Comparison

Green Mtn vs Discount Power

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Green Mtn

Manage your green energy account, track usage, and discover daily tips for a sustainable lifestyle. Available exclusively for Texas customers, this app helps you monitor your environmental impact and access account services.

Highlights
  • Pay bills and view payment history
  • Manage account services (AutoPay, Average Billing)
  • Track electricity usage and costs
  • Access plan details and customer rights
  • Get green living tips
  • Monitor personal carbon emission impact
  • Link electric vehicle for greater impact
Features
Read full description

Available to Texas customers only. Stay connected to your green lifestyle where you are with the Green Mountain Energy App. With daily green living tips and a host of tools to manage your impact, we make it effortless to live cleaner and greener everyday. * Pay your bill, check your balance, and review billing and payment history. * Manage account services like AutoPay, Average Billing, and Tree Free billing. * Transfer your electricity service to a new address. * Access important plan details like your Electricity Facts Label, Terms of Service and your Rights as a Customer. * Track your usage with interactive, customizable graphs that show trends, projected electricity costs and weather impacts in your area. * Get green add-ons like Green Mountain Driver and support sustainability projects through Green Mountain Energy Sun Club. * Earn badges for helping the planet by greening up your life. * See the differences you’re making by tracking your personal impact for preventing carbon emissions. The longer you stay on your plan, the bigger your impact gets. * Link your electric vehicle to make an even bigger impact.

About

Discount Power

Manage your electricity account with ease. Access billing, payment history, and usage data. Set up AutoPay, Average Billing, and Paperless Billing. View plan details and compare usage trends.

Highlights
  • Account management
  • Billing and payment history
  • Usage data visualization
  • AutoPay setup
  • Plan details viewing
  • Paperless billing
Features
Read full description

Available for Texas Customers only. The Discount Power app lets you manage your account straight from your phone. Which means you’ll have access to self-service, support and usage data anytime, anywhere. Key features and benefits: • Access billing features that let you pay your bill, check your balance and review billing and payment history. • Manage account services like AutoPay, Average Billing and Paperless Billing. • View plan details and important documents to shop for a new plan. • Interact with bar graphs and heat maps to compare usage information when it comes to trends, costs and weather impact.

Screenshots

Green Mtn4 screens
Discount Power4 screens

Verdict

The call

The clearest difference is update cadence: Green Mtn at monthly against Discount Power's every 3 months. Green Mtn also leads on ratings volume (4.7K vs 860). On price, rating, review sentiment and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Green Mtn against 4.9 for Discount Power. That said, the two scores are not equally well evidenced: Green Mtn has 4.7K ratings behind it against 860, so its average is the more settled of the two. Written reviews are what separate them: 47% of Green Mtn's written reviews are positive against 46% of Discount Power's.

UpkeepUpdate frequency

Green Mtn ships an update monthly, Discount Power every 3 months. Both last shipped on November 3, 2026.

Scorecard2 real differences · 8 level
Green Mtn versus Discount Power: the parameters behind the verdict, then further details
ParameterGreen MtnDiscount Power
PriceFreeFree
Rating4.9 (4.7K ratings) — better4.9 (860 ratings)
Positive reviews47.1% of reviews — better45.8% of reviews
Number of ratings4.7K — better860
Update frequencyMonthly — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhoneiPhone
Requires iOS16.616.6
Further details — not scored
Size91 MB60 MB
Age rating4+4+
DeveloperGreen Mountain EnergyUS RETAILERS LLC

Customer experience

Green Mtn

All ratings4,657 ratings
Positive98.5%
Neutral0.6%
Negative0.8%
Written reviews70 reviews
Positive47.1%
Neutral14.3%
Negative38.6%

Discount Power

All ratings844 ratings
Positive97.7%
Neutral0.2%
Negative2.0%
Written reviews24 reviews
Positive45.8%
Neutral4.2%
Negative50.0%

User reviews

Green Mtn

From 4.7K App Store ratings

What we love

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

Room to improve

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

Discount Power

From 860 App Store ratings

What we love

  • 👍 User-friendly app
  • 🚀 Informative and interactive
  • 💳 Flexible payment options
  • 🔒 Reliable service

Room to improve

  • 🐛 Login and account issues
  • 🔍 Lack of usage history
  • 💰 Higher rates than competitors
  • 📱 UI/UX design problems

Bugs and requests

Green Mtn

Reported bugs

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

Requested features

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

Discount Power

Reported bugs

3 issues
  • App not working correctly after iOS updates
  • Payment methods not functioning properly
  • Inconsistent app performance

Requested features

3 requests
  • Improve login and account management
  • Display current active account first
  • Enhance usage history and analytics

In-app purchases

None

Green Mtn

No in-app purchases

None

Discount Power

No in-app purchases

Questions

Is Green Mtn free?
Green Mtn is free to download, with no in-app purchases.
Is Discount Power free?
Discount Power is free to download, with no in-app purchases.
Which has better reviews, Green Mtn or Discount Power?
Green Mtn is rated higher. Green Mtn averages 4.9 out of 5 from 4.7K ratings, while Discount Power averages 4.9 from 860 ratings.
Do Green Mtn or Discount Power have ads?
Neither Green Mtn nor Discount Power shows ads.
Which is updated more often, Green Mtn or Discount Power?
Green Mtn ships an update monthly, and Discount Power every 3 months. Most recently, Green Mtn was updated on November 3, 2026 and Discount Power on November 3, 2026.

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