ENGEL e vs Smart Belt Drive
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ENGEL e
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.
- Calculate stroke volume
- Calculate clamping force
- Calculate cooling time
- Calculate screw speed
- Clear, structured results display
- Quick calculations
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The ENGEL | e-calc app is a comprehensive tool for every injection moulder. With this tool you can very easily calculate stroke volume, clamping force, cooling time and the screw speed. Instead of making tedious calculations you 'll quickly receive the desired results within just a few clicks. These are displayed clearly structured on one page.
Smart Belt Drive
This application provides a comprehensive diagnostic tool for belt drive systems. It measures key parameters like pulley speeds, belt frequency, tension, and system geometry to ensure optimal performance, energy efficiency, and extended service life.
- Pulley rotary speed measurement
- Belt frequency and tension measurement
- System geometry and misalignment measurement
- Comprehensive belt drive system check-up
- Performance and energy efficiency analysis
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The Smart Belt Drive application, developed by Hutchinson Belt Drive Systems, now replaces Easy tension. It now offers a complete toolbox for your belt drive systems. You will benefit from a complete diagnosis that will allow you to obtain optimal performance in terms of general behaviour, energy efficiency and an extended service life of your transmission system. This application includes: • Measuring the rotary speeds of your pulleys • Measuring the frequency and tension of your belt • Measuring the geometry and misalignment of your system • Analyzing all these data to carry out a complete check-up of your belt drive system
Screenshots
Verdict
The clearest difference is review sentiment: Smart Belt Drive at 67% against ENGEL e's 25%. Smart Belt Drive also leads on iOS requirement (13.4 vs 15.6). ENGEL e's advantage is update cadence (every 6 months vs every 18 months). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ENGEL e ships an update every 6 months, Smart Belt Drive every 18 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.
| Parameter | ENGEL e | Smart Belt Drive |
|---|---|---|
| Price | Free | Free |
| Rating | — | 2.8 (13 ratings) — better |
| Positive reviews | 25.0% of reviews | 66.7% of reviews — better |
| Number of ratings | — | 13 — better |
| Update frequency | Every 6 months — better | Every 18 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 13.4 — better |
| Further details — not scored | ||
| Size | 27 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | ENGEL AUSTRIA GmbH | HUTCHINSON |
Customer experience
ENGEL e
Smart Belt Drive
In-app purchases
ENGEL e
No in-app purchases
Smart Belt Drive
No in-app purchases
Questions
Is ENGEL e free?
Is Smart Belt Drive free?
Do ENGEL e or Smart Belt Drive have ads?
Which is updated more often, ENGEL e or Smart Belt Drive?
Other comparisons
