# 씽크에어 PRO vs LinkViewer

The clearest difference is in-app purchases: 씽크에어 PRO at none against LinkViewer's 2. 씽크에어 PRO also leads on ads (none vs shown) and iOS requirement (10.0 vs 26.0). LinkViewer's advantage is update cadence (every 3 weeks vs every 3 months). On price and device support there is nothing between them.

Both are free to download. LinkViewer sells 2 in-app purchases, starting at $0.99 per month. 씽크에어 PRO asks for nothing beyond the download.

씽크에어 PRO ships an update every 3 months, LinkViewer every 3 weeks. The most recent releases landed on October 7, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 씽크에어 PRO | LinkViewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pro/id1603418097/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 170 MB | 25 MB |
| Requires iOS | **10.0** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Waycos](https://appshunter.io/developer/959458969) | [JeongYun Lee](https://appshunter.io/developer/1850426276) |

## What reviewers say

### 씽크에어 PRO

[App page](https://appshunter.io/ios/app/pro/id1603418097)

This app offers advanced control for a robot vacuum cleaner, allowing users to monitor cleaning in real-time, set custom cleaning zones, and schedule routines. It supports multi-floor cleaning and adjustable suction and water spray levels for an optimized experience.

**Highlights:** Real-time cleaning status, Multi-floor cleaning support, Customizable cleaning zones, Scheduled cleaning routines, Adjustable suction and water spray, Multi-user and device sharing

**In-app purchases:** none


### LinkViewer

[App page](https://appshunter.io/ios/app/linkviewer-text-and-pdf-reader/id6760254716)

**Features:** Family Sharing, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LinkViewer Pro Monthly | $0.99 | per month |
| LinkViewer Pro Yearly | $8.99 | per year |


## Frequently asked questions

### Is 씽크에어 PRO free?

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

### Is LinkViewer free?

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

### Do 씽크에어 PRO or LinkViewer have ads?

LinkViewer shows ads; 씽크에어 PRO does not.

### Which is updated more often, 씽크에어 PRO or LinkViewer?

씽크에어 PRO ships an update every 3 months, and LinkViewer every 3 weeks. Most recently, 씽크에어 PRO was updated on October 7, 2026 and LinkViewer 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.*