# Trane BAS Occupant vs airStore 3D (Simulation)

The clearest difference is update cadence: Trane BAS Occupant at every 3 months against airStore 3D (Simulation)'s every 7 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Trane BAS Occupant ships an update every 3 months, airStore 3D (Simulation) every 7 months. The most recent releases landed on October 18, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Trane BAS Occupant | airStore 3D (Simulation) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.2 (5 ratings)](https://appshunter.io/ios/app/trane-bas-occupant/id1080355682/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 7 months |
| Monetization | Free | — |
| Size | 133 MB | 235 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TRANE U.S. INC](https://appshunter.io/developer/583378910) | [Johnson Controls, Inc.](https://appshunter.io/developer/503559091) |

## What reviewers say

### Trane BAS Occupant

[App page](https://appshunter.io/ios/app/trane-bas-occupant/id1080355682)

Manage building comfort and system status directly from your mobile device. Adjust temperatures, modify schedules, and receive alerts for critical issues requiring attention.

**Highlights:** Temperature adjustment, Schedule management, Critical alert monitoring, Building system status view, Occupant comfort control

**In-app purchases:** none


### airStore 3D (Simulation)

[App page](https://appshunter.io/ios/app/airstore-3d-simulation/id1619951750)

**In-app purchases:** none


## Frequently asked questions

### Is Trane BAS Occupant free?

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

### Is airStore 3D (Simulation) free?

airStore 3D (Simulation) is free to download, with no in-app purchases.

### Do Trane BAS Occupant or airStore 3D (Simulation) have ads?

Neither Trane BAS Occupant nor airStore 3D (Simulation) shows ads.

### Which is updated more often, Trane BAS Occupant or airStore 3D (Simulation)?

Trane BAS Occupant ships an update every 3 months, and airStore 3D (Simulation) every 7 months. Most recently, Trane BAS Occupant was updated on October 18, 2026 and airStore 3D (Simulation) on October 16, 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.*