Comparison

Stem PowerTrack vs Unity by Power Factors

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

Head to head
About

Stem PowerTrack

Monitor and analyze solar PV projects and energy systems remotely. Site owners can view data and forecasts, while technicians can diagnose and fix issues on-site using their mobile devices.

Highlights
  • Site overview with easy-to-read data
  • In-depth site data analysis via charts
  • Current weather and forecast for sites
  • Detailed hardware technical information
  • Fast hardware alerts and error detection
Features
Read full description

Newly redesigned and relaunched: PowerTrack is back with a fully updated experience for site owners and field technicians. PowerTrack by Stem puts your solar, storage, and hybrid site data in your pocket. Whether you're a site owner tracking performance or a technician monitoring assets in the field, PowerTrack gives you real-time visibility and control from your phone. Features Site Overview: See the key metrics that matter at a glance Charts & Historical Data: Analyze trends and review performance over time Weather: View current conditions and forecasts for your site Hardware Monitoring: Check device configurations and live incoming data Active Alerts: Stay on top of hardware alerts before they become problems Formerly the AlsoEnergy app. AlsoEnergy is now Stem, and this is the same app you know, enhanced, and under the PowerTrack name. About Stem: Stem is a leading global provider of AI-driven clean energy software and services, helping customers optimize solar, hybrid, and energy storage assets. Learn more: www.stem.com Privacy Notice: https://www.stem.com/privacy-notice/

About

Unity by Power Factors

Monitor and manage renewable energy assets like solar, wind, and BESS portfolios from your mobile device. Quickly assess fleet health, triage events, and receive AI-generated site summaries for efficient performance management.

Highlights
  • Fleet health overview
  • Drill down to site and device
  • Event triage by energy loss
  • AI-generated site summaries
  • Weather and operational data comparison
  • Secure SSO login
Read full description

Unity brings renewable energy asset performance management to your phone - monitor solar, wind, and BESS portfolios from the field, between meetings, or on the road. Built for operators, asset managers, and performance engineers who already use Unity APM on the desktop, the mobile app surfaces the data you need to answer "is anything wrong right now?" in seconds. WHAT YOU CAN DO - Check fleet health at a glance — performance ratio, availability, and total energy across your entire portfolio, with the same values you see on desktop - Drill from fleet to site to device in three taps, with asset-class-aware views for wind, solar, BESS, and hybrid - Triage events by energy loss and lost revenue — sourced directly from Unity APM's event loss accounting engine - Get instant AI-generated site summaries from Unity REMI (Renewable Energy Management Intelligence), the AI assistant — plain-language briefings that highlight what changed and what deserves attention - Compare weather and solar irradiance alongside operational data, so you can tell a real fault from a cloudy afternoon SECURE BY DESIGN - SSO with your existing Unity credentials WHO IT'S FOR Unity Mobile requires a Unity APM account. If your organization does not yet use Unity APM, contact Power Factors or your account team. ABOUT POWER FACTORS Power Factors delivers renewable energy asset management software for global portfolios. Its Unity platform unifies SCADA, EMS, APM, O&M, and commercial asset management in a single suite — giving operators one system from monitoring and controls through technical and financial performance. Learn more at http://powerfactors.com

Screenshots

Stem PowerTrack4 screens
Unity by Power Factors4 screens

Verdict

The call

The clearest difference is rating: Unity by Power Factors at 5.0 against Stem PowerTrack's 3.1. Unity by Power Factors also leads on update cadence (every 3 weeks vs every 3 months). Stem PowerTrack's advantage is ratings volume (42 vs 1) and device support (3 vs 1). 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

Unity by Power Factors holds the better App Store score, 5.0 against 3.1. That said, the two scores are not equally well evidenced: Stem PowerTrack has 42 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Stem PowerTrack ships an update every 3 months, Unity by Power Factors every 3 weeks. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 5 level
Stem PowerTrack versus Unity by Power Factors: the parameters behind the verdict, then further details
ParameterStem PowerTrackUnity by Power Factors
PriceFreeFree
Rating3.1 (42 ratings)5.0 (1 ratings) — better
Positive reviews20.0% of reviews—
Number of ratings42 — better1
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS14.0 — better16.0
Further details — not scored
Size6 MB118 MB
Age rating4+4+
DeveloperAlso Energy, Inc.Power Factors LLC

Customer experience

Stem PowerTrack

All ratings23 ratings
Positive17.4%
Neutral13.0%
Negative69.6%
Written reviews10 reviews
Positive20.0%
Neutral0.0%
Negative80.0%

Unity by Power Factors

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

In-app purchases

None

Stem PowerTrack

No in-app purchases

None

Unity by Power Factors

No in-app purchases

Questions

Is Stem PowerTrack free?
Stem PowerTrack is free to download, with no in-app purchases.
Is Unity by Power Factors free?
Unity by Power Factors is free to download, with no in-app purchases.
Which has better reviews, Stem PowerTrack or Unity by Power Factors?
Unity by Power Factors is rated higher. Stem PowerTrack averages 3.1 out of 5 from 42 ratings, while Unity by Power Factors averages 5.0 from 1 ratings.
Do Stem PowerTrack or Unity by Power Factors have ads?
Neither Stem PowerTrack nor Unity by Power Factors shows ads.
Which is updated more often, Stem PowerTrack or Unity by Power Factors?
Stem PowerTrack ships an update every 3 months, and Unity by Power Factors every 3 weeks. Most recently, Stem PowerTrack was updated on November 2, 2026 and Unity by Power Factors on October 31, 2026.

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