# HeatSig

> HeatSig (iPhone/iPad app by Heatsig Pte. Ltd..)

- Source: https://appshunter.io/ios/app/heatsig/id6751530567 (this page in markdown: same URL + `.md`)
- Developer: [Heatsig Pte. Ltd.](https://appshunter.io/developer/1835618366)
- Category: Utilities, Health & Fitness
- Price: Free
- Age rating: 4+
- Requires: iOS 15.1 · 59 MB
- Languages: American English
- Released: 2025-10-01
- Data updated: 2026-08-01
- User reviews in markdown: https://appshunter.io/ios/app/heatsig/id6751530567/reviews.md

## What is HeatSig?

HeatSig is your IoT-powered companion for monitoring heat signatures with precision.
Connect to your thermal devices, stream real-time data, and visualize temperature changes in an intuitive dashboard.

Whether you’re tracking equipment, monitoring environments, or running experiments, HeatSig helps you stay informed and in control.

Features:
• Real-time heat signature monitoring via IoT sensors
• Secure MQTT/HTTP connectivity
• Clear visual dashboards for temperature and heat maps
• Works across networks — local and cloud
• Dark/Light theme support

Ideal for:
• Industrial monitoring
• Environmental tracking
• Smart labs & research projects
• IoT enthusiasts

Stay connected to the heat — with HeatSig.


## Version history (last 5 releases)

### 1.3 Greater Pairing — 2026-07-28

Updated UI to fix most bugs of navigating around the app.

### 1.2.25 — 2026-06-28

We've made several improvements to enhance stability, usability, and the overall experience:

* Fixed UI scaling issues on smaller iPhone displays (including devices such as iPhone XR, iPhone 11, iPhone 12/13/14/15/16, and their Pro variants with the 6.1-inch display).
* Fixed an issue where login failure messages were not displayed correctly.
* Resolved an authentication issue that prevented new users from registering or signing in.
* Refined form layouts and styling to better align with the latest iOS design language.
* Improved typography by adjusting font weights for better readability and consistency.
* Added quick edit buttons on the Home and Device dashboards, making it easier to rename homes and devices.
* Various additional fixes, UI refinements, and general performance improvements.

### 1.2.24 — 2026-06-26

- Fixed HeatSig pairing flow
- Added phone number field
- Added floor map
- Added informational graphics on home and device interface
- Added emergency alerts in the case of serious emergency
- Added device sharing capabilities
- Refined settings page
- Added live person count, shows the amount of people currently in a heat camera
- Removed China from the listing
- Fixed GUI alignments

And many more.

### 1.2.0 — 2025-10-17

With the new BLE flow for Wi-Fi provisioning, pairing with ESP32 devices have been smoothen, with great efficiency, to do quick pairing without interacting much in the phone settings.

### 1.0 — 2025-10-01

No release notes.

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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 2026-08-01.*