ENGEL e vs PolyTakt
Price, ratings, monetisation and update history for both apps, side by side ā 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
- Determine clamping force
- Estimate 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.
PolyTakt
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PolyTakt is the shop-floor companion for injection molders, setting technicians, and process engineers. It is built for injection molding: scientific molding studies, process calculators, and references you can use at the press. Core calculators, converters, and lookups run offline. No account is required for the toolbox. Metric and imperial units are both supported. FREE TOOLS ⢠Shot size ā volume and weight from melt density ⢠Clamp force ā tonnage from projected area and material ⢠Cooling time ā from part thickness ⢠Drying ā dryer load and residence time ⢠Gate shear ā gate size and fill time against shear limits ⢠Water flow ā turbulent cooling in mold circuits ⢠Residence time and barrel utilization ⢠Melt density, shrinkage, pressure ratio, and production rate ⢠Process transfer ā move a setup from one machine to another ⢠Material lookup ā melt temperature, mold temperature, and drying data ⢠Troubleshooting ā common visual defects and what to check next ⢠Purge and changeovers ⢠Vent assessment, platen clamp reference, and screw and barrel wear ⢠Converters ā pressure, temperature, length, weight, screw speed, flow, torque, and density SCIENTIFIC MOLDING A structured workflow for a process you can repeat, not a setpoint that only looked acceptable on one shift. Free users can view the workflow in demo mode. PolyTakt Pro is where you run and save your own studies: ⢠Process setup ⢠Back pressure, screw speed, decompression, and feed throat ⢠Viscosity curve (in-mold rheology) ⢠Cavity balance ⢠Pressure drop ⢠Hold pressure ⢠Gate seal (gate freeze) ⢠Clamp force and cooling time ⢠Operating window (design of experiments) ⢠Process stability verification POLYTAKT PRO Individual Pro adds cloud sync, custom materials, process condition sheets, and the scientific study suite on your phone. Subscriptions are billed by the App Store. Machines, molds, and saved setup data stay with your account, so the next shift is not starting from memory. Understand the process, then make it hold. Download PolyTakt. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://polytakt.app/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: ENGEL e at none against PolyTakt's 2. ENGEL e also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.4). PolyTakt's advantage is update cadence (every 2 weeks vs every 4 months). On price and ads there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
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.
ENGEL e ships an update every 4 months, PolyTakt every 2 weeks. The most recent releases landed on October 9, 2026 and October 17, 2026 respectively.
| Parameter | ENGEL e | PolyTakt |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | ā |
| Update frequency | Every 4 months | Every 2 weeks ā better |
| Ads | No | No |
| In-app purchases | No ā better | Yes |
| Monetization | Free | ā |
| Devices | iPhone, iPad, iPod ā better | iPhone |
| Requires iOS | 13.0 ā better | 16.4 |
| Further details ā not scored | ||
| Size | 29 MB | 56 MB |
| Age rating | 4+ | 17+ |
| Developer | ENGEL AUSTRIA GmbH | PolyTakt Limited |
In-app purchases
ENGEL e
No in-app purchases
PolyTakt
- PolyTakt Pro$7.991 Month
- PolyTakt Pro$69.001 Year








