Startup idea: On-Demand Body Doubling to Start a Task
Once started, people can work for hours, but they can't make themselves take the first step. The problem is starting, not doing.
Get the PRD prompt, $9.99 Market: $1.2M in 3 years
r/getdisciplined · Sep 14, 2026 – Oct 14, 2026 · 36 upvotes
I can work for hours once I start, but I can't make…
Read the thread · 44 comments
On-Demand Body Doubling to Start a Task is a startup idea for people with ADHD, remote workers, and students. Once started, people can work for hours, but they can't make themselves take the first step. The problem is starting, not doing. A thread in r/getdisciplined drew 36 upvotes and 44 comments between Sep 14, 2026 – Oct 14, 2026. People get by with Focusmate (scheduled) and Discord study rooms, and that still leaves this job open. Hotness is 3.40, Warm. Strong pain. Some willingness to pay. The thread drew 36 upvotes and 44 comments. Only clumsy or enterprise-only options. A few weeks of work. A first version is a moderate amount of work, about 3–4 weeks, priced between $10 and $49 a month and charged as a subscription. The pain, the source, the alternatives, the scope notes, and the questions on this page are free to read and free to build from. The agent starter prompt is the paid part. The first slice is on the page. One credit unlocks the rest, to paste into a coding agent, download as Markdown, or send as a private link.
Who has it
People with ADHD, remote workers and students.
- People with ADHD
- Remote workers
- Students
- B2C
- Global
- r/getdisciplined
What people use now
2 options, and the gap between them.
Focusmate
Scheduled
Discord study rooms
Only clumsy or enterprise-only options.
On-Demand Body Doubling to Start a Task is built for the part these leave undone.
A way through
Instant video body-doubling on demand (not a scheduled session): a 2-3 minute 'start button' with a live human or AI companion that covers just the start.
MVP scope
The first version, in 3 weeks.
- 00 Goal
The one job
A panic button that connects you to a person or AI companion for 2-3 minutes, just to get started.
- 01 Week 1
The core
Put a 'start button' on the screen that connects instantly, with no booking.
- 02 Week 2
The follow-through
Pair the user with a live human or an AI companion for two to three minutes, just to get started.
- 03 Week 3
How it ships
As a web app that opens in any browser, with nothing to install. AI does the core work, and people can check what it produced.
- — Not in v1
Left out on purpose
Replacing Focusmate. Version one does the one job above and stops there.
How it could charge
The business model, at a glance.
- Model
- Subscription
- Price
- $10–49 a month
- Buyer
- PeopleAn individual or household pays
- Region
- Global
Hotness
Why it scores 3.40.
Strong pain. Some willingness to pay. The thread drew 36 upvotes and 44 comments. Only clumsy or enterprise-only options. A few weeks of work.
36 upvotes 44 comments r/getdisciplined Sep 14, 2026 – Oct 14, 2026 verified Oct 14, 2026 Thread ↗
Weights: pain 25%, willingness to pay 20%, demand 20%, gap 15%, ease 10%, recency 10%. Recency is recomputed every build. The source report’s 1–10 score is not shown.
Market size · estimate
How big this could get
A bottom-up estimate for On-Demand Body Doubling to Start a Task: real customer counts × a realistic price. Not a forecast.
$414M a year
2.3M members · 15% of US adults with a current ADHD diagnosis
$124M a year
690,000 members · online, English-speaking
$1.2M a year
6,900 members · 1% of the reachable segment in three years
What that means
6,900 members at $15/mo = $1.2M ARR
Medium confidenceHow we estimated this
- Base: 15,500,000 US adults with a current ADHD diagnosis.
- Has the problem: 15% (assume 15% would use body doubling weekly).
- Revenue per member: $180 per year ($15/mo).
- Reachable: 30% (online, English-speaking).
- Three-year capture: 1% of the reachable segment.
TAM = customers with the problem × revenue per customer. SAM = the part an early product can reach. SOM = a conservative three-year share of SAM. Bars use a log scale. Shares marked “assume” are our judgment, not measured.
Take it to a build
Build On-Demand Body Doubling to Start a Task with an agent, or with us.
Agent starter prompt
$9.99 / 1 credit
A full PRD written for a coding agent: scope, data model, screens, edge cases, and the first week of tasks for this idea.
- Copy it straight into Claude Code, Cursor, or Codex.
- Download it as a .md file you keep.
- Send your bot a private link that refreshes every seven days.
# Agent starter prompt: On-Demand Body Doubling to Start a Task You are a senior product engineer. Build only the product described in this document. If a detail is missing, choose the smallest option and write it down in the README. Do not invent a second product, a marketplace of marketplaces, or a growth hack. ## Product Name: On-Demand Body Doubling to Start a Task One line: A panic button that connects you to a person or AI companion for 2-3 minutes, just to get started. Shape: Web app AI stance: AI-native Region for v1: Global Hotness (context only, not a requirement): 3.40 (warm). Strong pain; some willingness to pay; thread engagement 36▲/44💬 (demand 2/5); only clumsy or enterprise-only options; a few weeks of work. ## Problem Once started, people can work for hours, but they can't make themselves take the first step. The problem is starting, not doing. Who feels it: People with ADHD, remote workers, and students.
The first slice is above. The rest unlocks for 1 credit and is never in this page’s HTML.
Credits work on both sites. On Business Ideas to Build the same credit unlocks the business plan and growth playbook for On-Demand Body Doubling to Start a Task.
Or we build it
Your first version, shipped by our team.
A working product in your repo, built from this PRD. You own the code.
$1,000 scoping fee, credited toward the build.
Equity instead of cash is an application, not a checkout →Questions
Is this idea already taken?
People already use Focusmate (scheduled), Discord study rooms. Those options do not do the job in the solution above. The idea is free to build. Nothing here is an exclusive claim.
How hard is a first version?
Moderate. A tight MVP is about 3 weeks (3–4 weeks), assuming the regulated or partner-gated parts are stubbed. The paid prompt turns that into tasks.
Who would pay, and how?
The audience is people with ADHD, remote workers, and students. Charge a subscription, and test a price between $10 and $49 a month. Willingness to pay is one input to Hotness, not a promise that someone will buy.
Can I use the evidence?
Yes. Build the product. The thread title is a short excerpt with a link, not a quote we are putting in someone's mouth. Exact post dates and verbatim lines are added only after a manual check. Ideas are suggestions, not medical, legal, or financial advice.
The sister site has the plan and the first month of distribution. Your credits work there too. Draft the business plan