# Physics Toolbox Accelerometer vs Ocean 4D+

The clearest difference is review sentiment: Ocean 4D+ at 100% against Physics Toolbox Accelerometer's 38%. Ocean 4D+ also leads on update cadence (every 2 months vs every 8 months) and iOS requirement (11.0 vs 16.0). Physics Toolbox Accelerometer's advantage is rating (2.0 vs 1.0) and in-app purchases (none vs 1). On price, ads and device support there is nothing between them.

Both are free to download. Ocean 4D+ sells 1 one-off in-app purchase. Physics Toolbox Accelerometer asks for nothing beyond the download.

Physics Toolbox Accelerometer holds the better App Store score, 2.0 against 1.0. That said, the two scores are not equally well evidenced: Physics Toolbox Accelerometer has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 38% of Physics Toolbox Accelerometer's written reviews are positive against 100% of Ocean 4D+'s, so the app with the better star average is not the one people write more warmly about.

Physics Toolbox Accelerometer ships an update every 8 months, Ocean 4D+ every 2 months. The most recent releases landed on September 7, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Physics Toolbox Accelerometer | Ocean 4D+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (5 ratings)](https://appshunter.io/ios/app/physics-toolbox-accelerometer/id1008160133/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/ocean-4d-plus/id1484774384/reviews) |
| Number of ratings | **5** | 1 |
| Positive reviews | 38.5% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 15 MB | 251 MB |
| Requires iOS | 16.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Chrystian Vieyra](https://appshunter.io/developer/998187453) | [Octagon Studio Ltd](https://appshunter.io/developer/998405180) |

## What reviewers say

### Physics Toolbox Accelerometer

[App page](https://appshunter.io/ios/app/physics-toolbox-accelerometer/id1008160133)

This app uses your device's accelerometer to measure and graph G-Force and acceleration over time. It allows you to record and export data as a CSV file, making it useful for analyzing motion in vehicles, vibrations, and educational physics experiments.

**Highlights:** Measures G-Force and acceleration, Graphs G-Force vs. Time, Graphs Acceleration vs. Time, Records and exports data as CSV, Analyzes motion in vehicles and vibrations, Useful for classroom physics experiments

**Features:** macOS Compatibility

**In-app purchases:** none


### Ocean 4D+

[App page](https://appshunter.io/ios/app/ocean-4d-plus/id1484774384)

Explore a vibrant underwater world with augmented reality. Bring marine creatures to life in your environment, interact with them, and learn fascinating facts about their habitats and conservation status.

**Highlights:** Cardless Augmented Reality, Interactive 3D marine creatures, Realistic animations, Digital Encyclopedia of marine animals, Conservation status information, Habitat and diet details

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Marine Animals | $2.99 | one-time |


## Frequently asked questions

### Is Physics Toolbox Accelerometer free?

Physics Toolbox Accelerometer is free to download, with no in-app purchases.

### Is Ocean 4D+ free?

Ocean 4D+ is free to download, with in-app purchases available.

### Which has better reviews, Physics Toolbox Accelerometer or Ocean 4D+?

Physics Toolbox Accelerometer is rated higher. Physics Toolbox Accelerometer averages 2.0 out of 5 from 5 ratings, while Ocean 4D+ averages 1.0 from 1 ratings.

### Do Physics Toolbox Accelerometer or Ocean 4D+ have ads?

Neither Physics Toolbox Accelerometer nor Ocean 4D+ shows ads.

### Which is updated more often, Physics Toolbox Accelerometer or Ocean 4D+?

Physics Toolbox Accelerometer ships an update every 8 months, and Ocean 4D+ every 2 months. Most recently, Physics Toolbox Accelerometer was updated on September 7, 2026 and Ocean 4D+ on September 9, 2026.

---

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