Martoni Cardio Speeder — The seatless, full-body workout machine

A re-imagined body-bike interface designed for power, grace, and zero saddle pain.
Most fitness tech focuses on digital screens. We focused on the human frame. Traditional bikes force weight onto the pelvis and compress the spine. After 30 years of prototyping, we ve launched the Cardio Speeder a machine that turns a "ride" into a "flight."
Why it s different:
Orbital Mechanics: Upper body bars turn cardio into a true full-body HIIT session.
Ergonomic Breakthrough: Eliminates the "hunched" posture of traditional trainers.
Micro-Mobility Future: This is the first step in a new ecosystem of Martoni motion products.
We re live on Kickstarter today and would love the support of the PH community!
Looking for feedback on a small Android app I built to test reflexes and focus.
Hey
I ve built a small Android app called Daily Reflex that focuses on short reflex, memory, and reaction challenges (2 5 min sessions).
I m looking for honest feedback on:
UX / clarity
Difficulty
Overall feel (boring vs engaging)
Google Play link:
https://play.google.com/store/ap...
Need help on my ai fortune teller app
I made an AI periodic table that traces AI tools to its foundations
While diving deep into AI system architecture, I came across an insightful video that sparked a fascinating idea, what if we could visualize AI components like a periodic table?
This led me to design an interactive HTML version of an AI Periodic Table that helps decompose and understand the core elements powering today's most popular AI products and services!
The AI Periodic Table breaks down modern AI systems into organized categories:
Primitives: Prompts, Embeddings, LLMs
Compositions: Function Calling, Vector Search, RAG, Guardrails, Multimodal
Deployment: Agents, Fine-tuning, Frameworks, Red-teaming, Small Models
Emerging: Multi-agent systems, Synthetic data, Interpretability, AI Thinking
This interactive guide allows you to explore how different AI elements combine to create the intelligent products we use daily. Click on any element to learn its purpose or explore specific AI products to see which components power them.
Check it out here:
Interactive AI Periodic Table
I'd love to hear your thoughts! How do you approach understanding complex AI systems? What other elements would you add to this framework? Let's discuss in the comments!
I built a Snowboard Selector to debug my own "Dad Bod" gear anxiety.
Hi Product Hunt!
I m Michael, a dev from Israel and a father of two. Last month, I stood in a gear shop feeling completely lost. My "aerodynamics" (aka my weight) had changed since the pandemic, and my old specs no longer applied.
I realized that even with Google and YouTube, matching boot size to waist width and weight to flex for 50+ boards in 30 seconds is a nightmare. So, I decided to "debug" the process and built:
https://snowboard-selector.goodm...
I’m developing an app for a calmer life. I need advice.
Hi everyone. I ve posted in a few places online with questions about success and people s pasts. Most people faced tragic or crisis situations when they were younger things that were very difficult to overcome. Many of us have experienced seeing others achieve things faster than us or be more successful than us, and how deeply that can hurt, sometimes even destroy us.
To address this problem, I ve developed an MVP of an app, though it s still a work in progress.
Link: https://play.google.com/store/ap...
I d really appreciate your advice:
We noticed a weird gap between “Book a demo” and Actual Revenue
A lot of SaaS teams do everything right.
Good traffic.
Clear value prop.
Strong Book a demo CTA.
And still people drop off before ever seeing the product.
That gap between click real product experience kept coming up in our own work, so we started building MeetRep, a way for prospects to see and interact with the product instantly, without waiting for a calendar slot.
Built a small tool to turn PMF survey data into next‑step priorities
I ended up building a small tool for myself that takes PMF survey answers plus basic customer data, shows which segments care the most, and suggests a short list of priorities for the next 90 days (who to focus on and what to fix first).
I ve just opened a waitlist and would love early feedback from founders wrestling with PMF: you can join here and try the free GTM planning canvas: https://pmfhunter.com.
I am building the future of investing and already launched
I didn t build investpilot.ai to beat the market or push signals. I built it because most people don t lose money due to lack of access they lose money due to lack of structure and understanding.
it is about helping you think clearly about investing:
how risk actually works
how time horizon changes decisions
how portfolios behave in bad decades, not just good ones
No hype. No promises. No buy this now alerts.
I use it myself to stress-test ideas, understand downside scenarios, and avoid emotional decisions. Especially when markets are volatile or headlines are loud.
I’m building Seazonify — a free library of seasonal audio-visual effects for websites

What I m building:
Seazonify is a weather-aware effects platform that lets developers and creators dynamically add season-based visuals and sounds (rain, snow, storms, sunny vibes) to their apps, websites, games, and experiences.