Whitespace.
See who already built your idea — and the space they left open.

CLUSTER AGE-CALCULATES-PERSON · 9 ENTRIES · EARLIEST ENTRY unknown

Birthdate age calculators

This cluster consists of web apps and a browser extension that calculate a person's age from their birth date, plus an entertainment variant for celebrity age guessing and a personal-analysis tool using birth name and date. The dated history is too thin to read a shape from: only one dated entry exists before the index start, and most members have no source date. Traction leaders are age-counter-ext, "How old was I in ?", and 探究分析学®︎分析ツール, each with 0 stars.

Entry timeline

ENTRY TIMELINE

MAY 2025: 1AUG 2026: 7SEP 2026: 1
MAY 2025SEP 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 3 ai-built · 1 hand-coded · 5 unlabelled

Operator · 3 hobby · 1 indie · 5 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 9 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01age-counter-ext0★1 yrabandoned—ai-builthobbyA browser extension that calculates and displays a person's age.
  2. 02How old was I in ?0★unknownliveWeb app that calculates a person's age for a given year from their birthdate.
  3. 03探究分析学®︎分析ツール0★unknownliveai-builtWeb app that performs a personal analysis for users by taking their birth name and birth date and returning a diagnostic result.
  4. 04Age Calculator0★unknownliveWeb app that calculates a person's age based on date of birth.
  5. 05Age calculator app | pratov.uz0★unknownliveindieCalculates a person's age based on their birth date.
  6. 06How old is that celeb?0★unknownliveai-builthobbyWeb app that lets users guess or look up the age of celebrities for entertainment.
  7. 07Age Calculator0★unknownliveWeb app that calculates a person's age from their date of birth.
  8. 08Age Calculator App0★unknownlivehand-codedhobbyWeb app that calculates a person's age based on birth date.
  9. 09Age Gate0★unknownliveAge verification web app that blocks visitors until they confirm they are of legal age.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.