PJM Now vs SPP Go
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
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.
- Real-time push notifications
- Advisories and alerts
- Service territory specific information
- Grid condition updates
- Access to additional online resources
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
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.
PJM Now ships an update every 3 months, SPP Go every 5 months. Both last shipped on October 24, 2026.
| Parameter | PJM Now | SPP Go |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (26 ratings) | 4.8 (4 ratings) — better |
| Positive reviews | 22.2% of reviews | 100.0% of reviews — better |
| Number of ratings | 26 — better | 4 |
| Update frequency | Every 3 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 38 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | PJM Interconnection | Southwest Power Pool |
Customer experience
PJM Now
SPP Go
In-app purchases
PJM Now
No in-app purchases
SPP Go
No in-app purchases






