# Water Physics Simulation vs Old School 3D

The clearest difference is rating: Old School 3D at 4.4 against Water Physics Simulation's 4.2. Water Physics Simulation's advantage is ratings volume (4.6K vs 1K) and iOS requirement (13.0 vs 15.0). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Water Physics Simulation sells 5 one-off in-app purchases and Old School 3D sells 1 in-app purchase, starting at $3.99 per year. Whichever you choose, the download price is not the number that matters.

Old School 3D holds the better App Store score, 4.4 against 4.2. Both are backed by a comparable volume of ratings — 4.6K and 1K respectively. Written reviews point the same way: 76% of Water Physics Simulation's written reviews are positive against 77% of Old School 3D's.

Water Physics Simulation ships an update every 2 months, Old School 3D every 6 weeks. The most recent releases landed on October 13, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Water Physics Simulation | Old School 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (4.6K ratings)](https://appshunter.io/ios/app/water-physics-simulation/id1562726050/reviews) | **[4.4 (1K ratings)](https://appshunter.io/ios/app/old-school-3d/id1673720627/reviews)** |
| Number of ratings | **4.6K** | 1K |
| Positive reviews | 75.7% of reviews | **77.1% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 60 MB | 413 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 12+ |
| Developer | [Lukas Oertel](https://appshunter.io/developer/1562391231) | [MDickie Limited](https://appshunter.io/developer/498978165) |

## What reviewers say

### Water Physics Simulation

[App page](https://appshunter.io/ios/app/water-physics-simulation/id1562726050)

Explore three distinct physics simulations: build and navigate ships, experiment with bomb explosions and water behavior in a sandbox, or observe the interactions of various elements. This free app offers creative building and destructive fun.

**Highlights:** Water and liquid simulations, Ship building and raft survival, Bomb explosions and destruction sandbox, Real-time sandbox with powder/dust particles, Build and control custom boats, Create and destroy structures

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $0.99 | one-time |
| Increase waterlimit by 10000 | $3.99 | one-time |
| Increase waterlimit by 20000 | $5.99 | one-time |
| Pro Package | $8.99 | one-time |
| Increase water by 50000 | $12.99 | one-time |

**What reviewers like**

- 👍 Amazing game
- 🚀 Great water physics
- 🚀 Realistic destruction
- 👍 Satisfying gameplay
- 👍 Relaxing experience

**What reviewers complain about**

- 🐛 Glitchy at times
- 💰 Paywall for premium features
- 🔍 Confusing UI/controls
- 📺 Too many ads

**Reported bugs**

- Ships not sinking properly
- Spawned objects floating upwards
- Connectivity issues causing crashes

**Requested features**

- Add more disaster tools (e.g., lava, fire, earthquakes)
- Increase water capacity for free users
- Implement realistic ship sinking mechanics
- Add more customization options (e.g., background, color schemes)
- Improve camera controls and zooming


### Old School 3D

[App page](https://appshunter.io/ios/app/old-school-3d/id1673720627)

Experience school life in a 3D environment with retro graphics. Attend classes, manage your behavior, and navigate social dynamics. Explore numerous locations and interact with objects, with the option to play as a student or a teacher.

**Highlights:** 3D school environment, Class attendance and learning, Behavior management, Popularity contests, Interactive props, Character customization, Teacher career mode

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Private Education | $3.99 | per year |

**What reviewers like**

- 🚀 Smooth gameplay
- 👍 Realistic interactions
- 🔥 Engaging school simulation
- 🌟 Impressive 3D graphics
- 🕹️ Fun and addictive

**What reviewers complain about**

- 🐛 Camera issues
- 🕰️ Time management problems
- 🤖 Erratic NPC behavior
- 💰 Excessive ads/paywall
- 🤯 Overwhelming dialogue

**Reported bugs**

- Inconsistent grading system
- Glitches when changing locations
- Character movement issues
- Unresponsive controls
- Audio problems

**Requested features**

- Add online multiplayer mode
- Expand customization options
- Introduce more career paths
- Improve camera controls
- Implement save/load progress


## Frequently asked questions

### Is Water Physics Simulation free?

Water Physics Simulation is free to download, with in-app purchases available.

### Is Old School 3D free?

Old School 3D is free to download, with in-app purchases available.

### Which has better reviews, Water Physics Simulation or Old School 3D?

Old School 3D is rated higher. Water Physics Simulation averages 4.2 out of 5 from 4.6K ratings, while Old School 3D averages 4.4 from 1K ratings.

### Do Water Physics Simulation or Old School 3D have ads?

Both Water Physics Simulation and Old School 3D show ads.

### Which is updated more often, Water Physics Simulation or Old School 3D?

Water Physics Simulation ships an update every 2 months, and Old School 3D every 6 weeks. Most recently, Water Physics Simulation was updated on October 13, 2026 and Old School 3D on October 17, 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.*