Index
Productivity startup ideas
This shelf holds 12 startup ideas about Productivity. Average Hotness is 2.89, on a 1 to 5 scale that mixes pain, willingness to pay, public-thread demand, the gap left by current tools, build effort, and how fresh the evidence is. Scores cool when no newer evidence is added. The strongest score here is 3.75 for Time-Machine Version History for Obsidian: Git-powered snapshots with a visual diff and one-click restore, for users who don't know git. Also on this shelf: On-Demand Body Doubling to Start a Task, Active-Recall Quizzes From Recorded Lectures, Alarm Clock With Real-Money Stakes, and Fair Time Tracker for Non-Typing Work. The most common way these products charge is Freemium (5 of 12). 1 are aimed at a business buyer and 11 at an individual. 4 look weekend-easy, 5 moderate, and 3 hard. Open a page for the complaint, the source link, and the gaps. The ideas are free to build. The agent prompt is the part that costs a credit.
Time-Machine Version History for Obsidian
Git-powered snapshots with a visual diff and one-click restore, for users who don't know git.
On-Demand Body Doubling to Start a Task
A panic button that connects you to a person or AI companion for 2-3 minutes, just to get started.
Active-Recall Quizzes From Recorded Lectures
Turn lecture and meeting recordings into retrieval-practice questions instead of transcripts you never reread.
Alarm Clock With Real-Money Stakes
Put a small deposit on waking up; prove you're up or the money goes to a cause you hate.
Fair Time Tracker for Non-Typing Work
Credit reading, research and thinking time fairly, instead of judging work by keystrokes and screenshots.
Procrastination-Cleaning Detector
Notice when you suddenly start cleaning or binge YouTube to dodge a task, and gently surface the task.
Multi-Vault Navigator for Obsidian
Browse and search several Obsidian vaults in one window while keeping their sync and privacy separate.
Universal Recall Search for Everything You Saved
Semantic search across notes, bookmarks, screenshots and PDFs, built around 'what was I looking for?'.
Doomscroll Impulse Redirector
Instead of blocking apps, intercept the urge to scroll and swap it for a two-minute physical micro-action.
Habit Tracker That Forgives a Missed Day
A habit app built around getting back on track after a slip, not around streaks.
Flexible Block Planner Instead of Time Blocking
Plan your day as reorderable blocks of work with no fixed start times, halfway between a to-do list and a calendar.
PDF Annotation Inside Obsidian
Read and highlight PDFs in Obsidian with two-way sync of highlights into your notes.
Questions
How many startup ideas are in Productivity?
There are 12. The highest Hotness is 3.75 for Time-Machine Version History for Obsidian.
Which idea should a founder open first?
Open Time-Machine Version History for Obsidian if you want the strongest score on this shelf. If you want a shorter build, use the weekend-easy collection and come back to the ideas that match both.
What is free here?
Every idea page, the sources, and this index are free. An agent PRD costs one credit. The first credit comes with an email signup. Building any of these ideas is allowed.