Matthew L.

Polym: Remember What You Learn | Product Hunt Polym is an audio app incorporating active learning for the retention of foundational knowledge, including statistics, logic, economics, AI, history, and more. The app utilizes retrieval practice, spa...

Today Polym launches on Product Hunt.

A culmination of 15 years of exploring every major online learning solution & extensive research into learning science to create a platform that tries to incorporate the best from each while filling in their gaps.

❤️ Support: www.producthunt.com/products/polym

Any mobile app developers use different paywalls for iOS and Android? Seems they have different requirements and would rather not change my copy on iOS to meet Android.

Retain what you learn.

4 Research-Backed Learning Strategies for Improving Retention & Recall In recent decades, research has significantly advanced our understanding of how people learn most effectively. Yet in practice, our…

4 Research-Backed Learning Strategies for Improving Retention & Recall: medium.com/@matt.lucich...

Gathering raw data vs interpreting raw data.

Agreed 🫡

There’s a lot of techniques to improve knowledge retention, though I find these 4 are the most practical to continuously implement

Underrated framework for viewing relationships

Potential biases to look out for in causal inference

A refresher on one of my favorites: Simpson’s Paradox

Why Conjoint Analysis Matters

It doesn’t just tell you what customers like—it reveals how much they value each feature.

Used in:
✔️ Airlines: Legroom vs. Ticket Price vs. Wi-Fi
✔️ Smartphones: Camera Quality vs. Battery Life vs. Price
✔️ Streaming Services: Ad-free vs. More Content vs. Lower Cost

Step 5: Optimize Product Offerings

With these insights, businesses can refine products, pricing, and marketing based on what actually drives customer choices.

Example: A phone brand can decide whether to focus on battery life or camera quality.

Step 4: Use Statistical Models

Advanced models (like Hierarchical Bayesian or Logit models) analyze responses to determine:
✅ The relative importance of each feature
✅ How much customers are willing to pay for each attribute

Step 3: Collect Responses

Surveys gather data from a representative sample. Instead of ranking preferences, consumers make real-world trade-offs—revealing what matters most.

Step 2: Design Choice Scenarios

Customers see different product combinations & must pick their preferred option.

Example: A travel company may ask:
✈️ Option A: $200 ticket, extra legroom, no Wi-Fi
✈️ Option B: $180 ticket, standard legroom, free Wi-Fi

Step 1: Define Attributes & Levels

• Attributes = Product features (e.g., price, battery life, screen size).
• Levels = Variations of each attribute (e.g., price: $599, $799, $999).

These define what customers will compare.

Conjoint analysis is a powerful technique that measures consumer preferences by simulating real-world decision-making. Instead of asking what customers want, it presents trade-offs between product features.

Here’s how it works 👇

The evolution of marketing in 5 stages:
1️⃣ Production Concept: Efficiency is king.
2️⃣ Product Concept: Quality above all.
3️⃣ Sales Concept: Persuasion dominates.
4️⃣ Marketing Concept: Customer-first focus.
5️⃣ Societal Marketing: Responsibility meets strategy.

Interleaving Practice - Humans vs. AI: Seeing Patterns That Aren’t There

Honing my infographic skills at the moment

FYI I get this even though I granted location access while using the app. I initially gave less access (once, not precise) but fixed it and still see this after relaunching

That blog post is great, appreciate it!

Just started using PostHog (@posthog.com) for my mobile app. Anyone recommend particular insights/views to monitor?

Late to this one but just finishing Made to Stick. Great read for indie hackers on the marketing front.

5 Ways Entrepreneurs Identify Opportunities (Schumpeter’s framework):
• Develop a new market for an existing product.
• Find a cheaper supply of resources.
• Use existing tech to improve an old product.
• Use existing tech to create a new product.
• Use new tech to create a new product.

Found the boilerplate for my react native app essential. Made integrations with payments, push notifications, analytics an afterthought. I don’t see cursor understanding how to best place/implement those in a complex app.

YouTube video by Polym Introduction - Polym: An audio app for retention

Just launched my first mobile app, an audio app focused on knowledge retention and recall. Check it out!
youtu.be/F6t_0i7vNyk?...

Anyone else recently launch an iOS app and is interested in being mutual beta testers? We can review each other's apps.

Think about this quite often

The 4 characteristics of goods vs. services: Tangibility, perishability, separability, and standardization. Understanding these helps craft better customer solutions.