# Chain & Sprocket Calculator vs Sensor Multitool

The clearest difference is price: Sensor Multitool at Free against Chain & Sprocket Calculator's $1.99. Chain & Sprocket Calculator's advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Sensor Multitool is free to download; Chain & Sprocket Calculator costs $1.99 up front. Sensor Multitool sells 3 one-off in-app purchases. Chain & Sprocket Calculator asks for nothing beyond the download.

## The numbers

| Metric | Chain & Sprocket Calculator | Sensor Multitool |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sensor-multitool/id6762100818/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 3 MB | 5 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Vladislav Zhirnov](https://appshunter.io/developer/1476188065) | [Andrew Meyers](https://appshunter.io/developer/1879595732) |

## What reviewers say

### Chain & Sprocket Calculator

[App page](https://appshunter.io/ios/app/chain-and-sprocket-calculator/id6757619008)

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

**In-app purchases:** none


### Sensor Multitool

[App page](https://appshunter.io/ios/app/sensor-multitool/id6762100818)

Access real-time data from your device's built-in sensors, including accelerometer, gyroscope, magnetometer, altimeter, and compass. Choose from three sensitivity modes for raw, balanced, or smoothed data output. Ideal for makers, engineers, and hobbyists.

**Highlights:** Live sensor data dashboard, Accelerometer, Gyroscope, Magnetometer, Altimeter, Compass, Three sensitivity modes (Raw, Balanced, Smooth), On-device data processing, Real-time motion, rotation, and magnetic field readings, Altitude and pressure measurements

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Donation | $0.99 | one-time |
| Medium Donation | $2.99 | one-time |
| Large Donation | $4.99 | one-time |


## Frequently asked questions

### Is Chain & Sprocket Calculator free?

Chain & Sprocket Calculator costs $1.99, with no in-app purchases.

### Is Sensor Multitool free?

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

### Do Chain & Sprocket Calculator or Sensor Multitool have ads?

Sensor Multitool shows ads; Chain & Sprocket Calculator does not.

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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.*