MVPBuilder.io
WIP.co
Makerlog
Linear
MVP-Challenge
React Server
Most side projects don't fail because the developer isn't good enough. They fail because there's no structure, no real deadline, and nobody watching when you skip Day 4.
MVP Builder is a structured 13, 21 or 30-day sprint for developers with a full-time job whose side project is stuck. Not a course. Not a tool. Every evening you get one prompt for the next day, calibrated to your own project context — and at each milestone a human reads what you actually delivered before the sprint continues.
How it works: it starts with a five-question quiz and ends in a free 30-minute call, not a signup form. The call settles which module fits (Bronze 13 days, Silver 21, Gold 30) and what your sprint goal is. That goal is written down before day one and frozen — you are measured against the wording from that day, not against what it became.
Milestone days are mandatory: Bronze on day 13, Silver on 13 and 21, Gold on 13, 21 and 30. On those days you attach a URL or a file — a screenshot showing recognizable progress, a live demo, a repository with real commits, or a short walkthrough video. Text alone is not enough, and an empty repo or a wireframe without working code doesn't count. The ordinary days in between are not mandatory. The milestones are.
Miss one and the sprint pauses rather than quietly continuing. There is a fixed grace period; if it lapses, the sprint is suspended and the only way back is a request we decide on.
What it costs in time: three to five hours a week, spread across several days rather than taken in one block. Below three hours a week is a reason we say no.
The first 7 days cost nothing. You leave a card at checkout and nothing is charged before day 8, so the week that decides it is behind you before any money moves.
Acceptance is manual and happens in that call, not in a form. Vague scope gets turned down there.
Start with the quiz: https://mvpbuilder.io/go?utm_source=saashub&utm_medium=directory&utm_campaign=cohort2
MVPBuilder.ioMVPBuilder.io's answer
Next.js, Supabase, Vercel
MVPBuilder.io's answer
AI will give you a plan in ten minutes and will not notice when you skip Day 4. What is missing is not another plan, it is a checkpoint someone else reads. The daily prompt is calibrated to your own project context rather than generic advice, and the decision to take you on is made in a call, not by a form — vague scope gets turned down there, because a sprint that starts wrong produces nothing worth showing.
MVPBuilder.io's answer
Developers with a full-time job and a side project that has been almost done for months. Not beginners, not people looking for someone to build it for them. The requirement is that you own the implementation and can put three to five hours a week into it, spread across several days rather than in one block.
MVPBuilder.io's answer
MVPBuilder.io's answer
The milestone is enforced, not tracked. On day 13, 21 or 30 you attach a URL or a file, and a person reads it against a goal that was written down before day one and frozen. No proof, no continuation: the sprint pauses. Everyday check-ins stay voluntary on purpose — the point is not attendance, it is that something exists at the checkpoint.
MVPBuilder.io's answer
I built the enforcement first and then ran it on myself: a 21-day sprint as a participant, with the goal written down and frozen before day one. I missed one of my four criteria and published that alongside the three I met. The product exists because I did not trust my own account of my progress, and there was no reason anyone else should either.
WIP.co - Work in progress. We are a community of makers who help each other ship product.
Makerlog - Makerlog is the dead-simple task log that helps you stay productive and ship faster.
Linear - Streamlined issue tracking for software teams
MVP-Challenge - 2 weeks. 1 MVP startup. $0 costs