Comparison

GreyStone Power vs PSO Mobile App

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

Head to head
About

GreyStone Power

Manage your electricity account with ease. View bills, make payments, and track usage. Report outages and find office locations on the go.

Highlights
  • Account management
  • Bill viewing
  • Payment processing
  • Electricity usage tracking
  • Outage reporting
  • Office location finder
  • Alerts and reminders
Features
Read full description

GreyStone’s mobile app gives you fast, secure account access so you can easily manage your account details, view your bill and account balance, make payments, and view your electricity use. You can also report outages, view our office and payment locations, schedule alerts and reminders, and connect to our social media pages. Nearly everything you can do from our web portal can now be handled instantly whether you’re at home, at work, or on the go.

About

PSO Mobile App

Manage your utility account conveniently. View and pay bills, report power outages, track restoration progress, and monitor energy usage. The app offers features like paperless billing and payment alerts for a streamlined experience.

Highlights
  • Report power outages
  • Check outage status
  • View and pay bills
  • Manage multiple accounts
  • Track energy usage
  • Paperless billing enrollment
Features
Read full description

Welcome to a better way to manage your account with our customer mobile app. You can view and pay your bill, report an outage, check outage status, manage your accounts, view billing history, and more! Use the "Remember me" feature to make login a breeze. Everything is now at the touch of your fingertips. Features include: OUTAGE INFORMATION - Report a power outage - Check outage status and track restoration progress - Easy access to view outage maps in your area ACCOUNT MANAGEMENT - Choose "Remember me" to skip logging in each time you use the app* - View your real-time account balance, payment due date, and balance details - View and download your bill (PDF) - Pay immediately for free from your bank account - Make automatic or scheduled payments - Other ways to pay (credit/debit card, in-person, by phone) - Switch between multiple accounts ENERGY USAGE - Compare how your current usage compares to last month or the same time last year SETTINGS - Enroll in and manage your paperless billing - Add or delete your bank accounts - Enroll in and manage billing and outage alerts *Logging into the PSO app requires an active account that is registered online at PSOklahoma.com

Screenshots

GreyStone Power4 screens
PSO Mobile App4 screens

Verdict

The call

The clearest difference is rating: PSO Mobile App at 3.0 against GreyStone Power's 2.4. PSO Mobile App also leads on update cadence (monthly vs every 6 months). GreyStone Power's advantage is iOS requirement (12.0 vs 15.0). On price, review sentiment, ratings volume 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

PSO Mobile App holds the better App Store score, 3.0 against 2.4. Both are backed by a comparable volume of ratings — 59 and 93 respectively. Written reviews split almost evenly too, at 12% and 13% positive.

UpkeepUpdate frequency

GreyStone Power ships an update every 6 months, PSO Mobile App monthly. The most recent releases landed on September 18, 2026 and September 17, 2026 respectively.

Scorecard3 real differences · 7 level
GreyStone Power versus PSO Mobile App: the parameters behind the verdict, then further details
ParameterGreyStone PowerPSO Mobile App
PriceFreeFree
Rating2.4 (59 ratings)3.0 (93 ratings) — better
Positive reviews11.8% of reviews12.5% of reviews — better
Number of ratings5993 — better
Update frequencyEvery 6 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size174 MB35 MB
Age rating4+4+
DeveloperGreyStone Power Corporation,an electric membership corporationAmerican Electric Power

Customer experience

GreyStone Power

All ratings59 ratings
Positive32.2%
Neutral3.4%
Negative64.4%
Written reviews34 reviews
Positive11.8%
Neutral2.9%
Negative85.3%

PSO Mobile App

All ratings93 ratings
Positive45.2%
Neutral7.5%
Negative47.3%
Written reviews32 reviews
Positive12.5%
Neutral3.1%
Negative84.4%

In-app purchases

None

GreyStone Power

No in-app purchases

None

PSO Mobile App

No in-app purchases

Questions

Is GreyStone Power free?
GreyStone Power is free to download, with no in-app purchases.
Is PSO Mobile App free?
PSO Mobile App is free to download, with no in-app purchases.
Which has better reviews, GreyStone Power or PSO Mobile App?
PSO Mobile App is rated higher. GreyStone Power averages 2.4 out of 5 from 59 ratings, while PSO Mobile App averages 3.0 from 93 ratings.
Do GreyStone Power or PSO Mobile App have ads?
Neither GreyStone Power nor PSO Mobile App shows ads.
Which is updated more often, GreyStone Power or PSO Mobile App?
GreyStone Power ships an update every 6 months, and PSO Mobile App monthly. Most recently, GreyStone Power was updated on September 18, 2026 and PSO Mobile App on September 17, 2026.

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