# Locus Mobile vs Stem PowerTrack

The clearest difference is review sentiment: Locus Mobile at 75% against Stem PowerTrack's 20%. Locus Mobile also leads on rating (4.8 vs 3.0). Stem PowerTrack's advantage is ratings volume (40 vs 6). On price, update cadence, 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.

Locus Mobile holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: Stem PowerTrack has 40 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 75% of Locus Mobile's written reviews are positive against 20% of Stem PowerTrack's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 4, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Locus Mobile | Stem PowerTrack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (6 ratings)](https://appshunter.io/ios/app/locus-mobile/id925137037/reviews)** | [3.0 (40 ratings)](https://appshunter.io/ios/app/stem-powertrack/id1187980669/reviews) |
| Number of ratings | 6 | **40** |
| Positive reviews | **75.0% of reviews** | 20.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | Free |
| Size | 7 MB | 6 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Locus Technologies](https://appshunter.io/developer/420751059) | [Also Energy, Inc.](https://appshunter.io/developer/464697387) |

## What reviewers say

### Locus Mobile

[App page](https://appshunter.io/ios/app/locus-mobile/id925137037)

This app facilitates efficient field data collection and upload for environmental information management systems. It offers an interactive map interface, location intelligence, and data validation to ensure accuracy and improve workflow, even in remote areas.

**Highlights:** Accurate field data collection, Offline data entry and synchronization, Interactive map interface with location intelligence, Configurable data entry rules and validation, Ad hoc sampling and location management, Status tracking with labeling and color coding

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Locus Mobile free?

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

### Is Stem PowerTrack free?

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

### Which has better reviews, Locus Mobile or Stem PowerTrack?

Locus Mobile is rated higher. Locus Mobile averages 4.8 out of 5 from 6 ratings, while Stem PowerTrack averages 3.0 from 40 ratings.

### Do Locus Mobile or Stem PowerTrack have ads?

Neither Locus Mobile nor Stem PowerTrack shows ads.

### Which is updated more often, Locus Mobile or Stem PowerTrack?

Locus Mobile ships an update every 3 months, and Stem PowerTrack every 3 months. Most recently, Locus Mobile was updated on October 4, 2026 and Stem PowerTrack on September 25, 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.*