Comparison

Terra 3D vs Internal Waves

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

Head to head
About

Terra 3D

Create and explore realistic 3D worlds with dynamic day-night cycles and water simulations. Capture stunning views and set them as wallpapers, or share them with friends.

Highlights
  • Terrain generation
  • Day-night cycle
  • Water simulation
  • Sky simulation
  • Focus effect
  • Bloom and Glow effects
Features
Read full description

Generate terrain and explore it. Take photo of view You like and set it as a wallpaper. Share Your photos with friends on social networks. Features: -Terrain generator -Day-night cycle -Water simulation -Sky simulation -Focus effect -Bloom and Glow effect

About

Internal Waves

Create interactive particle art that responds to touch and music. This mindfulness experience offers a calming way to express yourself with light and motion, perfect for relaxation or creative exploration. Features AR mode for painting in your real-world space.

Highlights
  • Interactive particle art creation
  • Music-reactive visuals
  • Augmented Reality (AR) mode
  • Multi-touch drawing
  • Customizable particle effects
  • Mindfulness and relaxation focus
Features
Read full description

Discover calm, creativity, and connection through interactive particle art. Internal Waves – Particle Flow is a mindfulness experience that lets you draw, play, and express yourself with light and motion. Whether you're relaxing before bed or just need a moment to reset, touch the screen and watch beautiful, fluid particles respond to your fingers — or to your music. Features: Draw with your fingers using flowing, glowing particle trails Visuals that react to music — yours or built-in tracks AR mode (on supported devices) to paint with light in your real-world space Supports up to 10-finger multi-touch drawing Add motion drift, color variation, and more to customize your vibe No goals. No pressure. Just motion, sound, and light — designed to help you breathe, explore, and reset. Great For: Mindfulness and meditation Visual stimulation and relaxation Music lovers and visual artists Late-night winding down Just vibing out when you need a break Tap in and feel the flow. Internal Waves – Particle Flow is more than an app — it's a state of mind. App Store Connect and the Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Terra 3D3 screens
Internal Waves4 screens

Verdict

The call

The clearest difference is review sentiment: Terra 3D at 60% against Internal Waves's 0%. Terra 3D also leads on rating (4.0 vs 2.0) and ads (none vs shown). Internal Waves's advantage is update cadence (every 10 days vs every 3 weeks). On price, ratings volume, in-app purchases and monetization model 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. Terra 3D sells 6 one-off in-app purchases and Internal Waves sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Terra 3D holds the better App Store score, 4.0 against 2.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 60% of Terra 3D's written reviews are positive against 0% of Internal Waves's.

UpkeepUpdate frequency

Terra 3D ships an update every 3 weeks, Internal Waves every 10 days. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

Scorecard5 real differences · 5 level
Terra 3D versus Internal Waves: the parameters behind the verdict, then further details
ParameterTerra 3DInternal Waves
PriceFreeFree
Rating4.0 (2 ratings) — better2.0 (1 ratings)
Positive reviews60.0% of reviews — better0.0% of reviews
Number of ratings2 — better1
Update frequencyEvery 3 weeksEvery 10 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better13.0
Further details — not scored
Size15 MB133 MB
Age rating4+4+
DeveloperViacheslav KhakhulinRiley McKinnon

Customer experience

Terra 3D

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

Internal Waves

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

6 purchases

Terra 3D

One-time6
  • Snow Mountains$0.99
  • Ocean$0.99
  • Desert$0.99
Show 3 more
  • Red Mountains$0.99
  • Mushroomland$0.99
  • Premium$1.99
2 purchases

Internal Waves

Subscriptions2
  • Particle Flow Premium–Monthly$2.991 Month
  • Particle Flow Premium – Yearly3 Days trial$9.991 Year

Questions

Is Terra 3D free?
Terra 3D is free to download, with in-app purchases available.
Is Internal Waves free?
Internal Waves is free to download, with in-app purchases available.
Which has better reviews, Terra 3D or Internal Waves?
Terra 3D is rated higher. Terra 3D averages 4.0 out of 5 from 2 ratings, while Internal Waves averages 2.0 from 1 ratings.
Do Terra 3D or Internal Waves have ads?
Internal Waves shows ads; Terra 3D does not.
Which is updated more often, Terra 3D or Internal Waves?
Terra 3D ships an update every 3 weeks, and Internal Waves every 10 days. Most recently, Terra 3D was updated on November 1, 2026 and Internal Waves on November 5, 2026.

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