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

CLUSTER UNIT-CATEGORIES-CONVERTER · 33 ENTRIES · EARLIEST ENTRY 2014-03-06

Unit conversion mobile apps

This cluster consists of unit conversion mobile apps offering dozens to hundreds of measurement categories, live currency rates, built-in calculators, and offline support. Entries date from May 2010 through June 2026, with one entry in most months and two in February 2019, indicating a slow, consistent release pattern over many years. Traction is minimal: the three highest-signal apps (Unit Converter: Mila's Tools, CONVERT UNITS, Unit Converter - Convert all) each have zero stars.

Entry timeline

ENTRY TIMELINE

AUG 2009: 1APR 2010: 1MAY 2010: 1NOV 2010: 1DEC 2010: 1FEB 2011: 1MAR 2011: 1DEC 2011: 1MAR 2013: 1SEP 2013: 1MAR 2014: 1APR 2014: 1AUG 2014: 1APR 2015: 1JAN 2016: 1FEB 2016: 1JUL 2016: 1SEP 2016: 1FEB 2017: 1FEB 2019: 3MAR 2021: 1FEB 2023: 1JUL 2023: 1SEP 2024: 1NOV 2024: 1DEC 2024: 1JUN 2025: 1FEB 2026: 1MAR 2026: 1APR 2026: 1JUN 2026: 1
AUG 2009JUN 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 · 7 hand-coded · 6 unlabelled

Operator · 8 commercial · 1 open source · 4 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 13 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 21Converter-Universal Conversion0★1 yrabandonedlivecommercialApp that converts over 300 engineering and scientific units in 32 categories, including hardness scales, currencies, and calculators for engineers.
  2. 22Unit Converter : FromTo0★1 yrabandonedliveConversion app that handles over twenty unit categories, including live currency exchange, for students, professionals, and travelers.
  3. 23Fancy Units Converter0★2 yrabandonedlivecommercialA customizable unit and currency converter with live exchange rates, supporting 24 categories, a built-in calculator, and automatic recalculation across selected units.
  4. 24Units - Pro Unit Converter0★2 yrabandonedlivecommercialMobile app that converts over 800 units across 43 categories and 88 currencies, with daily updated exchange rates and customizable lists.
  5. 25Unit and Currency Converter0★2 yrabandonedliveMobile app that converts units and currencies with hourly exchange rates and customizable category lists.
  6. 26Equate0★6 yrabandonedlivehand-codedopen sourceUnit conversion calculator that converts between over 130 units across more than ten measurement types, including real-time currency.
  7. 27Converter - Units & Currency0★9 yrabandonedlivehand-codedMobile unit converter app converting hundreds of units across categories and real-time currency rates with an easy-to-use interface.
  8. 28Converter (unit conversions)0★7 yrabandonedlivehand-codedcommercialUnit converter that handles 76 units across eight types and offers daily currency rate updates via subscription.
  9. 29gUnit - Currency & Unit Converter (Conversion)0★12 yrabandonedlivehand-codedcommercialUnit and currency converter app offering over 330 units and currencies with search, favorites, and a sleek design.
  10. 30Converter+ (Units, Currencies)0★9 yrabandonedlivehand-codedcommercialMobile app that converts units and currencies across many categories and includes calculators for mortgage, loan, tip, and fuel consumption.
  11. 31Converter: Units & Currencies0★7 yrabandonedlivehand-codedcommercialMobile app that converts between over 450 units across 25 categories and 150 currencies, supporting multiple languages for users worldwide.
  12. 32EZPZ Unit Converter0★3 yrabandonedliveUnit converter app offering many categories, thousands of conversions, live currency rates, saved conversions, and educational facts.
  13. 33Converter Plus [paid]0★9 yrabandonedlivehand-codedcommercialComprehensive unit converter with hundreds of categories, currency exchange rates, and additional calculator templates for everyday problems.

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.