# Refer vs Advanced Window Systems

The clearest difference is update cadence: Refer at weekly against Advanced Window Systems's every 3 weeks. Advanced Window Systems's advantage is iOS requirement (13.0 vs 15.0). 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.

Refer ships an update weekly, Advanced Window Systems every 3 weeks. The most recent releases landed on September 17, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Refer | Advanced Window Systems |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (41 ratings)](https://appshunter.io/ios/app/refer-pro/id6448853265/reviews)** | — |
| Number of ratings | **41** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free | — |
| Size | 228 MB | 38 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GetTheReferral.com, Inc.](https://appshunter.io/developer/920200891) | [Advanced Window Systems](https://appshunter.io/developer/1849202276) |

## What reviewers say

### Refer

[App page](https://appshunter.io/ios/app/refer-pro/id6448853265)

This application allows users to communicate directly with the service provider after registration. Receive updates and send feedback to enhance your purchasing experience. Users can also leave reviews for purchased products.

**Highlights:** User registration, Direct communication, Push notifications, In-app messaging, Product reviews, Purchase feedback

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

**In-app purchases:** none


### Advanced Window Systems

[App page](https://appshunter.io/ios/app/advanced-window-systems/id6754609796)

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

**In-app purchases:** none


## Frequently asked questions

### Is Refer free?

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

### Is Advanced Window Systems free?

Advanced Window Systems is free to download, with no in-app purchases.

### Do Refer or Advanced Window Systems have ads?

Neither Refer nor Advanced Window Systems shows ads.

### Which is updated more often, Refer or Advanced Window Systems?

Refer ships an update weekly, and Advanced Window Systems every 3 weeks. Most recently, Refer was updated on September 17, 2026 and Advanced Window Systems on September 15, 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.*