# Stem PowerTrack vs SolarGrade

The clearest difference is review sentiment: SolarGrade at 100% against Stem PowerTrack's 20%. SolarGrade also leads on rating (5.0 vs 3.0) and update cadence (fortnightly vs every 3 months). Stem PowerTrack's advantage is iOS requirement (14.0 vs 16). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SolarGrade holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 40 and 16 respectively. Written reviews point the same way: 20% of Stem PowerTrack's written reviews are positive against 100% of SolarGrade's.

Stem PowerTrack ships an update every 3 months, SolarGrade fortnightly. The most recent releases landed on September 8, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Stem PowerTrack | SolarGrade |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (40 ratings)](https://appshunter.io/ios/app/stem-powertrack/id1187980669/reviews) | **[5.0 (16 ratings)](https://appshunter.io/ios/app/solargrade/id1563166615/reviews)** |
| Number of ratings | **40** | 16 |
| Positive reviews | 20.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 6 MB | 109 MB |
| Requires iOS | **14.0** | 16 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Also Energy, Inc.](https://appshunter.io/developer/464697387) | [HelioVolta](https://appshunter.io/developer/1720183204) |

## What reviewers say

### Stem PowerTrack

[App page](https://appshunter.io/ios/app/stem-powertrack/id1187980669)

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:** macOS Compatibility

**In-app purchases:** none


### SolarGrade

[App page](https://appshunter.io/ios/app/solargrade/id1563166615)

Streamline solar installation and field service with specialized checklists and automated reporting. This tool replaces manual paperwork with georeferenced issue tagging, photo documentation, and customizable reports. It helps teams work faster, standardize on-site tasks, and improve asset care.

**Highlights:** Solar-specific QA/QC, O&M, and inspection templates, Georeferenced issue tagging, Photo capture and editing, Automated and customizable reports, Automatic punch lists and task management, Offline mode and syncing, Data exports

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

**In-app purchases:** none


## Frequently asked questions

### Is Stem PowerTrack free?

Stem PowerTrack is free to download, with no in-app purchases.

### Is SolarGrade free?

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

### Which has better reviews, Stem PowerTrack or SolarGrade?

SolarGrade is rated higher. Stem PowerTrack averages 3.0 out of 5 from 40 ratings, while SolarGrade averages 5.0 from 16 ratings.

### Do Stem PowerTrack or SolarGrade have ads?

Neither Stem PowerTrack nor SolarGrade shows ads.

### Which is updated more often, Stem PowerTrack or SolarGrade?

Stem PowerTrack ships an update every 3 months, and SolarGrade fortnightly. Most recently, Stem PowerTrack was updated on September 8, 2026 and SolarGrade on September 17, 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.*