Comparison

Interplay Learning vs SkillMill Project

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

Head to head
About

Interplay Learning

This platform offers subscription-based training for skilled trades, creating job-ready workers and upskilling existing ones. Access hundreds of hours of expert-led content in HVAC, plumbing, electrical, and more, with on-demand assessments to track progress.

Highlights
  • Expert-led training content
  • On-demand assessments
  • Certification exam prep
  • Bite-sized training videos
  • Progress tracking
  • Anytime, anywhere access
Features
Read full description

Interplay Learning’s career development platform (formerly SkillMill) is a subscription-based solution that delivers always-on training, creating job-ready skilled trades workers and upskilling tenured workers faster and easier than ever before. Access hundreds of hours of expert-led training content in HVAC, Solar, Plumbing, Electric and Facilities Maintenance (and more). Plus, utilize on-demand assessments and knowledge checks to gauge team skills and identify key areas for improvement. With Interplay, you can: Expand knowledge and skills through training that can be accessed anytime, anywhere Learn directly from industry experts who understand what top technicians need to know Prep for EPA 608 and NATE certification exams or retain certification with approved CEU hours Master industry relevant skills quicker and more efficiently So that you’ll be able to: Take the next step in your trades career Develop skills and credentials Retain critical knowledge necessary to do your job safely and correctly With the Interplay Mobile App You Get: Bite-sized training videos for on-the-go learning On-demand quizzes and assessments to test your knowledge and find gaps The ability to pick up where you left off Just-in-time information when you need it the most Optimize your experience on a tablet, laptop or desktop Popular Courses Include: HVAC: Heat Pump Troubleshooting, Introduction to Rooftop Units, AC System Tools, Trades Math Electrical: How to Use a Multimeter, Fundamental Electrical Concepts, Introduction to Fire Alarms, Electrically Safe to Work Procedures Plumbing: Copper Pipe Joining Methods Lab, Principles of Backflow, Drain Cleaning Intro and Equipment Types Appliances:Garbage Disposal Troubleshooting, Refrigerator Troubleshooting, Ranges Overview Safety: Lockout/Tagout, Bloodborne Pathogens, Ladder and Fall Safety, Distracted Driving Solar: Solar Module Design, Mechanical Commissioning, Reading Schematics and Drawings Get to Know Us: https://www.interplaylearning.com

About

SkillMill Project

Features
Read full description

We want to help people to identify, explore, and verbalize their soft skills development. SkillMill allows you to: - Journal life experiences in a creative way - Explore your journal entries through the lens of different skill profiles - Match your experiences to leading skill frameworks, e.g., from World Economic Forum, EU, and OECD. - Learn to talk about your skills and insights - to yourself, so you can recognize your personal growth - to employers, so they can see how amazing you are SkillMill is a Strategic Partnership project co-funded by Erasmus+ and brought to you by Uppsala University (Sweden), University of Helsinki (Finland), University of Tartu (Estonia), and University of Stavanger (Norway). Read more here: https://uuglobal.shorthandstories.com/skillmill/index.html The European Commission's support for the production of this publication does not constitute an endorsement of the contents, which reflect the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

Screenshots

Interplay Learning4 screens
SkillMill Project4 screens

Verdict

The call

The clearest difference is in-app purchases: SkillMill Project at none against Interplay Learning's 1. On price, update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Interplay Learning sells 1 in-app purchase, starting at $54.00 per month. SkillMill Project asks for nothing beyond the download.

UpkeepUpdate frequency

Interplay Learning ships an update every 2 months, SkillMill Project monthly. The most recent releases landed on September 9, 2026 and September 19, 2026 respectively.

Scorecard1 real difference · 9 level
Interplay Learning versus SkillMill Project: the parameters behind the verdict, then further details
ParameterInterplay LearningSkillMill Project
PriceFreeFree
Rating3.9 (48 ratings) — better—
Positive reviews26.7% of reviews—
Number of ratings48 — better—
Update frequencyEvery 2 monthsMonthly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscription—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size135 MB45 MB
Age rating4+4+
DeveloperInterplay Learning Inc.Uppsala University

In-app purchases

1 purchases

Interplay Learning

Subscriptions1
  • Individual Monthly14 Days trial$54.001 Month
None

SkillMill Project

No in-app purchases

Questions

Is Interplay Learning free?
Interplay Learning is free to download, with in-app purchases available.
Is SkillMill Project free?
SkillMill Project is free to download, with no in-app purchases.
Do Interplay Learning or SkillMill Project have ads?
Neither Interplay Learning nor SkillMill Project shows ads.
Which is updated more often, Interplay Learning or SkillMill Project?
Interplay Learning ships an update every 2 months, and SkillMill Project monthly. Most recently, Interplay Learning was updated on September 9, 2026 and SkillMill Project on September 19, 2026.

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