Comparison

The Relativity Tales vs The Einstein Archive

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

Head to head
About

The Relativity Tales

Explore the principles of special relativity through interactive thought experiments and engaging narratives. This app transforms complex scientific concepts into intuitive experiences, making science accessible and emotionally resonant.

Highlights
  • Interactive thought experiments
  • Narrative-driven learning
  • Intuitive science exploration
  • Exploration of spacetime concepts
  • Courtroom thriller scenarios
  • Space exploration narratives
Features
Read full description

What if you ran close to the speed of light − would time really slow down? The Relativity Tales is an interactive science story that lets you experience Einstein's special relativity with your fingertips, no equations required. Play with the principles yourself, then step into stories where those very principles become the key. ■ Fingertips, not formulas Run the thought experiments Einstein could only perform in his head, right on your screen. Watch time flow differently for someone in motion, lengths shrink, and the very idea of "at the same time" fall apart before your eyes. ■ Stories where science is the plot Every principle you experience becomes the key to a story. · A courtroom thriller where the relativity of simultaneity cracks an impossible alibi · An explorer's dream of reaching the edge of the universe, made possible by length contraction · A moment where time seems to stand still, born from time dilation The moment you understand the science, the story starts to look different. ■ Contents Chapter 1. Lorentz Transformation − The invisible rules of spacetime Chapter 2. Relativity of Simultaneity − When "simultaneous" falls apart Chapter 3. A Story of Simultaneity − A spacetime-trick courtroom thriller Chapter 4. Length Contraction − The secret of shrinking distance Chapter 5. A Story of Length Contraction − An explorer's longing dream Chapter 6. Time Dilation − Does time keep a different beat? Chapter 7. A Story of Time Dilation − The moment time seemed to stop Chapter 8. Lorentz Playground − Lorentz transformation, your way ■ Perfect for - Science lovers who get a headache at the sight of equations - Anyone who watches a sci-fi movie and wants to know the science behind it - Anyone who's ever wondered, "So what IS relativity, anyway?" - Parents who want to share the wonder of science with their kids - Teachers looking for a great tool to show relativity in class ■ Good to know The first 3 chapters are free to play. The remaining chapters can be unlocked with an in-app purchase. School and institution inquiries: phyilm.official@gmail.com Take the equations out of science, add a story, and what remains is wonder. (science − equation + story = wonder) phyilm

About

The Einstein Archive

Explore the life and scientific contributions of Albert Einstein through an interactive timeline, detailed maps, and high-resolution images of his work. This app offers a comprehensive, offline experience without requiring an account or internet connection.

Highlights
  • Interactive timeline of life and discoveries
  • Local search functionality
  • Map view of significant locations
  • Deep zoom image viewer
  • Save favorite content
  • Offline and private operation
Features
Read full description

Albert Einstein by Airgapp is a self-contained journey through the life and mind of the physicist who revolutionized our understanding of space, time, and energy. Everything lives inside the app. Open it anywhere without an account or connection, and it works exactly the same. Explore Einstein's life from his birth in 1879 in Württemberg through his patent office years in Zurich, his rise to prominence with relativity, his immigration to America, his role in the atomic age, and his final years at Princeton. Discover the breakthroughs that changed science: special relativity, general relativity, the photoelectric effect, and the equation that became synonymous with his name. Features: Interactive timeline of Einstein's life and discoveries. Local search across the entire collection. Map view connecting Einstein to the places that shaped him. Deep zoom image viewer for letters, equations, and photographs. Favorites to save what matters to you. Completely offline and private. Your data never leaves your device.

Screenshots

The Relativity Tales4 screens
The Einstein Archive4 screens

Verdict

The call

The clearest difference is in-app purchases: The Einstein Archive at none against The Relativity Tales's 1. The Einstein Archive also leads on ads (none vs shown). On price, rating, ratings volume 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

Both are free to download. The Relativity Tales sells 1 one-off in-app purchase. The Einstein Archive asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for The Relativity Tales against 5.0 for The Einstein Archive. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Scorecard3 real differences · 7 level
The Relativity Tales versus The Einstein Archive: the parameters behind the verdict, then further details
ParameterThe Relativity TalesThe Einstein Archive
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings2 — better1
Update frequencyWeekly—
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size624 MB48 MB
Age rating9+4+
DeveloperSang Heon ParkFelicity Enterprises LLC

In-app purchases

1 purchases

The Relativity Tales

One-time1
  • Unlock "The Relativity Tales"$4.99
None

The Einstein Archive

No in-app purchases

Questions

Is The Relativity Tales free?
The Relativity Tales is free to download, with in-app purchases available.
Is The Einstein Archive free?
The Einstein Archive is free to download, with no in-app purchases.
Which has better reviews, The Relativity Tales or The Einstein Archive?
The Relativity Tales and The Einstein Archive are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do The Relativity Tales or The Einstein Archive have ads?
The Relativity Tales shows ads; The Einstein Archive does not.

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