Comparison

Orbit vs Heat Index Pro

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

Head to head
About

Orbit

Visualize the sun's movement and position with an intuitive clock interface and a sun compass. Utilize augmented reality to pinpoint the sun's location and track daylight hours for multiple saved places. This app works offline and is designed for photographers, travelers, surveyors, and architects.

Highlights
  • Intuitive clock visualization of sun movement
  • Sun compass for accurate position tracking
  • Augmented reality sun tracking
  • Multiple location support
  • Sunrise, sunset, dawn, and dusk times
  • Offline functionality
Features
Currently charting
Read full description

Tracking the sun position has never been so simple and beautiful. Orbit unique clock visualisation shows you the sun movement in a complete intuitive way. Turn the clock ring to see the sun movement and position at any time of the day. Orbit features a sun compass accurately tracks the sun position. Use augmented reality to track the sun position, with a pointer on the iPhone camera pointing you to the right direction. Add multiple locations to keep track of the day length, sunrise, sunset, dawn and dusk time, sun position of your favorite places. Designed for photographer, traveller, surveyor and architect. Orbit will work even without internet connection. Features: ● Clock ring to track sun movement ● Sun compass to track the sun position ● Azimuth and elevation (numeric and pictorial) ● Check sun position on any location on any date ● Augmented reality view to track the sun using camera ● Sunrise and sunset time ● Day and night length, dawn and dusk time ● Browse any place their current local time Get Orbit now and be amazed how easy tracking the sun position, daylight length, and local time of your favorite places can be. _______________________ User reviews: - "Works in Arctic! It was great to find an app that gives a reasonable result in the Arctic here." - by Peter the gardener, UK - "Neat! Very nice app." - by Reitveld, USA - "Life saver" - by Dave C L, USA - "Perfect little app" - by Icantwinssss, USA _______________________ Support: Have any question or feedback? Please get in touch with our tech support at support@tapclay.com

About

Heat Index Pro

This tool calculates the "felt air temperature" by combining air temperature and relative humidity using a specific scientific equation. It provides current weather conditions and allows users to search for and save favorite locations worldwide.

Highlights
  • Heat Index calculation (Rothfusz equation)
  • Current temperature and humidity
  • Choice of Celsius, Fahrenheit, and Kelvin
  • Map current location
  • Search and save unlimited favorite cities
  • Intuitive graphics and ease of use
Features
Read full description

The first "Heat Index" tool that uses the Lans P. Rothfusz equation. [Description] The heat index (HI) is an index that combines air temperature and relative humidity, in shaded areas, that is the feeling of "hot" or "cold" that is felt; it is due not only to the air temperature, but also to other environmental conditions, such as humidity and wind. The heat index was developed in 1979 by Robert G. Steadman. The computation of the heat index is a refinement of a result obtained by multiple regression analysis carried out by Lans P. Rothfusz and described in a 1990 National Weather Service (NWS) Technical Attachment (SR 90-23). The heat index is also known as the "felt air temperature", "apparent temperature", "real feel" or "feels like". The humidity in the air can increase the sensation of heat, while the wind can increase the sensation of cold. For example, when the temperature is 32°C (90°F) with 70% relative humidity, the heat index is 41°C (106°F). [How does it work] Wherever you are, you will have the Heat Index, temperature, humidity and weather conditions. Search for new locations and they will automatically be added to your favorites. Make sure you have activated the location services on your device, at this point the App will detect your geographical position. [Features] - Heat Index calculated with the Rothfusz equation - Temperature - Humidity - Effects of the Heat Index - Choice of 3 units of measurement: celsius, fahrenheit and kelvin - Map current location - Search City (without limits) - Save favorite places (without limits) - Intuitive graphics - Ease of use [Supported languages] English, Italian, Spanish, French, German, Portuguese, Dutch, Russian, Chinese, Japanese, Danish, Finnish, Norwegian, Swedish. [Support] If you need help please do not hesitate to contact us at info@lionsapp.com, or visit www.lionsapp.com If you like the App, don't forget to leave us a comment on the App Store.

Screenshots

Orbit4 screens
Heat Index Pro4 screens

Verdict

The call

The clearest difference is review sentiment: Orbit at 65% against Heat Index Pro's 25%. Orbit also leads on rating (4.3 vs 3.9) and price ($0.99 vs $4.99). Heat Index Pro's advantage is update cadence (every 5 weeks vs every 27 months). On ratings volume, ads, in-app purchases and monetization model 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

Orbit costs $0.99 and Heat Index Pro $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Orbit holds the better App Store score, 4.3 against 3.9. Both are backed by a comparable volume of ratings — 4 and 9 respectively. Written reviews point the same way: 65% of Orbit's written reviews are positive against 25% of Heat Index Pro's.

UpkeepUpdate frequency

Orbit ships an update every 27 months, Heat Index Pro every 5 weeks. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

Scorecard6 real differences · 5 level
Orbit versus Heat Index Pro: the parameters behind the verdict, then further details
ParameterOrbitHeat Index Pro
Price$0.99 — better$4.99
Rating4.3 (4 ratings) — better3.9 (9 ratings)
Positive reviews64.7% of reviews — better25.0% of reviews
Number of ratings49 — better
Update frequencyEvery 27 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank#18 — better—
DevicesiPhone, iPodiPhone, iPad
Requires iOS9.0 — better26.0
Further details — not scored
Size15 MB13 MB
Age rating4+4+
DeveloperTapclayLionsApp di Nallbati Elton

Customer experience

Orbit

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews17 reviews
Positive64.7%
Neutral5.9%
Negative29.4%

Heat Index Pro

All ratings9 ratings
Positive77.8%
Neutral0.0%
Negative22.2%
Written reviews4 reviews
Positive25.0%
Neutral25.0%
Negative50.0%

In-app purchases

None

Orbit

No in-app purchases

None

Heat Index Pro

No in-app purchases

Questions

Is Orbit free?
Orbit costs $0.99, with no in-app purchases.
Is Heat Index Pro free?
Heat Index Pro costs $4.99, with no in-app purchases.
Which has better reviews, Orbit or Heat Index Pro?
Orbit is rated higher. Orbit averages 4.3 out of 5 from 4 ratings, while Heat Index Pro averages 3.9 from 9 ratings.
Do Orbit or Heat Index Pro have ads?
Neither Orbit nor Heat Index Pro shows ads.
Which is updated more often, Orbit or Heat Index Pro?
Orbit ships an update every 27 months, and Heat Index Pro every 5 weeks. Most recently, Orbit was updated on November 1, 2026 and Heat Index Pro on October 29, 2026.

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