# GreyStone Power vs Cobb EMC

The clearest difference is rating: Cobb EMC at 3.1 against GreyStone Power's 2.3. Cobb EMC also leads on update cadence (every 2 months vs every 6 months) and review sentiment (21% vs 12%). GreyStone Power's advantage is iOS requirement (12.0 vs 17.0). On price, ratings volume, 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.

Cobb EMC holds the better App Store score, 3.1 against 2.3. Both are backed by a comparable volume of ratings — 74 and 65 respectively. Written reviews point the same way: 12% of GreyStone Power's written reviews are positive against 21% of Cobb EMC's.

GreyStone Power ships an update every 6 months, Cobb EMC every 2 months. The most recent releases landed on October 21, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | GreyStone Power | Cobb EMC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (74 ratings)](https://appshunter.io/ios/app/greystone-power/id983961601/reviews) | **[3.1 (65 ratings)](https://appshunter.io/ios/app/cobb-emc/id1186904816/reviews)** |
| Number of ratings | **74** | 65 |
| Positive reviews | 11.8% of reviews | **20.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 174 MB | 29 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [GreyStone Power Corporation,an electric membership corporation](https://appshunter.io/developer/983961600) | [Cobb Electric Membership Corporation](https://appshunter.io/developer/1358707557) |

## 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


### Cobb EMC

[App page](https://appshunter.io/ios/app/cobb-emc/id1186904816)

Manage your electric account securely, pay bills in real-time, and monitor your energy usage with interactive tools. Stay informed about news, report outages, and access valuable discounts.

**Highlights:** Real-time bill payment, View bill history (PDF), Monitor daily energy usage, Compare bills and track usage, Report power outages, View outage information, Access local/national discounts

**In-app purchases:** none


## Frequently asked questions

### Is GreyStone Power free?

GreyStone Power is free to download, with no in-app purchases.

### Is Cobb EMC free?

Cobb EMC is free to download, with no in-app purchases.

### Which has better reviews, GreyStone Power or Cobb EMC?

Cobb EMC is rated higher. GreyStone Power averages 2.3 out of 5 from 74 ratings, while Cobb EMC averages 3.1 from 65 ratings.

### Do GreyStone Power or Cobb EMC have ads?

Neither GreyStone Power nor Cobb EMC shows ads.

### Which is updated more often, GreyStone Power or Cobb EMC?

GreyStone Power ships an update every 6 months, and Cobb EMC every 2 months. Most recently, GreyStone Power was updated on October 21, 2026 and Cobb EMC 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.*