 26 MB | 7 MB |
| Requires iOS | 16.6 | 16.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | +4 |
| Developer | [CORETRONIC CORPORATION](https://appshunter.io/developer/889870720) | [Cristian Andrei Romascu Radu](https://appshunter.io/developer/1029035234) |

## What reviewers say

### ProjLink

[App page](https://appshunter.io/ios/app/projlink/id6748052198)

**Features:** macOS Compatibility

**In-app purchases:** none


### HY300 4K Smart Projector Guide

[App page](https://appshunter.io/ios/app/hy300-4k-smart-projector-guide/id6780073766)

This guide provides step-by-step instructions for setting up and troubleshooting your HY300 4K Smart Projector. It helps with initial setup, WiFi connection, screen mirroring, image adjustments, and resolving common issues like no signal or audio problems.

**Highlights:** Step-by-step setup instructions, WiFi and Bluetooth connection help, Screen mirroring guidance, Image focus and keystone correction, Troubleshooting for common issues, Factory reset procedures

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

**In-app purchases:** none


## Frequently asked questions

### Is ProjLink free?

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

### Is HY300 4K Smart Projector Guide free?

HY300 4K Smart Projector Guide is free to download, with no in-app purchases.

### Do ProjLink or HY300 4K Smart Projector Guide have ads?

HY300 4K Smart Projector Guide shows ads; ProjLink does not.

### Which is updated more often, ProjLink or HY300 4K Smart Projector Guide?

ProjLink ships an update every 2 months, and HY300 4K Smart Projector Guide every 6 weeks. Most recently, ProjLink was updated on October 4, 2026 and HY300 4K Smart Projector Guide on October 24, 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.*