Comparison

Strangely Attractive vs Learning Transformer

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

Head to head
About

Strangely Attractive

Features
Read full description

Strangely Attractive turns the equations of chaos into something you can watch. Six classic strange attractors β€” Lorenz, RΓΆssler, Aizawa, Thomas, Halvorsen, and Chen β€” each drawn live as a single glowing trajectory that never quite repeats. A handful of simple rules, tracing an endlessly intricate shape. β€’ See it in 3D. Orbit the attractor in a real phase space, or flip to a clean 2D canvas. β€’ Read the math. The exact differential equations behind each system, set beautifully on screen. β€’ Learn by doing. Guided lessons walk through sensitive dependence β€” the butterfly effect β€” the Lyapunov exponent, and how Euler and RK4 integration drift apart. β€’ Tune it. Adjust each system's parameters and watch the shape transform. β€’ Home Screen widgets. Pin a favorite attractor where you'll see it. No account, no tracking, no network. Just the strange beauty of deterministic chaos. Made by Luke Steuber.

About

Learning Transformer

Features
Read full description

A Transformer, built by hand and shown one step at a time. Twenty-three screens follow "Attention Is All You Need" (Vaswani et al., 2017) in the paper's own order: a word becoming numbers, the three vectors, the scores, the softmax, four heads merged into one, the mask, the second attention, and the loop that writes one word at a time. What this is not: a trained model. Every weight here was set by hand, so that each one can be read in a single line. Nine numbers stand for a word instead of 512. One encoder layer and one decoder layer instead of six of each. Four heads, four words of vocabulary, one short sentence. What it is: the paper's arithmetic at a size you can check by hand. Every number on every screen is computed while you look at it β€” no videos, no quizzes, no account, no network. Steps 1 to 10 are free. Steps 11 to 23 are one purchase, made once and kept.

Screenshots

Strangely Attractive4 screens
Learning Transformer3 screens

Verdict

The call

The clearest difference is in-app purchases: Strangely Attractive at none against Learning Transformer's 1. On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Learning Transformer sells 1 one-off in-app purchase. Strangely Attractive asks for nothing beyond the download.

Scorecard1 real difference Β· 5 level
Strangely Attractive versus Learning Transformer: the parameters behind the verdict, then further details
ParameterStrangely AttractiveLearning Transformer
PriceFreeFree
Update frequencyEvery 2 weeksβ€”
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details β€” not scored
Size12 MB1 MB
Age rating4+4+
DeveloperLanguageCraftSungjun Kim

In-app purchases

None

Strangely Attractive

No in-app purchases

1 purchases

Learning Transformer

One-time1
  • the decoder$3.99

Questions

Is Strangely Attractive free?
Strangely Attractive is free to download, with no in-app purchases.
Is Learning Transformer free?
Learning Transformer is free to download, with in-app purchases available.
Do Strangely Attractive or Learning Transformer have ads?
Neither Strangely Attractive nor Learning Transformer shows ads.

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