Thermostat Controller vs Heat Index
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Thermostat Controller
Monitor and adjust your Venstar thermostat's temperature, humidity, and fan settings directly from your phone. View current and historical runtime data. Receive optional notifications for state changes.
- View current temperature and humidity
- Adjust set temperature
- Change heating/cooling mode
- Control fan settings
- Monitor daily runtime history
- Optional state change notifications
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This app lets you view the data from and control your Venstar thermostat locally. Note: "Locally" refers to the fact that your Venstar thermostat has a local API. This app is interacting with this local API. Meaning, unless you have remote mode enabled and are running the companion app on a computer, then, if your phone isn't connected to the same Wi-Fi network as your thermostat, you won't be able to read from it or control it. Data you can view: * Current temperature * Set temperature * Humidity * Mode (heat, cool, auto) * Fan state * Today’s runtime * Runtime for each day of the past week * The average daily runtime for the past week What you can control: * Increase/decrease the set temperature * Change the mode (heating, cooling, auto) * Change the fan mode (always on or auto) Optional push notifications are available to let you know when the thermostat state changes from idle to active (e.g. heating or cooling) or vice versa. These push notifications require the companion app to be running on a computer as well as an API key. More info here: https://thermostat-controller.studiojq.io/push An optional remote mode is now also available, which lets you view your thermostat data while not on the same Wi-Fi network as the thermostat (i.e. from anywhere). This remote mode requires the companion app to be running on a computer as well as an API key. The remote mode is view only. You cannot control your thermostat remotely. More info here: https://thermostat-controller.studiojq.io/remote Documentation: https://thermostat-controller.studiojq.io
Heat Index
This app provides real-time heat index readings from a connected worksite sensor. It helps supervisors and managers determine if extra breaks are needed based on current temperature and humidity conditions, ensuring worksite safety.
- Live heat index readings
- Home Screen widget
- 12-month history chart
- Sensor health monitoring
- Controlled team access
- Real-time temperature and humidity data
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When the heat climbs on a worksite, every crew needs the same clear answer: is it hot enough for an extra break right now? Heat Index gives you that answer in real time — straight from a sensor on your own site. Heat Index is the companion app for a connected worksite heat sensor. A small on-site device (a Raspberry Pi with a temperature and humidity sensor) reads conditions every hour, calculates the true "feels-like" heat index, and sends it securely to your team. Open the app — or just glance at the Home Screen widget — to see the current reading and whether today's extra heat break has been authorized. It's built for the people responsible for crews in the heat: warehouse and packing-floor supervisors, operations and EHS managers, commercial kitchens, and any jobsite where temperature drives safety decisions. WHAT YOU GET • Live now — the current heat index in big, glanceable numbers, with temperature and humidity. Green means an extra break is on; blue means conditions are below the threshold. • Home Screen widget — small, medium, and large sizes show the latest reading without opening the app. • 12-month history — daily peaks roll up into a clean monthly chart so you can see the whole season at a glance. • Sensor health — keep an eye on the Raspberry Pi's own temperature so your data never quietly drops out. • Controlled team access — each member joins your organization with a code, and an administrator approves who gets in. Your readings stay inside your organization. HOW IT WORKS Heat Index pairs with a connected sensor reporting from your site. You'll need an organization code from your administrator to join, and a sensor reporting data for your location. Once you're approved, the app opens straight to your live reading. SIGN IN Create an account with email and password, or use Sign in with Apple. You can delete your account and all of its data from inside the app at any time. PRIVACY We collect only what's needed to sign you in and connect you to your organization — your email, name, and account identifier. No ads. No tracking. No third-party analytics. Heat Index turns one sensor into one shared answer for the whole crew — so the call to take a break is based on real conditions, not guesswork.
Screenshots
Verdict
Thermostat Controller and Heat Index are too close to call on the numbers: across 8 compared parameters — price, rating, ratings volume and ads among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Thermostat Controller against 5.0 for Heat Index. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
| Parameter | Thermostat Controller | Heat Index |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 2 — better |
| Update frequency | Weekly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 5 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | JASON QUARTZ | Ninville Keith |
Customer experience
Thermostat Controller
Heat Index
In-app purchases
Thermostat Controller
No in-app purchases
Heat Index
No in-app purchases
Questions
Is Thermostat Controller free?
Is Heat Index free?
Which has better reviews, Thermostat Controller or Heat Index?
Do Thermostat Controller or Heat Index have ads?
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