Digital ID

What it does

Get a copy of your work ID in your Google / Apple Wallet in 3 easy steps. No app install is required. We will give you the first Digital ID for free when you sign up.

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  Badge2025 · ▲191

  Build faster in mobile wallets

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  Idencard2018 · ▲85

  Digital business card app for Android and iPhone

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  WalletWalletDec 2025 · ▲165

  Create Apple Wallet passes for unsupported cards

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  Iris ID2025 · ▲103

  Safe and instant identity verification for $0.01

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  businesscards.io2022 · ▲79

  A business card you keep in your Apple Wallet

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  Barcodes2022 · ▲156

  Digital wallet for iOS that lets you scan and store tags

• TL
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  Take control of hair pulling, nail biting & skin picking

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  Scroll through all 43252003274489856000 Rubik's Cube states▲295

  Scroll through all 43,252,003,274,489,856,000 reachable Rubik's Cube permutations.

  Life & fun · 26d ago · everycube.alen.is

• 
  Expeditione▲265

  The Interactive 3D Encyclopedia

  Life & fun · 21d ago · expeditione.fun

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  Eigendrum - Draw any shape and hear what it sounds like as a drum▲243

  Hi HN, I built Eigendrum, a web tool that solves the 2D wave equation for arbitrary shapes so you can hear what they sound like as drums. How it works: * Solves -∇²u = λu using finite element analysis (Kφ = λMφ) on a triangle mesh. * Validated to <0.1% error against closed-form solutions for circles (Bessel zeros) and rectangles. * Sound model factors in strike location, Rayleigh damping, and mallet width. * Includes Kac drums I & II to demonstrate identical sound spectra from different geometries. * No frameworks, build steps, or dependencies. Repo and tests:…

  Life & fun · 26d ago · baselashraf81.github.io

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  Guideflow▲1,341

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• IB
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  Welltory▲1,030

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  The database of verified startup revenues

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• B
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  Life & fun · Nov 2025 · boing.greg.technology