Comparison

Molding Guide vs 2 Second Lean Play

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Molding Guide

Access essential processing information for injection molders. This reference covers plastic material properties, processing guidelines, defect troubleshooting, and design considerations. It also includes calculations and conversion tables for optimal molding.

Highlights
  • Plastic material properties
  • Processing guidelines
  • Molded part defect troubleshooting
  • Part and mold design guidelines
  • Frequently used calculations
  • Common conversion tables
Features
Read full description

Get instant access to essential processing information with the Scientific Molding Pocket Guide — created by the plastics experts at Routsis Training. This convenient reference provides injection molders with detailed, up-to-date information about common plastic materials and their properties — including additives, preparation, and guidelines for optimal processing. Steps for establishing and maintaining a robust scientific injection molding process are also covered. The Pocket Guide includes critical information for identifying, troubleshooting, and solving molded part defects. As a convenient reference, the app also includes part and mold design guidelines, frequently used calculations, and common conversion tables.

About

2 Second Lean Play

Access a collection of audiobooks on Lean principles and personal development for free. Explore topics like business, waste reduction, health, travel, and finding meaning in life.

Highlights
  • Free audiobook access
  • Lean principles content
  • Personal development topics
  • Business and manufacturing focus
  • Health and lifestyle guidance
  • Travel and happiness insights
Features
Read full description

Paul Akers is an entrepreneur, business owner, author, speaker, and Lean maniac. He has written five books including his best selling book, 2 Second Lean. He travels the world educating and speaking about Lean principles & Lean manufacturing. Paul’s goal is for Lean to change the world and reach as many people as possible. Here you can access all of his audiobooks for free. In 2 Second Lean, Paul shows how Lean doesn’t have to be boring and all about charts and graphs. It can be fun! He shows his company’s journey and astounding results. In Banish Sloppiness, the followup book to 2 Second Lean, Paul shows how Lean is a lifelong journey to remove waste and become better stewards of given resources. In Lean Health, Paul using his life journey to show how you can go from treating your body like a Pinto to treating it like a Ferrari. In Lean Travel, Paul shows the importance of traveling light and with a grateful heart. In Lean Life, Paul provides the tools necessary for a life with deep meaning and happiness.

Screenshots

Molding Guide3 screens
2 Second Lean Play4 screens

Verdict

The call

The clearest difference is update cadence: 2 Second Lean Play at every 6 weeks against Molding Guide's every 27 months. 2 Second Lean Play also leads on ratings volume (21 vs 5). Molding Guide's advantage is iOS requirement (11.0 vs 15.1). On price, rating, review sentiment and ads 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Molding Guide against 5.0 for 2 Second Lean Play. Both are backed by a comparable volume of ratings — 5 and 21 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Molding Guide ships an update every 27 months, 2 Second Lean Play every 6 weeks. The most recent releases landed on August 3, 2026 and June 8, 2026 respectively.

Scorecard3 real differences · 7 level
Molding Guide versus 2 Second Lean Play: the parameters behind the verdict, then further details
ParameterMolding Guide2 Second Lean Play
PriceFreeFree
Rating5.0 (5 ratings)5.0 (21 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings521 — better
Update frequencyEvery 27 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS11.0 — better15.1
Further details — not scored
Size9 MB29 MB
Age rating4+4+
DeveloperA. Routsis Associates, Inc.Paul Akers

Customer experience

Molding Guide

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

2 Second Lean Play

All ratings21 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Molding Guide

No in-app purchases

None

2 Second Lean Play

No in-app purchases

Questions

Is Molding Guide free?
Molding Guide is free to download, with no in-app purchases.
Is 2 Second Lean Play free?
2 Second Lean Play is free to download, with no in-app purchases.
Which has better reviews, Molding Guide or 2 Second Lean Play?
Molding Guide and 2 Second Lean Play are both rated 5.0 out of 5 on the App Store, from 5 and 21 ratings respectively.
Do Molding Guide or 2 Second Lean Play have ads?
Neither Molding Guide nor 2 Second Lean Play shows ads.
Which is updated more often, Molding Guide or 2 Second Lean Play?
Molding Guide ships an update every 27 months, and 2 Second Lean Play every 6 weeks. Most recently, Molding Guide was updated on August 3, 2026 and 2 Second Lean Play on June 8, 2026.

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