Koins
A currency converter designed for one-handed use
Koins launched on December 19, 2017 with 83 votes, #516 of 2,482 launches that month and more than 75% of that year's launches. The site was not reachable when checked in September 2026.
What it does
Koins is a simple and beautiful currency converter. It is designed for easier one-handed use. You can quickly access your frequently used shortcuts with a swipe from the screen edge, like switching between left handed and right handed use, switching to the dark theme in a bed, switching the sound off in a meeting, etc.,
Does a similar job
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Kotlin Money2024 · blog.eriksen.com.br · ▲427Manipulating monetary amounts is a common computing chore. However, no mainstream language has a first-class data type for representing money, it’s up to programmers to code abstractions for it. This isn’t an issue per se until dealing with rounding issues from operations like installment payments (e.g., buy now, pay later), foreign exchange, or even simple things like fee processing and tax collection. Inspired by my days at N26 Brasil dealing with these challenges, I introduce Money: a Kotlin library that makes monetary calculations and allocations easy.
Find.Exchange Currency Converter2017 · chromewebstore.google.com · ▲75A currency converter with live rates that updates every 3s
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