INDEX / SAAS
Personal Energy Tracker (Week-in-Review SaaS)
A beautifully designed self-reported weekly check-in tool that tracks personal energy, meeting quality, and productivity trends over time — like a Whoop band for your calendar.
▶ WATCH THE SOURCE SEGMENT — Bootstrapping Through A Bear Market with Noah Kagan01 THE IDEA
The hosts discuss how Noah Kagan runs a weekly self-survey via Google Forms to track his own leadership consistency, business momentum, and energy-draining meetings. They note that while the raw data is useful, there's no elegant product that packages this into a nice UI with trend lines, prompts, and actionable insights. The idea is to build a purpose-made app that sends you a short weekly (or post-meeting) survey, aggregates the responses, and surfaces patterns — essentially a personal performance dashboard for founders and knowledge workers.
The product could integrate with calendar data to auto-trigger post-meeting micro-surveys (thumbs up/down style), accumulate data over time, and eventually offer AI-driven suggestions like 'you consistently feel drained after calls with X type of meeting — consider cutting them.' The target audience is productivity-obsessed professionals, founders, and executives who already use tools like Whoop, Oura, or RescueTime but want a subjective energy layer on top of objective data.
02 THE NUMBERS
$40K – $300K
$15K + 300h
$2K + 60h
7/10
7 · GROWING →
product design (UI/UX), full-stack development, data visualization, growth/content marketing
03 THE VERDICT
The idea is genuinely useful and the gap is real — no elegant standalone product nails this yet. However, it lives in a crowded adjacency (productivity SaaS) with low willingness-to-pay for personal tools, and it's easy to replicate with a Notion template or Google Form. The path to strong ARR requires either a very sticky habit loop or an enterprise/team angle. Worth building as an MVP with calendar integrations to validate retention before investing heavily.
04 THE FIELD
- RescueTimeest. 2007STEADY · ADDED 2026-06-07
CATEGORY LEADER IN AUTOMATIC TIME TRACKING
Tracks app and website usage automatically but lacks subjective energy/mood self-reporting.
- Reflectest. 2021GROWING · ADDED 2026-06-07
NICHE PLAYER <5%
Note-taking and journaling app for knowledge workers with some reflection features.
- Tabilityest. 2019GROWING · ADDED 2026-06-07
NICHE PLAYER <5%
Weekly check-ins and OKR tracking for teams, not personal energy focus.