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Life & fun · January 23, 2021

Koins

Minimalistic Currency Converter

Koins launched on January 23, 2021 with 7 votes, #1,184 of 3,157 launches that month. The site was not reachable when checked in September 2026.

What it does

Koins is a beautiful "one-handed use" currency converter. The whole purpose of this app is to design a currency converter that is easier for one-handed use.

Does a similar job

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  • Koins2017 · apps.apple.com · ▲83

    A currency converter designed for one-handed use

  • WorldKoins2016 · ▲85

    Make use of your leftover travel foreign currency

  • Kotlin Money2024 · blog.eriksen.com.br · ▲427

    Manipulating 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.

  • Tiny Currency2024 · apps.apple.com · ▲84

    A simple currency converter built for travel-minded people

  • Convertable2018 · ▲76

    Currency calculator with on-the-fly conversion

  • Find.Exchange Currency Converter2017 · chromewebstore.google.com · ▲75

    A currency converter with live rates that updates every 3s

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Source: Product Hunt launch ↗

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