# PJM Now vs Mercuria MAP

The clearest difference is rating: Mercuria MAP at 5.0 against PJM Now's 3.6. Mercuria MAP also leads on update cadence (fortnightly vs every 3 months). PJM Now's advantage is ratings volume (26 vs 1) and iOS requirement (15.1 vs 17.0). 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.

Mercuria MAP holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: PJM Now has 26 ratings behind it against 1, so its average is the more settled of the two.

PJM Now ships an update every 3 months, Mercuria MAP fortnightly. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | PJM Now | Mercuria MAP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (26 ratings)](https://appshunter.io/ios/app/pjm-now/id1180491584/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mercuria-map-c/id6448470874/reviews)** |
| Number of ratings | **26** | 1 |
| Positive reviews | 22.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 38 MB | 231 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [PJM Interconnection](https://appshunter.io/developer/1180491583) | [Mercuria Energy America LLC](https://appshunter.io/developer/1683213408) |

## What reviewers say

### PJM Now

[App page](https://appshunter.io/ios/app/pjm-now/id1180491584)

Monitor electricity usage, grid status, and wholesale power prices in real-time for the PJM Interconnection region. Get alerts for price changes and grid conditions, and view power flow and fuel mix.

**Highlights:** Real-time electricity use tracking, Wholesale power price monitoring, Interactive map of prices by location, PJM grid condition alerts, Power flow visualization, Current fuel mix display

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

**In-app purchases:** none


### Mercuria MAP

[App page](https://appshunter.io/ios/app/mercuria-map-c/id6448470874)

Access real-time and day-ahead electricity prices for major North American power market hubs. View data in tables, charts, and maps, customize your view, and receive notifications for price changes. This app helps users make informed trading decisions and monitor market trends.

**Highlights:** Real-time and day-ahead power prices, Data visualization (tables, charts, map), Price comparison across regions, Customizable preferences and filters, Favorite hub saving, Price change notifications, Data export and sharing

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PJM Now free?

PJM Now is free to download, with no in-app purchases.

### Is Mercuria MAP free?

Mercuria MAP is free to download, with no in-app purchases.

### Which has better reviews, PJM Now or Mercuria MAP?

Mercuria MAP is rated higher. PJM Now averages 3.6 out of 5 from 26 ratings, while Mercuria MAP averages 5.0 from 1 ratings.

### Do PJM Now or Mercuria MAP have ads?

Neither PJM Now nor Mercuria MAP shows ads.

### Which is updated more often, PJM Now or Mercuria MAP?

PJM Now ships an update every 3 months, and Mercuria MAP fortnightly. Most recently, PJM Now was updated on November 6, 2026 and Mercuria MAP on November 3, 2026.

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