Comparison

Thermometer vs Thermostat Controller

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Thermometer

This app transforms your iPhone or iPod Touch into a thermometer, displaying the exact outside temperature based on your current location. It provides detailed local weather conditions and allows you to check temperatures for other cities.

Highlights
  • Real-time outdoor temperature display
  • Location-based temperature readings
  • Local weather condition reports
  • Temperature checks for other cities
  • Celsius and Fahrenheit support
  • Universal app for all devices
Features
Read full description

Thermometer is the number 1 thermometer application on the AppStore. The most accurate thermometer application on the AppStore! Thermometer is the original and top selling application that turns your iPhone or iPod Touch into a thermometer. This application will tell you the exact outside temperature based on your current location (GPS or WiFi). An animation will show you the current outdoor temperature on an stylish red LED thermometer. ************************************************************ FEATURES : ************************************************************ ◉ Universal app. This application works on your iPad, iPhone or iPod Touch. One version for all devices! ◉ Local temperature based on your current position (GPS or WiFi). ◉ Local condition report, temperature, high & low, wind speed & direction, and humidity level. ◉ You can check the temperature for other cities. Choose the city you want to see weather for by scrolling through your saved cities. You can add or delete cities, and reorder your list. PLEASE, ENTER THE CITY AND THE COUNTRY. ◉ The temperature is displayed in Celsius or Fahrenheit. ◉ The most accurate thermometer application on the AppStore. ◉ The application is available in English, French, Spanish, Italian, German and Japanese. IMPORTANT : This application requires an active Internet connection to retrieve data. You also need to turn on "Location Services" option in the settings of your iPhone. If you like this application, please leave us a review on iTunes. Your support would greatly help. Thank you for taking the time to report any bugs or to request an enhancement to Thermometer application. Feedback is very important to us. We will do our best to answer queries. Email us at support@presselite.com

About

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.

Highlights
  • View current temperature and humidity
  • Adjust set temperature
  • Change heating/cooling mode
  • Control fan settings
  • Monitor daily runtime history
  • Optional state change notifications
Read full description

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

Screenshots

Thermometer3 screens
Thermostat Controller4 screens

Verdict

The call

The clearest difference is review sentiment: Thermostat Controller at 100% against Thermometer's 30%. Thermostat Controller also leads on rating (5.0 vs 4.4) and in-app purchases (none vs 1). Thermometer's advantage is ratings volume (4.2K vs 1) and device support (3 vs 1). On price there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Thermometer sells 1 one-off in-app purchase. Thermostat Controller asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Thermostat Controller holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Thermometer has 4.2K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 30% of Thermometer's written reviews are positive against 100% of Thermostat Controller's.

UpkeepUpdate frequency

Thermometer ships an update every 2 months, Thermostat Controller weekly. The most recent releases landed on October 20, 2026 and October 2, 2026 respectively.

Scorecard9 real differences · 1 level
Thermometer versus Thermostat Controller: the parameters behind the verdict, then further details
ParameterThermometerThermostat Controller
PriceFreeFree
Rating4.4 (4.2K ratings)5.0 (1 ratings) — better
Positive reviews29.9% of reviews100.0% of reviews — better
Number of ratings4.2K — better1
Update frequencyEvery 2 monthsWeekly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better16.0
Further details — not scored
Size48 MB5 MB
Age rating4+4+
DeveloperAlexandre MorcosJASON QUARTZ

Customer experience

Thermometer

All ratings4,229 ratings
Positive84.6%
Neutral4.9%
Negative10.5%
Written reviews335 reviews
Positive29.9%
Neutral6.9%
Negative63.3%

Thermostat Controller

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Thermometer

Reported bugs

3 issues
  • App crashes frequently
  • Doesn't detect location properly
  • Reported temperatures are inconsistent

Requested features

3 requests
  • Option to display indoor temperature
  • Real-time temperature updates
  • Ability to set temperature alerts/alarms

Thermostat Controller

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Thermometer

One-time1
  • Temperature Forecast$1.99
None

Thermostat Controller

No in-app purchases

Questions

Is Thermometer free?
Thermometer is free to download, with in-app purchases available.
Is Thermostat Controller free?
Thermostat Controller is free to download, with no in-app purchases.
Which has better reviews, Thermometer or Thermostat Controller?
Thermostat Controller is rated higher. Thermometer averages 4.4 out of 5 from 4.2K ratings, while Thermostat Controller averages 5.0 from 1 ratings.
Do Thermometer or Thermostat Controller have ads?
Thermometer shows ads; Thermostat Controller does not.
Which is updated more often, Thermometer or Thermostat Controller?
Thermometer ships an update every 2 months, and Thermostat Controller weekly. Most recently, Thermometer was updated on October 20, 2026 and Thermostat Controller on October 2, 2026.

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