# GreyStone Power vs PSO Mobile App

The clearest difference is rating: PSO Mobile App at 2.9 against GreyStone Power's 2.3. 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.

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

PSO Mobile App holds the better App Store score, 2.9 against 2.3. Both are backed by a comparable volume of ratings — 74 and 102 respectively. Written reviews split almost evenly too, at 12% and 12% positive.

GreyStone Power ships an update every 6 months, PSO Mobile App monthly. The most recent releases landed on October 21, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | GreyStone Power | PSO Mobile App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (74 ratings)](https://appshunter.io/ios/app/greystone-power/id983961601/reviews) | **[2.9 (102 ratings)](https://appshunter.io/ios/app/pso-mobile-app/id1272274800/reviews)** |
| Number of ratings | 74 | **102** |
| Positive reviews | 11.8% of reviews | **12.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Monthly** |
| Monetization | Free | Free |
| Size | 174 MB | 37 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GreyStone Power Corporation,an electric membership corporation](https://appshunter.io/developer/983961600) | [American Electric Power](https://appshunter.io/developer/655650238) |

## What reviewers say

### GreyStone Power

[App page](https://appshunter.io/ios/app/greystone-power/id983961601)

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:** macOS Compatibility

**In-app purchases:** none


### PSO Mobile App

[App page](https://appshunter.io/ios/app/pso-mobile-app/id1272274800)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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 2.3 out of 5 from 74 ratings, while PSO Mobile App averages 2.9 from 102 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 October 21, 2026 and PSO Mobile App on October 29, 2026.

---

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