# Terra 3D vs Internal Waves

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.

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.

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.

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.

## The numbers

| Metric | Terra 3D | Internal Waves |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/terra-3d-worlds-generator/id816216281/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/internal-waves-particle-flow/id6748045391/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | **60.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 15 MB | 133 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Viacheslav Khakhulin](https://appshunter.io/developer/558806761) | [Riley McKinnon](https://appshunter.io/developer/1824077312) |

## What reviewers say

### Terra 3D

[App page](https://appshunter.io/ios/app/terra-3d-worlds-generator/id816216281)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Snow Mountains | $0.99 | one-time |
| Ocean | $0.99 | one-time |
| Desert | $0.99 | one-time |
| Red Mountains | $0.99 | one-time |
| Mushroomland | $0.99 | one-time |
| Premium | $1.99 | one-time |


### Internal Waves

[App page](https://appshunter.io/ios/app/internal-waves-particle-flow/id6748045391)

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:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Particle Flow Premium–Monthly | $2.99 | per month |
| Particle Flow Premium – Yearly | $9.99 | per year |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*