# Physics Toolbox Accelerometer vs Shared Waters

The clearest difference is update cadence: Shared Waters at every 3 weeks against Physics Toolbox Accelerometer's every 8 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Physics Toolbox Accelerometer ships an update every 8 months, Shared Waters every 3 weeks. The most recent releases landed on September 7, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Physics Toolbox Accelerometer | Shared Waters |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (5 ratings)](https://appshunter.io/ios/app/physics-toolbox-accelerometer/id1008160133/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 38.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 15 MB | 459 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Chrystian Vieyra](https://appshunter.io/developer/998187453) | [Stroud Water Research Center](https://appshunter.io/developer/1200990268) |

## 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


### Shared Waters

[App page](https://appshunter.io/ios/app/shared-waters/id6759122772)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Physics Toolbox Accelerometer free?

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

### Is Shared Waters free?

Shared Waters is free to download, with no in-app purchases.

### Do Physics Toolbox Accelerometer or Shared Waters have ads?

Neither Physics Toolbox Accelerometer nor Shared Waters shows ads.

### Which is updated more often, Physics Toolbox Accelerometer or Shared Waters?

Physics Toolbox Accelerometer ships an update every 8 months, and Shared Waters every 3 weeks. Most recently, Physics Toolbox Accelerometer was updated on September 7, 2026 and Shared Waters on September 19, 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.*