Comparison

Pendulum Lab vs Sorting Visualizer

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

Head to head
About

Pendulum Lab

Features
Read full description

PendulumLab: Interactive Pendulum Physics Simulator Dive into the fascinating world of pendulum physics with PendulumLab! Whether you're a student, educator, or science enthusiast, this app brings the beauty and complexity of pendulum motion right to your fingertips. Key Features: Explore single, double, and triple pendulum systems Interact with real-time, visually stunning simulations Adjust parameters like length, angle, and gravity to see instant effects Visualize pendulum trajectories with customizable trails Toggle trajectory visibility for each pendulum bob Clear trajectories with a single tap for new experiments Perfect for: Students learning about harmonic motion and chaos theory Teachers demonstrating complex physics concepts Science enthusiasts curious about pendulum behavior Anyone fascinated by the interplay of physics and visual art Why PendulumLab? Intuitive controls make learning physics fun and accessible High-quality graphics provide a clear view of pendulum dynamics Real-time parameter adjustments allow for instant experimentation Trajectory visualization helps understand the complexity of multi-pendulum systems Unlock the secrets of pendulum motion, from simple harmonic oscillations to chaotic behavior. PendulumLab turns your device into a powerful physics laboratory, letting you explore, learn, and marvel at the wonders of motion. Download PendulumLab now and start your journey into the mesmerizing world of pendulum physics!

About

Sorting Visualizer

Features
Read full description

An Interactive Journey Through Algorithms Experience the mesmerizing world of sorting algorithms. Watch and listen as colorful bars dance their way to perfect order in this beautifully crafted educational app. The combination of smooth animations and dynamic sound creates an incredibly satisfying sensory experience that makes learning about computer science genuinely enjoyable. Hear the Sorting Turn your device into a soundscape as each comparison produces a unique tone based on the bar heights. The audio feedback creates a symphony of sorting that's not just educational – it's oddly satisfying and almost therapeutic! Visualize 12 Sorting Algorithms • Watch the methodical approach of Bubble Sort. • Experience the divide-and-conquer strategy of Quick Sort. • Marvel at the elegant recursion of Merge Sort. • And many more fascinating algorithms! Full Control at Your Fingertips • Customize your experience with different-sized arrays. • Control the speed from relaxing slow-motion to lightning-fast. • Toggle between uniform and non-uniform data distributions. • Start, stop, and randomize arrays at any time. Learn While Having Fun • Compare different algorithms in real-time. • Understand complex computer science concepts through intuitive visualization. • Perfect for students, teachers, and anyone curious about how computers sort data. • Whether you're a computer science student, a teacher, or just someone who finds satisfaction in watching chaos transform into order, this app offers a unique blend of education and entertainment. The stunning visual feedback combined with responsive audio cues creates an almost meditative experience as you watch each algorithm work its magic. • Optimized for landscape mode, this app delivers a premium experience that makes learning about sorting algorithms an engaging adventure. • Download now and discover why watching (and hearing) sorting algorithms can be so incredibly satisfying. • Requires iOS 17.6 or later

Screenshots

Pendulum Lab3 screens
Sorting Visualizer3 screens

Verdict

The call

The clearest difference is price: Sorting Visualizer at Free against Pendulum Lab's $0.99. Sorting Visualizer also leads on in-app purchases (none vs 1). Pendulum Lab's advantage is update cadence (every 5 weeks vs every 6 months) and device support (3 vs 1). On ads there is nothing between them.

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

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

Sorting Visualizer is free to download; Pendulum Lab costs $0.99 up front. Pendulum Lab sells 1 one-off in-app purchase. Sorting Visualizer asks for nothing beyond the download.

UpkeepUpdate frequency

Pendulum Lab ships an update every 5 weeks, Sorting Visualizer every 6 months. The most recent releases landed on November 4, 2026 and October 25, 2026 respectively.

Scorecard5 real differences Ā· 1 level
Pendulum Lab versus Sorting Visualizer: the parameters behind the verdict, then further details
ParameterPendulum LabSorting Visualizer
Price$0.99Free — better
Update frequencyEvery 5 weeks — betterEvery 6 months
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better26.0
Further details — not scored
Size4 MB1 MB
Age rating4+4+
Developerhyeonsu jeongAlexander Lee

In-app purchases

1 purchases

Pendulum Lab

One-time1
  • Triple Pendulum Unlock$0.99
None

Sorting Visualizer

No in-app purchases

Questions

Is Pendulum Lab free?
Pendulum Lab costs $0.99, and also offers in-app purchases.
Is Sorting Visualizer free?
Sorting Visualizer is free to download, with no in-app purchases.
Do Pendulum Lab or Sorting Visualizer have ads?
Neither Pendulum Lab nor Sorting Visualizer shows ads.
Which is updated more often, Pendulum Lab or Sorting Visualizer?
Pendulum Lab ships an update every 5 weeks, and Sorting Visualizer every 6 months. Most recently, Pendulum Lab was updated on November 4, 2026 and Sorting Visualizer on October 25, 2026.

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