# ENGEL e vs PolyTakt

The clearest difference is in-app purchases: ENGEL e at none against PolyTakt's 2. ENGEL e also leads on iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. PolyTakt sells 2 in-app purchases, starting at $7.99 per month. ENGEL e asks for nothing beyond the download.

## The numbers

| Metric | ENGEL e | PolyTakt |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Monetization | Free | — |
| Size | 29 MB | 40 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [ENGEL AUSTRIA GmbH](https://appshunter.io/developer/687631542) | [PolyTakt Limited](https://appshunter.io/developer/6788801107) |

## What reviewers say

### ENGEL e

[App page](https://appshunter.io/ios/app/engel-e-calc/id687631539)

This tool simplifies complex calculations for injection molders, including stroke volume, clamping force, cooling time, and screw speed. Get accurate results quickly and clearly displayed on a single page, eliminating the need for tedious manual computations.

**Highlights:** Calculate stroke volume, Determine clamping force, Estimate cooling time, Calculate screw speed, Clear, structured results display, Quick calculations

**Features:** macOS Compatibility

**In-app purchases:** none


### PolyTakt

[App page](https://appshunter.io/ios/app/polytakt/id6788801105)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PolyTakt Pro | $7.99 | per month |
| PolyTakt Pro | $69.00 | per year |


## Frequently asked questions

### Is ENGEL e free?

ENGEL e is free to download, with no in-app purchases.

### Is PolyTakt free?

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

### Do ENGEL e or PolyTakt have ads?

Neither ENGEL e nor PolyTakt 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.*