# coolean vs LinkViewer

The clearest difference is in-app purchases: coolean at none against LinkViewer's 2. coolean also leads on ads (none vs shown) and iOS requirement (13.0 vs 26.0). LinkViewer's advantage is update cadence (every 3 weeks vs every 8 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. coolean asks for nothing beyond the download.

coolean ships an update every 8 months, LinkViewer every 3 weeks. The most recent releases landed on September 25, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | coolean | LinkViewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/coolean/id1511928490/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 183 MB | 25 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [MYUNG SUNG INC](https://appshunter.io/developer/1511928489) | [JeongYun Lee](https://appshunter.io/developer/1850426276) |

## What reviewers say

### coolean

[App page](https://appshunter.io/ios/app/coolean/id1511928490)

Control and manage your home appliances remotely using your smartphone. Schedule operations, activate multiple devices with a single tap, and group devices for simultaneous control.

**Highlights:** Remote ON/OFF control, Appliance timer settings, One-click action presets, Group activation of devices, Smartphone management

**Features:** macOS Compatibility

**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 coolean free?

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

### Is LinkViewer free?

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

### Do coolean or LinkViewer have ads?

LinkViewer shows ads; coolean does not.

### Which is updated more often, coolean or LinkViewer?

coolean ships an update every 8 months, and LinkViewer every 3 weeks. Most recently, coolean was updated on September 25, 2026 and LinkViewer on September 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.*