# Pulley Calculator vs Feed Sensor Manager

The clearest difference is price: Feed Sensor Manager at Free against Pulley Calculator's $2.99. Feed Sensor Manager also leads on iOS requirement (11.0 vs 13). On ads, in-app purchases and device support there is nothing between them.

Feed Sensor Manager is free to download; Pulley Calculator costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Pulley Calculator | Feed Sensor Manager |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[3.7 (34 ratings)](https://appshunter.io/ios/app/pulley-calculator/id1388205210/reviews)** | — |
| Number of ratings | **34** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 46 months | — |
| Monetization | Paid | — |
| Size | 1 MB | 34 MB |
| Requires iOS | 13 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [Technocon Engineering Ltd.](https://appshunter.io/developer/1458474037) |

## What reviewers say

### Pulley Calculator

[App page](https://appshunter.io/ios/app/pulley-calculator/id1388205210)

This engineering calculator helps determine belt length, ratio, RPM, and belt speed for pulley systems. It offers instant calculations with copyable results and includes formulas for reference.

**Highlights:** Calculate Belt Length, Calculate Ratio, Calculate RPM, Calculate Belt Speed, Instant calculations, Copyable results, Includes formulas

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

**In-app purchases:** none


### Feed Sensor Manager

[App page](https://appshunter.io/ios/app/feed-sensor-manager/id6464403375)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pulley Calculator free?

Pulley Calculator costs $2.99, with no in-app purchases.

### Is Feed Sensor Manager free?

Feed Sensor Manager is free to download, with no in-app purchases.

### Do Pulley Calculator or Feed Sensor Manager have ads?

Neither Pulley Calculator nor Feed Sensor Manager shows ads.

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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.*