# IE Calculator vs Time & Motion Study

The clearest difference is rating: IE Calculator at 5.0 against Time & Motion Study's 4.4. IE Calculator also leads on iOS requirement (9.2 vs 15.0). Time & Motion Study's advantage is update cadence (every 2 weeks vs every 10 months) and ratings volume (51 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

IE Calculator holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Time & Motion Study has 51 ratings behind it against 1, so its average is the more settled of the two.

IE Calculator ships an update every 10 months, Time & Motion Study every 2 weeks. The most recent releases landed on September 25, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | IE Calculator | Time & Motion Study |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ie-calculator/id1455888355/reviews)** | [4.4 (51 ratings)](https://appshunter.io/ios/app/time-and-motion-study/id1534451221/reviews) |
| Number of ratings | 1 | **51** |
| Positive reviews | — | 76.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 16 MB | 2 MB |
| Requires iOS | **9.2** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gustavo Sousa](https://appshunter.io/developer/1079985358) | [Montage App, Inc.](https://appshunter.io/developer/1530864548) |

## What reviewers say

### IE Calculator

[App page](https://appshunter.io/ios/app/ie-calculator/id1455888355)

This app assists industrial engineers with manufacturing planning by providing tools for production capacity, takt time, and job efficiency calculations. It supports various demand frequencies and helps determine the time needed per unit.

**Highlights:** Production Capacity Calculation, Takt Time Calculation, Actual Jobs Per Hour (JPH), Hours Per Unit (HPU) Calculation, Support for various demand frequencies

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

**In-app purchases:** none


### Time & Motion Study

[App page](https://appshunter.io/ios/app/time-and-motion-study/id1534451221)

This app automates time and motion studies to optimize operational processes. It helps enhance working methods, boost efficiency, and reduce waste by analyzing task times and movements. Ideal for verifying cycle times and studying manual tasks in various industries.

**Highlights:** Automated time study tool, Optimize operational processes, Enhance working methods, Boost efficiency and reduce waste, Verify cycle times, Study manual tasks

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

**In-app purchases:** none


## Frequently asked questions

### Is IE Calculator free?

IE Calculator is free to download, with no in-app purchases.

### Is Time & Motion Study free?

Time & Motion Study is free to download, with no in-app purchases.

### Which has better reviews, IE Calculator or Time & Motion Study?

IE Calculator is rated higher. IE Calculator averages 5.0 out of 5 from 1 ratings, while Time & Motion Study averages 4.4 from 51 ratings.

### Do IE Calculator or Time & Motion Study have ads?

Neither IE Calculator nor Time & Motion Study shows ads.

### Which is updated more often, IE Calculator or Time & Motion Study?

IE Calculator ships an update every 10 months, and Time & Motion Study every 2 weeks. Most recently, IE Calculator was updated on September 25, 2026 and Time & Motion Study on September 23, 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.*