Comparison

SPHERE OS vs Learn Japanese Fast

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 Japanese Fast

Master Japanese vocabulary with science-based spaced repetition. Expand your word bank with over 1,000 common terms and track your daily study progress. This tool is designed to boost your learning efficiency and communication skills.

Highlights
  • Expand vocabulary with 1,000+ common words
  • Science-based spaced repetition for efficient learning
  • Track daily study progress
  • Learn Hiragana, Katakana, and Kanji
  • Boost communication skills
Features
Read full description

Improve your Japanese vocabulary with science based spaced repitition to help you learn FAST! Main Features: - Expand Your Vocabulary: Learn over 1,000 common words. - Science-Based Spaced Repetition: Learn faster and more efficiently, and retain information longer. - Track Your Progress: Easily keep track of the number of cards you study each day. Our app is the perfect tool to support your Japanese learning journey. Boost your vocabulary effectively and improve your communication skills! Terms Of Use can be found at: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://www.termsfeed.com/live/0a545333-2273-4270-b6d5-27f2f54f0420

Screenshots

SPHERE OS3 screens
Learn Japanese Fast4 screens

Verdict

The call

The clearest difference is rating: Learn Japanese Fast at 5.0 against SPHERE OS's 1.0. Learn Japanese Fast also leads on update cadence (every 3 days vs every 3 weeks). SPHERE OS's advantage is in-app purchases (none vs 3) and device support (3 vs 1). On price, ratings volume, ads and iOS requirement 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. Learn Japanese Fast sells 3 in-app purchases, starting at $4.99 per 7 days. SPHERE OS asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Learn Japanese Fast holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

SPHERE OS ships an update every 3 weeks, Learn Japanese Fast every 3 days. The most recent releases landed on October 30, 2026 and October 5, 2026 respectively.

Scorecard5 real differences · 5 level
SPHERE OS versus Learn Japanese Fast: the parameters behind the verdict, then further details
ParameterSPHERE OSLearn Japanese Fast
PriceFreeFree
Rating1.0 (2 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings2 — better1
Update frequencyEvery 3 weeksEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.0
Further details — not scored
Size951 MB3 MB
Age rating4+4+
DeveloperLNSOFTGabe Rogers

Customer experience

SPHERE OS

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Learn Japanese Fast

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

SPHERE OS

No in-app purchases

3 purchases

Learn Japanese Fast

Subscriptions3
  • 週間$4.997 Days
  • 月額$15.991 Month
  • 年間7 Days trial$48.991 Year

Questions

Is SPHERE OS free?
SPHERE OS is free to download, with no in-app purchases.
Is Learn Japanese Fast free?
Learn Japanese Fast is free to download, with in-app purchases available.
Which has better reviews, SPHERE OS or Learn Japanese Fast?
Learn Japanese Fast is rated higher. SPHERE OS averages 1.0 out of 5 from 2 ratings, while Learn Japanese Fast averages 5.0 from 1 ratings.
Do SPHERE OS or Learn Japanese Fast have ads?
Neither SPHERE OS nor Learn Japanese Fast shows ads.
Which is updated more often, SPHERE OS or Learn Japanese Fast?
SPHERE OS ships an update every 3 weeks, and Learn Japanese Fast every 3 days. Most recently, SPHERE OS was updated on October 30, 2026 and Learn Japanese Fast on October 5, 2026.

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