Comparison

Learn R vs Three

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

Head to head
About

Learn R

Features
Read full description

Whether you're learning R Programming as a hobby, for school/college, or to build a career, this tutorial has you covered! It takes you from basics to advanced concepts like data structures — all with a sleek, interactive interface. Why Choose R Tutorial? - Free with no hidden charges! - Ad-Free for a distraction-free experience. - Available on all platforms. Features You'll Love: - Comprehensive Lessons: Master R Programming from A to Z. - Interview Questions: Practice with real interview Q&A. - Quizzes: Test your knowledge with multiple difficulty levels. - Demo Programs: Visualize concepts with hands-on examples. - Clear Syntax: Learn step-by-step with organized syntax explanations. Website: www.OnePercent.club LinkedIn: https://www.Linkedin.Com/Company/Onepercent-Club/

About

Three

Explore the fascinating beauty of gravity and celestial motion. Interact with three bodies, discover countless orbital paths, and experiment with your own gravity scenarios. Turn curiosity into understanding with this educational simulation.

Highlights
  • Explore 16 classic periodic solutions
  • Discover 10,059 3D periodic orbits
  • Experiment with custom gravity scenarios
  • Learn about the three-body problem
  • Offline exploration of orbits
  • Interactive celestial motion simulation
Features
Read full description

Three bodies. Countless paths. Watch the beauty of gravity unfold. Three-Body Simulation brings abstract celestial motion into a world of orbits you can watch, interact with, and explore. See three bodies pull on one another as their trails gradually draw patterns, and discover how a simple law of gravity produces rich and fascinating motion. Explore 16 classic periodic solutions From the flowing Figure Eight to Butterfly, Moth, and Bumblebee, discover the shapes and rhythms of different periodic solutions. Detailed introductions to each orbit explain the motion behind these patterns. Discover 10,059 three-dimensional periodic orbits Explore published spatial periodic solutions and discover paths that weave and curve through space. Choose an orbit by number or discover one at random, then rotate the view to see its shape from different directions. Try your own gravity experiment Adjust the mass, initial position, and velocity of each body and watch how the orbit changes. You can also explore random three-body motion to see how the bodies approach, circle, and move away from one another. Turn curiosity into understanding Learn about the origins, history, and basic principles of the three-body problem. See the full system of three equations of motion, explore classic periodic solutions, and learn how the 10,059 spatial periodic orbits were discovered. Let the paths you see become a starting point for understanding gravity and motion. Available on iPhone and iPad in ten languages, including Chinese, English, and Japanese. Orbit data, simulations, and introductions are included in the app, so the core exploration experience works offline. The complete orbit catalog, random motion, and custom experiments are unlocked with a one-time in-app purchase.

Screenshots

Learn R4 screens
Three3 screens

Verdict

The call

The clearest difference is in-app purchases: Learn R at none against Three's 1. Learn R also leads on iOS requirement (12.0 vs 16.0). On price, 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

Both are free to download. Three sells 1 one-off in-app purchase. Learn R asks for nothing beyond the download.

Scorecard2 real differences · 7 level
Learn R versus Three: the parameters behind the verdict, then further details
ParameterLearn RThree
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequency—Every 5 days
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better16.0
Further details — not scored
Size27 MB10 MB
Age rating4+4+
DeveloperOnePercent志强 曾

In-app purchases

None

Learn R

No in-app purchases

1 purchases

Three

One-time1
  • Pro Lifetime Unlock$1.99

Questions

Is Learn R free?
Learn R is free to download, with no in-app purchases.
Is Three free?
Three is free to download, with in-app purchases available.
Do Learn R or Three have ads?
Neither Learn R nor Three shows ads.

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