# Trane BAS Operator vs ARI GMS Mobile

The clearest difference is rating: ARI GMS Mobile at 3.0 against Trane BAS Operator's 2.4. ARI GMS Mobile also leads on iOS requirement (8.1 vs 12.0). Trane BAS Operator's advantage is update cadence (every 3 months vs every 36 months) and ratings volume (45 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

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

ARI GMS Mobile holds the better App Store score, 3.0 against 2.4. That said, the two scores are not equally well evidenced: Trane BAS Operator has 45 ratings behind it against 2, so its average is the more settled of the two.

Trane BAS Operator ships an update every 3 months, ARI GMS Mobile every 36 months. The most recent releases landed on October 14, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Trane BAS Operator | ARI GMS Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.4 (45 ratings)](https://appshunter.io/ios/app/trane-bas-operator/id583378807/reviews) | **[3.0 (2 ratings)](https://appshunter.io/ios/app/ari-gms-mobile/id1015579211/reviews)** |
| Number of ratings | **45** | 2 |
| Positive reviews | 35.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 36 months |
| Monetization | Free | Free |
| Size | 114 MB | 17 MB |
| Requires iOS | 12.0 | **8.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TRANE U.S. INC](https://appshunter.io/developer/583378910) | [ARI - Automotive Resources International](https://appshunter.io/developer/1015579210) |

## What reviewers say

### Trane BAS Operator

[App page](https://appshunter.io/ios/app/trane-bas-operator/id583378807)

Monitor and control your building's HVAC system remotely. View system status, manage alarms, and make adjustments to temperature and equipment settings to ensure optimal comfort and efficiency.

**Highlights:** View system status and graphics, Manage active and historic alarms, Acknowledge and comment on alarms, Adjust setpoints and override equipment, Remember connection information

**In-app purchases:** none


### ARI GMS Mobile

[App page](https://appshunter.io/ios/app/ari-gms-mobile/id1015579211)

This mobile tool extends a comprehensive garage management system, allowing users to efficiently search for work orders and manage parts inventory. It supports technicians in tracking vehicle maintenance schedules and repairs.

**Highlights:** Work order search, Work order parts management, Technician management, Vehicle preventive maintenance tracking, Parts inventory consolidation, Barcode scanning support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Trane BAS Operator free?

Trane BAS Operator is free to download, with no in-app purchases.

### Is ARI GMS Mobile free?

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

### Which has better reviews, Trane BAS Operator or ARI GMS Mobile?

ARI GMS Mobile is rated higher. Trane BAS Operator averages 2.4 out of 5 from 45 ratings, while ARI GMS Mobile averages 3.0 from 2 ratings.

### Do Trane BAS Operator or ARI GMS Mobile have ads?

Neither Trane BAS Operator nor ARI GMS Mobile shows ads.

### Which is updated more often, Trane BAS Operator or ARI GMS Mobile?

Trane BAS Operator ships an update every 3 months, and ARI GMS Mobile every 36 months. Most recently, Trane BAS Operator was updated on October 14, 2026 and ARI GMS Mobile on October 2, 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.*