# Smart Temp SMT-400 — Thermostat Controller

> Remote thermostat control and scheduling app. (iPhone/iPad app by Smart Temp Australia Pty.Ltd.)

- Source: https://appshunter.io/ios/app/smart-temp-smt-400/id1439933628 (this page in markdown: same URL + `.md`)
- Developer: [Smart Temp Australia Pty.Ltd](https://appshunter.io/developer/1315471264)
- Category: Utilities, Weather
- Price: Free
- Age rating: 4+
- Requires: iOS 11.0 · 24 MB
- Languages: American English
- Released: 2019-11-28
- Data updated: 2026-06-25
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/smart-temp-smt-400/id1439933628/reviews.md

## What is Smart Temp SMT?

This current version of the Smart Temp 400 App allows you to control
1. Adding schedule
2. Managing schedule
3. Controlling Temperature over Knob
4. Controlling thermostat using different modes
5. Overriding active schedule for a period of time
6. Paring iOS App with Smart Temp thermostat
7. Sharing Smart Temp thermostat with just one click (Scanning QR code) and many more.

## Key features

- Add and manage schedules
- Control temperature via knob
- Switch between different thermostat modes
- Override active schedules
- Pair with Smart Temp thermostat
- Share thermostat access via QR code

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/smart-temp-smt-400/id1439933628/reviews.md

### 2/5 — Limited but works

*2025-01-04, version 1.1*

This app works fine for on/off and changing the temperature, but that’s it. 

Never been able to get scheduling to work, the cooling resets itself to 30 every time I use use the app, and no Watch app either. 

Certainly couldn’t call it Smart Temp.

### 1/5 — Rubbish system - not reliable, not smart

*2022-03-17, version 1.1*

Been using SmartTemp for a year now.  
The scheduling function is incredibly flakey, and really hard to adjust as the weather changes.  Basically forced to delete whole schedule for each wall unit and start from scratch each time.  Takes loads of time. 
Main server goes offline at least once per month which makes the ‘smart’ app useless.  And when it does go offline, there’s nothing that alerts you on the wall device or the app, so if you weren’t home you wouldn’t know.  
Have tried contacting the SmartTemp office who confirmed they took it down for maintenance couple of those times but they didn’t bother notifying any of their logged in users. 
Don’t use SmartTemp! There are so many better and far cheaper options.

## Frequently asked questions about Smart Temp SMT

### What can I do with Smart Temp SMT-400?

Smart Temp SMT-400 allows you to add and manage heating schedules, control the temperature using a virtual knob, switch between different thermostat modes, and override active schedules for a set period. You can also pair your iOS device with the thermostat and share access with others.

### Is Smart Temp SMT-400 free to use?

Yes, Smart Temp SMT-400 is available for free. There are no in-app purchases or advertisements within the application.

### What devices is Smart Temp SMT-400 compatible with?

Smart Temp SMT-400 is designed for iOS devices, including iPhone and iPad. It requires iOS 4.0 or later.

### How often is Smart Temp SMT-400 updated?

The latest version of Smart Temp SMT-400 is 1.1, which was last updated on January 5, 2020. The app was initially released on November 28, 2019.

### How do I share my Smart Temp thermostat with someone else?

You can share your Smart Temp thermostat with another user by simply scanning a QR code. This feature allows for quick and easy access sharing.

### What is the age rating for Smart Temp SMT-400?

Smart Temp SMT-400 has an age rating of 4+, making it suitable for a wide range of users.

### Can I control the temperature remotely with Smart Temp SMT-400?

Yes, the app allows you to control the temperature over a knob interface and manage thermostat settings remotely, provided your device is paired with the Smart Temp thermostat.

## Version history (last 2 releases)

### 1.1 — 2020-01-05

1. No devices Text and pull to refresh in home screen
2. UI Blocking issue fixed in Advance Pairing
3. User status handled

### 1.0 — 2019-11-28

No release notes.

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## More apps by Smart Temp Australia Pty.Ltd

- [Smart Temp Inspire Touch](https://appshunter.io/ios/app/smart-temp-inspire-touch/id1531578069)
- [Smart Temp Halo](https://appshunter.io/ios/app/smart-temp-halo/id6744888490)

All apps by Smart Temp Australia Pty.Ltd: https://appshunter.io/developer/1315471264

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-25.*