# 3DPhyS vs Eyedo

The clearest difference is rating: Eyedo at 5.0 against 3DPhyS's 2.9. Eyedo also leads on ads (none vs shown) and update cadence (every 2 days vs fortnightly). 3DPhyS's advantage is in-app purchases (none vs 3) and ratings volume (7 vs 1). On price and device support there is nothing between them.

Both are free to download. Eyedo sells 3 in-app purchases, starting at $4.99 per month. 3DPhyS asks for nothing beyond the download.

Eyedo holds the better App Store score, 5.0 against 2.9. That said, the two scores are not equally well evidenced: 3DPhyS has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 88% of 3DPhyS's written reviews are positive against 100% of Eyedo's.

3DPhyS ships an update fortnightly, Eyedo every 2 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 3DPhyS | Eyedo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.9 (7 ratings)](https://appshunter.io/ios/app/3dphys-physics-simulator/id6470351815/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/eyedo-magic-doodle-pets/id6812122038/reviews)** |
| Number of ratings | **7** | 1 |
| Positive reviews | 87.5% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | **Ad-supported** | Freemium |
| Size | 176 MB | 72 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Sota Takasugi](https://appshunter.io/developer/1713502017) | [上海画曈科技有限公司](https://appshunter.io/developer/6810035533) |

## What reviewers say

### 3DPhyS

[App page](https://appshunter.io/ios/app/3dphys-physics-simulator/id6470351815)

Explore fundamental physics concepts through interactive simulations. Adjust parameters like initial velocity and bounce coefficient to understand phenomena like free fall, projectile motion, and circular motion. This app supports learning in multiple languages.

**Highlights:** Interactive physics simulations, Adjustable experiment parameters, Multiple physics experiment modules, Multilingual interface, Free to download and use

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Eyedo

[App page](https://appshunter.io/ios/app/eyedo-magic-doodle-pets/id6812122038)

Bring your hand-drawn doodles to life as 3D pets! Draw, color, and watch your creations inflate into interactive companions. Explore fantasy worlds, nurture your pets, and customize their looks with this creative adventure app.

**Highlights:** Draw and color custom 2D pets, 3D inflation technology for living companions, Explore fantasy adventure stages, Nurture, style, and bond with pets, Dual-layer creative studio with various brushes, Unlock outfits and accessories

**Features:** macOS Compatibility, Vision Pro support, iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $4.99 | per month |
| Pro Quarterly | $9.99 | per 3 months |
| Pro Annual | $24.99 | per year |


## Frequently asked questions

### Is 3DPhyS free?

3DPhyS is free to download, with no in-app purchases.

### Is Eyedo free?

Eyedo is free to download, with in-app purchases available.

### Which has better reviews, 3DPhyS or Eyedo?

Eyedo is rated higher. 3DPhyS averages 2.9 out of 5 from 7 ratings, while Eyedo averages 5.0 from 1 ratings.

### Do 3DPhyS or Eyedo have ads?

3DPhyS shows ads; Eyedo does not.

### Which is updated more often, 3DPhyS or Eyedo?

3DPhyS ships an update fortnightly, and Eyedo every 2 days. Most recently, 3DPhyS was updated on November 3, 2026 and Eyedo on October 31, 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.*