# United Illuminating vs Advanced Window Systems

The clearest difference is iOS requirement: United Illuminating at 13.0 against Advanced Window Systems's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

United Illuminating ships an update every 3 weeks, Advanced Window Systems monthly. The most recent releases landed on October 24, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | United Illuminating | Advanced Window Systems |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (4.8K ratings)](https://appshunter.io/ios/app/united-illuminating/id1490254000/reviews)** | — |
| Number of ratings | **4.8K** | — |
| Positive reviews | 82.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free | — |
| Size | 60 MB | 37 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AVANGRID INC.](https://appshunter.io/developer/1452725930) | [Advanced Window Systems](https://appshunter.io/developer/1849202276) |

## What reviewers say

### United Illuminating

[App page](https://appshunter.io/ios/app/united-illuminating/id1490254000)

Manage your utility account with ease. Pay bills, report outages, and view restoration times. Access account information, enroll in eBill, AutoPay, and Budget Billing for convenient financial management.

**Highlights:** Pay bills in three clicks, Secure Touch/Face ID login, Report outages and view restoration times, Access outage maps, Enroll in eBill and AutoPay, Sign up for Budget Billing, Update account profile

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Quick and convenient payments
- 💡 Helpful features like outage alerts and account management
- 🚀 Efficient and simple navigation
- 👍 User-friendly interface

**What reviewers complain about**

- 🐛 Occasional login/payment issues
- 🐛 Inconsistent performance across devices
- 💰 Concerns about rising costs and fees
- 🔒 Security/account access problems

**Reported bugs**

- Login screen crashes or freezes
- Payment processing errors
- Inability to access account information

**Requested features**

- Add ability to schedule/manage payments
- Improve communication during service transfers
- Allow credit card payments in-app
- Provide more transparency on billing and usage


### 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 United Illuminating free?

United Illuminating 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 United Illuminating or Advanced Window Systems have ads?

Neither United Illuminating nor Advanced Window Systems shows ads.

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

United Illuminating ships an update every 3 weeks, and Advanced Window Systems monthly. Most recently, United Illuminating was updated on October 24, 2026 and Advanced Window Systems on October 3, 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.*