Comparison

Light vs Two Links Double Pendulum

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

Head to head
About

Light

Enhance your photos with unique light effects and custom messages. Choose backgrounds, paintbrushes, and colors to create personalized images for social media, greeting cards, or smartphone wallpapers.

Highlights
  • Add light effects to photos
  • Select backgrounds from templates or own photos
  • Choose from various paintbrushes and colors
  • Adjust brush size
  • Add custom messages
  • Save and share creations
  • Undo/erase unwanted edits
Features
Read full description

Add a gleam to your photos with the unique LEDVANCE Light-Painter! No matter whether you are talking about vacation photos, selfies or everyday snapshots – you can add a personal touch to them in a snap with the help of the Light-Painter app. How? It's a piece of cake! Just select a background. This can be your own photo or one found in our many image templates. You then select a paintbrush, the brush size and the color. Various effects can be produced with the different types of brushes – from a shimmering light to dual strands of light and 3D effects. Tap the brush that you want to use and then set the brush size by moving the slider from left to right with your finger. After everything is just the way you want it, you can close the control panel and get started. Use light to accentuate your images and add a message at will. You can also select something from the Light-Painter templates that you can integrate into your photo. Don’t like the result? Simply use the eraser to remove certain areas or go back one work step using the back arrow. Once you have finished your piece of art, you can save it and share it with your friends. You can use your self-designed images as background photos for your smartphone, as an enhancement for your social media account or as a special greeting card. What are you waiting for? Pick up a brush and create a sparkle!

About

Two Links Double Pendulum

Features
Read full description

Two Links brings one of physics' most beautiful chaotic systems to life. Watch a double pendulum swing, twist, and spiral in real-time 3D — then place it on your floor in Augmented Reality and walk around it. Features • Real-time double pendulum physics (RK4 integration) • AR mode — anchor the pendulum on any flat surface • Orbit the 3D scene freely or let it run hands-free • Adjust link length, pivot position, density, and color • Particle trail from the second link tip • Night sky environment with the Moon and Earth • Pause, shuffle, and watch the chaos reset

Screenshots

Light4 screens
Two Links Double Pendulum3 screens

Verdict

The call

The clearest difference is update cadence: Light at monthly against Two Links Double Pendulum's every 47 months. Light also leads on iOS requirement (9.0 vs 18.2). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Light ships an update monthly, Two Links Double Pendulum every 47 months. The most recent releases landed on September 24, 2026 and October 6, 2026 respectively.

Scorecard2 real differences · 8 level
Light versus Two Links Double Pendulum: the parameters behind the verdict, then further details
ParameterLightTwo Links Double Pendulum
PriceFreeFree
Rating2.7 (3 ratings) — better—
Positive reviews62.5% of reviews—
Number of ratings3 — better—
Update frequencyMonthly — betterEvery 47 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better18.2
Further details — not scored
Size55 MB281 MB
Age rating4+4+
DeveloperLEDVANCE GmbHEliott Radcliffe

In-app purchases

None

Light

No in-app purchases

None

Two Links Double Pendulum

No in-app purchases

Questions

Is Light free?
Light is free to download, with no in-app purchases.
Is Two Links Double Pendulum free?
Two Links Double Pendulum is free to download, with no in-app purchases.
Do Light or Two Links Double Pendulum have ads?
Neither Light nor Two Links Double Pendulum shows ads.
Which is updated more often, Light or Two Links Double Pendulum?
Light ships an update monthly, and Two Links Double Pendulum every 47 months. Most recently, Light was updated on September 24, 2026 and Two Links Double Pendulum on October 6, 2026.

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