Comparison

PJM Now vs SPP Go

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

SPP Go

Stay informed about regional electricity grid conditions. Receive instant alerts for advisories and alerts impacting your service territory. Access additional grid condition information online.

Highlights
  • Real-time push notifications
  • Advisories and alerts
  • Service territory specific information
  • Grid condition updates
  • Access to additional online resources
Features
Read full description

Southwest Power Pool is a regional transmission organization responsible for ensuring the reliable and affordable delivery of wholesale electricity to utilities across a 17-state region in the central United States. With the SPP Go app, mobile users can receive push notifications any time SPP declares an advisory or alert signaling changing conditions on the power grid in their service territory. Additional information is available at www.SPP.org/grid-conditions.

Screenshots

PJM Now4 screens
SPP Go4 screens

Verdict

The call

The clearest difference is review sentiment: SPP Go at 100% against PJM Now's 22%. SPP Go also leads on rating (4.8 vs 3.6). PJM Now's advantage is ratings volume (26 vs 4). On price, update cadence, ads and in-app purchases 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

SPP Go holds the better App Store score, 4.8 against 3.6. That said, the two scores are not equally well evidenced: PJM Now has 26 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 22% of PJM Now's written reviews are positive against 100% of SPP Go's.

UpkeepUpdate frequency

PJM Now ships an update every 3 months, SPP Go every 5 months. Both last shipped on October 24, 2026.

Scorecard3 real differences · 7 level
PJM Now versus SPP Go: the parameters behind the verdict, then further details
ParameterPJM NowSPP Go
PriceFreeFree
Rating3.6 (26 ratings)4.8 (4 ratings) — better
Positive reviews22.2% of reviews100.0% of reviews — better
Number of ratings26 — better4
Update frequencyEvery 3 months — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better16.4
Further details — not scored
Size38 MB47 MB
Age rating4+4+
DeveloperPJM InterconnectionSouthwest Power Pool

Customer experience

PJM Now

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

SPP Go

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

PJM Now

No in-app purchases

None

SPP Go

No in-app purchases

Questions

Is PJM Now free?
PJM Now is free to download, with no in-app purchases.
Is SPP Go free?
SPP Go is free to download, with no in-app purchases.
Which has better reviews, PJM Now or SPP Go?
SPP Go is rated higher. PJM Now averages 3.6 out of 5 from 26 ratings, while SPP Go averages 4.8 from 4 ratings.
Do PJM Now or SPP Go have ads?
Neither PJM Now nor SPP Go shows ads.
Which is updated more often, PJM Now or SPP Go?
PJM Now ships an update every 3 months, and SPP Go every 5 months. Most recently, PJM Now was updated on October 24, 2026 and SPP Go on October 24, 2026.

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