# iCharge.SG vs Preen Display

The clearest difference is in-app purchases: iCharge.SG at none against Preen Display's 2. iCharge.SG also leads on iOS requirement (15.1 vs 17.0). Preen Display's advantage is update cadence (weekly vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Preen Display sells 2 in-app purchases, starting at $2.99 per month. iCharge.SG asks for nothing beyond the download.

iCharge.SG ships an update every 3 weeks, Preen Display weekly. Both last shipped on October 28, 2026.

## The numbers

| Metric | iCharge.SG | Preen Display |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/preen-display/id6787357107/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | — | Freemium |
| Size | 25 MB | 37 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [iWOW Technology Ltr](https://appshunter.io/developer/1789284976) | [Pink Door Multimedia LLC](https://appshunter.io/developer/6780376345) |

## What reviewers say

### iCharge.SG

[App page](https://appshunter.io/ios/app/ichargesg/id6743070284)

**In-app purchases:** none


### Preen Display

[App page](https://appshunter.io/ios/app/preen-display/id6787357107)

Transform your iPad into a glanceable display for custom widgets created with simple text commands. Control devices, view feeds, or monitor data directly from your iPhone. Offers local network privacy and optional remote access via subscription.

**Highlights:** AI-powered widget creation via text prompts, Live display on iPad, Control and view widgets on iPhone, Customizable HTML, CSS, JavaScript widgets, Local network privacy, Optional remote access subscription

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Preen Plus (Monthly) | $2.99 | per month |
| Preen Plus (Yearly) | $17.99 | per year |


## Frequently asked questions

### Is iCharge.SG free?

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

### Is Preen Display free?

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

### Do iCharge.SG or Preen Display have ads?

Neither iCharge.SG nor Preen Display shows ads.

### Which is updated more often, iCharge.SG or Preen Display?

iCharge.SG ships an update every 3 weeks, and Preen Display weekly. Most recently, iCharge.SG was updated on October 28, 2026 and Preen Display on October 28, 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.*