S.O.P.G. vs Extrusion Guide
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
S.O.P.G.
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A pocket guide that is specific to electrical grid system operators that has common calculators, rules of thumb, quizzes for NERC exams and feedback.
Extrusion Guide
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Plastics is a sophisticated and diverse discipline. To excel, you need a good grasp of a wide range of concepts and data. The purpose of this guide is to provide extrusion operators with information that can help them to process, document, and troubleshoot more effectively.
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Verdict
The clearest difference is iOS requirement: Extrusion Guide at 12.0 against S.O.P.G.'s 18.0. On price, ads, in-app purchases and device support 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.
| Parameter | S.O.P.G. | Extrusion Guide |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Chris Lucas | A. Routsis Associates, Inc. |
In-app purchases
S.O.P.G.
No in-app purchases
Extrusion Guide
No in-app purchases
Questions
Is S.O.P.G. free?
Is Extrusion Guide free?
Do S.O.P.G. or Extrusion Guide have ads?
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