Comparison

Future Land vs STEP Vocabulary Builder

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

Head to head
About

Future Land

Explore the fascinating concepts of time dilation and length contraction as objects approach the speed of light. This educational tool visualizes how time and distance are perceived differently at relativistic speeds, demonstrating real-world physics principles.

Highlights
  • Lorentz contraction visualization
  • Time dilation explanation
  • Relativistic speed calculations
  • Eiffel Tower example
  • Future travel simulation
Features
Read full description

Lorentz contraction The lenght of an object moving at speeds approaching the speed of light, with respect to an observer at rest, will contract along the direction of motion by the factor L = L1 * sqrt(1-(v/c)^2) where L is the length observed by the observer in state of rest, L1 is the length measured when the object is motionless, 'v' is the velocity of the object and 'c' is the speed of light (about 300000 km/sec), In our case the Eiffel Tower (about 320 meters) when it approachs the speed of light its lenght will shrink as the screen image. The program will also display the correct data. Time in the moving system will be observed by a stationary observer to be running slower. In other words if the Eiffeil tower would travel during one year (tower time) at 95% of the speed of light, the elapsed time on the Earth will be equal to 3.2 years and the tower lenght will be about 100 meters. Travel into the future. It is possible "to travel into the future" by using a very speed spacecraft. Depending on the acceleration of the spacecraft (in our case from 1 to 5 G) and the time spent on board, on the Earth will spend a greater number of years.

About

STEP Vocabulary Builder

Learn new English words and improve your language skills with visual flashcards and interactive games. This app uses scientifically designed activities to enhance vocabulary, grammar, reading, listening, and writing.

Highlights
  • Visual flashcards
  • Interactive quizzes
  • Vocabulary and grammar games
  • Spaced learning
  • Adaptive learning
  • Progress tracker
  • Personalized revision tests
Features
Read full description

STEP English is the World's first 'Visual Vocabulary' app. It helps you learn new words through visual flashcards and interactive quizzes. It also contains 10+ scientifically designed games aimed at improving vocabulary and grammar. The visual techniques used in the app helps you remember new words in a way so that you will never forget them. The app consists of: - 25+ Word Sets which will help you learn 600+ new words through visual techniques. - Interactive quiz associated with each set to help you revise and reinforce what you have learnt. - 10+ games focussed around vocabulary, grammar, reading, listening & writing skills. Games: 1. Words Checker: Improve reading skills by playing this fun vocabulary game. 2. Space Pursuit: Improve writing skills by learning to tackle commonly confused English words. 3. Fly High: Build your vocabulary by learning new synonyms. 4. Reader's Digest: Improve reading skills by focussing on speed, accuracy, and comprehension. 5. Echo: Improve speaking and writing skills by correctly spelling words in this English dictation game. 6. Jelly Fizz: Improve speaking skills by learning phrasal verbs in an interesting way. 7. Panda's Trail: Refine your English grammar skills through this carefully crafted game. 8. Sea Voyage: Challenge your reading speed and retention by playing this engaging game. 9. Spell Safe: Learn to spell words that have confusing spellings with this game. 10. Word Maze: Challenge your vocabulary knowledge and quick-thinking ability by playing this vocabulary game FEATURES • Spaced learning and adaptive learning boost your brain to learn & retain lessons better • Best English vocabulary builder app to learn new words on the go • Progress tracker • Vocabulary revision tests that are personalized and adaptive • Handy flashcards to revise lessons effectively • Interesting word games and other language games to learn and improve English in a fun way Terms of Use: https://knudge.me/#!/terms Download the app for free and rediscover a fun way to learn English. Learning English on your mobile just got easier!

Screenshots

Future Land2 screens
STEP Vocabulary Builder4 screens

Verdict

The call

The clearest difference is price: STEP Vocabulary Builder at Free against Future Land's $0.99. STEP Vocabulary Builder also leads on rating (4.3 vs 1.0) and review sentiment (89% vs 50%). Future Land's advantage is in-app purchases (none vs 3) and iOS requirement (11.0 vs 13.0). On ads 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

STEP Vocabulary Builder is free to download; Future Land costs $0.99 up front. STEP Vocabulary Builder sells 3 in-app purchases, starting at $2.99 per 7 days. Future Land asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

STEP Vocabulary Builder holds the better App Store score, 4.3 against 1.0. That said, the two scores are not equally well evidenced: STEP Vocabulary Builder has 52 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of Future Land's written reviews are positive against 89% of STEP Vocabulary Builder's.

UpkeepUpdate frequency

Future Land ships an update every 40 months, STEP Vocabulary Builder every 11 days. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

Scorecard8 real differences · 2 level
Future Land versus STEP Vocabulary Builder: the parameters behind the verdict, then further details
ParameterFuture LandSTEP Vocabulary Builder
Price$0.99Free — better
Rating1.0 (1 ratings)4.3 (52 ratings) — better
Positive reviews50.0% of reviews89.4% of reviews — better
Number of ratings152 — better
Update frequencyEvery 40 monthsEvery 11 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better13.0
Further details — not scored
Size44 MB143 MB
Age rating4+4+
DeveloperPietro MassiminoKnudge Technology Private Limited

Customer experience

Future Land

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

STEP Vocabulary Builder

All ratings52 ratings
Positive82.7%
Neutral5.8%
Negative11.5%
Written reviews47 reviews
Positive89.4%
Neutral2.1%
Negative8.5%

In-app purchases

None

Future Land

No in-app purchases

3 purchases

STEP Vocabulary Builder

Subscriptions3
  • Step Pro Weekly Subscription$2.997 Days
  • Step Pro Monthly Subscription$9.991 Month
  • Step Pro Yearly Subscription3 Days trial$24.991 Year

Questions

Is Future Land free?
Future Land costs $0.99, with no in-app purchases.
Is STEP Vocabulary Builder free?
STEP Vocabulary Builder is free to download, with in-app purchases available.
Which has better reviews, Future Land or STEP Vocabulary Builder?
STEP Vocabulary Builder is rated higher. Future Land averages 1.0 out of 5 from 1 ratings, while STEP Vocabulary Builder averages 4.3 from 52 ratings.
Do Future Land or STEP Vocabulary Builder have ads?
Neither Future Land nor STEP Vocabulary Builder shows ads.
Which is updated more often, Future Land or STEP Vocabulary Builder?
Future Land ships an update every 40 months, and STEP Vocabulary Builder every 11 days. Most recently, Future Land was updated on November 1, 2026 and STEP Vocabulary Builder on November 7, 2026.

Other comparisons