# Green Mtn vs Monster Pay

The clearest difference is rating: Green Mtn at 4.9 against Monster Pay's 1.7. Green Mtn also leads on update cadence (monthly vs every 16 months) and review sentiment (47% vs 20%). Monster Pay's advantage is iOS requirement (10.0 vs 16.6). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Green Mtn holds the better App Store score, 4.9 against 1.7. That said, the two scores are not equally well evidenced: Green Mtn has 4.7K ratings behind it against 29, so its average is the more settled of the two. Written reviews point the same way: 47% of Green Mtn's written reviews are positive against 20% of Monster Pay's.

Green Mtn ships an update monthly, Monster Pay every 16 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Green Mtn | Monster Pay |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (4.7K ratings)](https://appshunter.io/ios/app/green-mtn/id1464698584/reviews)** | [1.7 (29 ratings)](https://appshunter.io/ios/app/monster-pay/id1577137064/reviews) |
| Number of ratings | **4.7K** | 29 |
| Positive reviews | **47.1% of reviews** | 20.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 16 months |
| Monetization | Free | Free |
| Size | 95 MB | 45 MB |
| Requires iOS | 16.6 | **10.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Green Mountain Energy](https://appshunter.io/developer/1464698583) | [KioSoft Technologies LLC](https://appshunter.io/developer/1254243314) |

## What reviewers say

### Green Mtn

[App page](https://appshunter.io/ios/app/green-mtn/id1464698584)

Manage your electricity account and track your environmental impact. Get daily green living tips, monitor usage, and earn rewards for sustainable actions. Available for Texas customers.

**Highlights:** Pay bills and view payment history, Manage account services (AutoPay, Average Billing), Transfer electricity service, Access plan details and customer rights, Track electricity usage with interactive graphs, Earn badges for environmental impact, Link electric vehicle for greater impact

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

**In-app purchases:** none

**What reviewers like**

- 👍 Good service provider
- 💰 Affordable rates
- 🌳 Eco-friendly energy
- 🤝 Excellent customer service

**What reviewers complain about**

- 🐛 Login issues
- 🐛 App crashes/freezes
- 🔒 Security concerns
- 🔍 Lack of features/functionality

**Reported bugs**

- Unable to log in
- App crashes on launch
- Payment methods not saving
- Incorrect account information displayed

**Requested features**

- Add Apple Pay support
- Improve app stability and performance
- Provide more detailed usage and billing information
- Enhance user interface and navigation


### Monster Pay

[App page](https://appshunter.io/ios/app/monster-pay/id1577137064)

Manage your laundry with this mobile payment solution. Purchase credits directly within the app to operate washing machines and dryers. View transaction history and machine availability in participating locations.

**Highlights:** In-app credit purchase, QR code machine scanning, View account balance, Transaction history, Machine availability view, Laundry cycle completion alerts

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

**In-app purchases:** none


## Frequently asked questions

### Is Green Mtn free?

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

### Is Monster Pay free?

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

### Which has better reviews, Green Mtn or Monster Pay?

Green Mtn is rated higher. Green Mtn averages 4.9 out of 5 from 4.7K ratings, while Monster Pay averages 1.7 from 29 ratings.

### Do Green Mtn or Monster Pay have ads?

Neither Green Mtn nor Monster Pay shows ads.

### Which is updated more often, Green Mtn or Monster Pay?

Green Mtn ships an update monthly, and Monster Pay every 16 months. Most recently, Green Mtn was updated on October 29, 2026 and Monster Pay on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*