Comparison

PJM Now vs Mercuria MAP

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

Head to head
About

PJM Now

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
Read full description

Track electricity use, power grid conditions and wholesale power prices in real time throughout the region PJM Interconnection serves with the simple and easy-to-use PJM Now app. • See wholesale power prices and trends broken down by location on an interactive map • Receive alerts when wholesale power prices in your area reach the level of your choosing • Receive alerts about PJM grid conditions for your chosen area • Track real-time electricity use and compare it to the day’s forecasted use • See how power flows in and out of the region PJM serves • See the current fuel mix PJM Interconnection, founded in 1927, ensures the reliability of the high-voltage electric power system serving 65 million people in all or parts of Delaware, Illinois, Indiana, Kentucky, Maryland, Michigan, New Jersey, North Carolina, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia and the District of Columbia. PJM coordinates and directs the operation of the region’s transmission grid, which includes over 84,042 miles of transmission lines; administers a competitive wholesale electricity market; and plans regional transmission expansion improvements to maintain grid reliability and relieve congestion. Visit PJM at www.pjm.com.

About

Mercuria MAP

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
Read full description

Map-C - for Power Market Hub Prices Stay ahead of the curve with real-time and day-ahead prices for major power market hubs in the United States and Canada. Map-C, by Mercuria, is the ultimate app for anyone interested in the electricity market. Whether you are a trader, an analyst, a researcher, or someone working in the power industry, this app will give you access to the latest and most reliable data on Day-Ahead and Real-Time prices for major power market hubs in North America. With Map-C, you can: • View prices for CAISO, ERCOT, MISO, NEISO, NYISO, PJM, and SPP in tables, charts, and on a map. • Compare prices across different regions and time frames. • Customize your preferences and filters to see only the data you need. • Save your favorite hubs for quick reference. • Get notified of price changes and market events. • Export and share data with others. Map-C is easy to use, fast, and secure. It updates automatically with the latest information from official sources. It also works offline, so you can access your data anytime, anywhere. Key benefits: • Stay ahead of the curve with real-time and day-ahead prices • Make informed trading decisions • Identify trends in the power market • Easily monitor all power hubs or just your favorites Harness the power of real-time data with MAP-C! Supply and demand section, FuelMix, Load, and NetLoad. Make informed energy decisions with predictive analytics. Elevate your sustainability goals while optimizing costs. Don’t miss this opportunity to get the most comprehensive and convenient app for power market prices. Download Map-C today to get started!

Screenshots

PJM Now4 screens
Mercuria MAP4 screens

Verdict

The call

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.

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

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
PJM Now versus Mercuria MAP: the parameters behind the verdict, then further details
ParameterPJM NowMercuria MAP
PriceFreeFree
Rating3.6 (26 ratings)5.0 (1 ratings) — better
Positive reviews22.2% of reviews—
Number of ratings26 — better1
Update frequencyEvery 3 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS15.1 — better17.0
Further details — not scored
Size38 MB231 MB
Age rating4+4+
DeveloperPJM InterconnectionMercuria Energy America LLC

Customer experience

PJM Now

All ratings26 ratings
Positive65.4%
Neutral0.0%
Negative34.6%
Written reviews9 reviews
Positive22.2%
Neutral0.0%
Negative77.8%

Mercuria MAP

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

PJM Now

No in-app purchases

None

Mercuria MAP

No in-app purchases

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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