Quantified Self is one of the most-tracked categories in our index. 103 products since 2021. The year-over-year data below reveals whether this space is accelerating, plateauing, or cooling off.
Five years of Quantified Self launch data. Volume, engagement, and the products that stood out.
Quantified Self is one of the most-tracked categories in our index. 103 products since 2021. The year-over-year data below reveals whether this space is accelerating, plateauing, or cooling off.
| Quarter | Launches | Avg Interest Score | Top Product |
|---|---|---|---|
| Q1 2026 | 3 | 298 | Tinkerer Club |
| Q1 2025 | 6 | 173 | Reset |
| Q2 2025 | 5 | 86 | Emotly |
| Q3 2025 | 5 | 142 | Mirror |
| Q4 2025 | 3 | 217 | Unloop |
| Q1 2024 | 8 | 157 | Polar Habits |
| Q2 2024 | 5 | 244 | BlissCompass |
| Q3 2024 | 9 | 326 | Me.bot |
| Q4 2024 | 2 | 280 | Voistory |
| Q1 2023 | 9 | 98 | Habit Story by Two Story |
| Q2 2023 | 5 | 94 | Conjure |
| Q3 2023 | 3 | 146 | Stoic Life Journal 2.0 |
| Q4 2023 | 10 | 120 | MealByMeal |
| Q1 2022 | 4 | 101 | COR |
| Q2 2022 | 3 | 89 | Personas |
| Q3 2022 | 8 | 115 | Potential |
The Quantified Self category has been steady over the past 6 years of tracked data. Total launches went from 11 in 2021 to 3 in 2026.
Average engagement ratio across all Quantified Self launches: 0.27. Products above that line tend to solve a specific, painful problem. Products below it often entered a crowded space without clear differentiation.
Quantified Self peaked in 2023 with 27 launches. That was 3 years ago. The decline since then could signal market consolidation, saturation, or attention shifting to adjacent categories.
Average engagement per product dropped from 0.22 in 2021 to 0.18 in 2026. More products competing for the same attention pool. The community is spread thinner, which makes high-engagement launches more impressive.
The highest-performing quarter was Q3 2024, with an average interest score of 326 across 9 launches. Me.bot led that quarter.
Depends on what's declining. If volume drops but engagement rises, the market is maturing. That's often good for existing players. If both drop, the category may be dying. The quarterly breakdown on each page tells you which pattern you're seeing.
At least three. Two data points is a line, not a trend. We have five years of data for most categories, which is enough to distinguish real shifts from noise.
Current year launches compared to the same period last year. Positive means more products launching. Negative means the category cooled. Neither is inherently good or bad. A mature category with fewer but better launches is often healthier than one flooding the market with clones.
Launch volume drops but engagement per product rises. Fewer builders entering, but the ones that do find a more receptive audience. That's an opportunity signal. We flag it when we see it.
We report what happened. We don't predict. Five years of data shows patterns, but markets surprise people for a living.
Three common reasons. The market consolidated around winners. The technology matured and stopped generating new startups. Or builder attention shifted to adjacent categories. Usually it's a combination.
Volume without engagement is saturation. Engagement without volume is opportunity. Check which one you're looking at.