Terra 3D vs Internal Waves
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Terrain generation
- Day-night cycle
- Water simulation
- Sky simulation
- Focus effect
- Bloom and Glow effects
Read full descriptionHide 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
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.
- Interactive particle art creation
- Music-reactive visuals
- Augmented Reality (AR) mode
- Multi-touch drawing
- Customizable particle effects
- Mindfulness and relaxation focus
Read full descriptionHide 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
Verdict
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
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.
| Parameter | Terra 3D | Internal Waves |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (2 ratings) — better | 2.0 (1 ratings) |
| Positive reviews | 60.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 3 weeks | Every 10 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 15 MB | 133 MB |
| Age rating | 4+ | 4+ |
| Developer | Viacheslav Khakhulin | Riley McKinnon |
Customer experience
Terra 3D
Internal Waves
In-app purchases
Terra 3D
- Snow Mountains$0.99
- Ocean$0.99
- Desert$0.99
Show 3 moreShow fewer
- Red Mountains$0.99
- Mushroomland$0.99
- Premium$1.99
Internal Waves
- Particle Flow Premium–Monthly$2.991 Month
- Particle Flow Premium – Yearly3 Days trial$9.991 Year









