Comparison

SPHERE OS vs Learn Acoustics Engineering

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

Head to head
About

SPHERE OS

Explore Earth's dynamic systems with an interactive digital globe. Visualize real-time data like cloud cover, seismic activity, and pollution, and engage through voice commands, gestures, and augmented reality. This tool transforms learning about our planet for educational and exhibition purposes.

Highlights
  • Real-time scientific data visualization
  • Voice recognition for navigation
  • Gesture-based globe control
  • Augmented Reality (AR) mode
  • QR code content integration
  • Customizable playlists for presentations
Features
Read full description

Still in the global age, children born in 21st century use 2D maps invented in 16th century, or conventional analogue globes. In order to update our perception on the condition of our planet, we would like to launch a brand-new interactive digital globe (named “Sphere”, http://sphere.blue/en). Operated with iPad, the globe represents a variety of scientific data such as the near real-time cloud distribution (satellite image updated hourly through the net) , live-cam image from around the world, seismic events and plate tectonics (with the animation of continental drift), trace of migratory birds and whales, the global transfer of air pollutants and marine debris, global warming simulations, etc. You can interact with the globe in various ways. 1) Voice recognition function : By addressing the name of cities or contents, the globe will rotate and it shows the live image of the cities or the related data either on the hemispheric dome or on the iPad. 2) By manipulating the globe icon at the right bottom of the iPad screen, you can easily spin the globe. By tapping the icons beside the globe icon, you can overlay national borderline, latitude/longitude lines, etc. 3) Hold your hand over the globe, and the globe will respond by the sign (the appearance of circle) showing that it is sensing your presence. Slowly move your palm, just like caressing the virtual atmosphere of the globe, and it will rotate in the direction you want to spin. 4) If you bring some points on the globe to the magnifying pointer zone, you will get some information on the local sites. 5) In the AR mode (by tapping AR icon at the bottom of the iPad), you use iPad as a window to browse virtually floating contents on the globe, such as national flag (browse data on each country by tapping the flag) , the rapidly increasing wind power generation around the globe (illustrated with the virtual windmills standing on each country), aurora circle floating above polar regions, etc. 6) You can show a variety of contents by using QR code reader function. Hold some items such as miniature animals or books (on which a QR code is attached) in front of the iPad, and the globe will show contents related to the item. (ex. The miniature Polar Bear will serve as a trigger to start the animation of the diminishing polar ice in recent years.) This function turn this globe into a sort of Edutainment tool for science museum and schools. 7) By using “Playlist” function, you can select necessary content out of over 100 pre-installed programs and edit the original scenario (Manual or Autoplay mode) for specific exhibitions, lectures, and presentations. The original model of our digital globe is called “Tangible Earth” and is disseminated around the world over the last decade, installed and presented at various museums and international conferences such as G8 Summit in Japan, the Summer-Davos forums (WEF), UN headquarter (Geneva and NY), etc. Now we would like to launch a popular edition (much more portable and cheaper) for schools and small museums, shops.

About

Learn Acoustics Engineering

Features
Read full description

Acoustics engineering Acoustical engineering (also known as acoustic engineering) is the branch of engineering dealing with sound and vibration. It includes the application of acoustics, the science of sound and vibration, in technology. Acoustical engineers are typically concerned with the design, analysis and control of sound. The branch of engineering that analyzes sounds and vibration in technology. It's the scientific application of implementing and developing solutions to reduce unwanted noise and vibrations caused by machines and human activity. Noise abatement technologies can reduce noise pollution in settings such as airports, schools, factories, office buildings, homes, bridges and train stations. Acoustic engineering may also enhance the acoustical experience in concert halls and recording studios. Audio Engineering Audio engineering is a broad field, and there’s a lot more to it than you might think. With a wide range of career options and responsibilities, audio experts can perform a myriad of jobs. Here is your ultimate guide to what audio engineering is, so you can understand the ins and outs of the audio world. Audio Engineer Roles There are five specialized roles within the world of audio engineering: recording engineer, mixing engineer, mastering engineer, live sound engineer, and multimedia sound engineer. Each plays a specific role within the music industry, and the path to each career has its own unique characteristics. What Does an Acoustic Engineer Do? Acoustics engineers are electronics engineers who specialize in designing and developing technologies that solve problems related to sound. For instance, they may apply fundamental scientific principles to find ways to monitor and manipulate sound levels or improve sound clarity. Depending on their area of interest within the field, acoustic engineers may specialize in architectural acoustics, noise control, structural acoustics or underwater acoustics. They often work with architects on building designs, but they can also find jobs related to noise reduction in factories and other industrial environments.

Screenshots

SPHERE OS3 screens
Learn Acoustics Engineering4 screens

Verdict

The call

The clearest difference is price: SPHERE OS at Free against Learn Acoustics Engineering's $1.99. SPHERE OS also leads on update cadence (every 3 weeks vs every 31 months). Learn Acoustics Engineering's advantage is iOS requirement (13.0 vs 15.0). On ads, in-app purchases and device support 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

SPHERE OS is free to download; Learn Acoustics Engineering costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SPHERE OS ships an update every 3 weeks, Learn Acoustics Engineering every 31 months. The most recent releases landed on September 9, 2026 and September 7, 2026 respectively.

Scorecard3 real differences · 7 level
SPHERE OS versus Learn Acoustics Engineering: the parameters behind the verdict, then further details
ParameterSPHERE OSLearn Acoustics Engineering
PriceFree — better$1.99
Rating1.0 (2 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 3 weeks — betterEvery 31 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size951 MB41 MB
Age rating4+4+
DeveloperLNSOFTMuhammad Umair

In-app purchases

None

SPHERE OS

No in-app purchases

None

Learn Acoustics Engineering

No in-app purchases

Questions

Is SPHERE OS free?
SPHERE OS is free to download, with no in-app purchases.
Is Learn Acoustics Engineering free?
Learn Acoustics Engineering costs $1.99, with no in-app purchases.
Do SPHERE OS or Learn Acoustics Engineering have ads?
Neither SPHERE OS nor Learn Acoustics Engineering shows ads.
Which is updated more often, SPHERE OS or Learn Acoustics Engineering?
SPHERE OS ships an update every 3 weeks, and Learn Acoustics Engineering every 31 months. Most recently, SPHERE OS was updated on September 9, 2026 and Learn Acoustics Engineering on September 7, 2026.

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