Simsima

What it does

Simsima is the travel eSIM built for privacy-aware travelers and crypto natives. Get instant 4G/5G data in 200+ countries in under 60 seconds — no SIM swap, no ID check, no KYC. Pay with card or 50+ cryptocurrencies. Keep your main number active for WhatsApp & iMessage. Build multi-country Trip Packs and save up to 15%. Earn 4% cashback in SimCoins on every purchase. Reach real human support 24/7 in your language. No app required — scan the QR sent by email and you're online. From $4.50.

• IB
  I built a Switchless eSIM that works in 200 locations and regions2024 · truely.com · ▲17

  Hello HN, A year ago, I started the journey to create what we call a Switchless eSIM for travelers. The problem we’re solving comes from first-hand experience with accessing data while traveling overseas. The old methods like swapping SIMs, paying high roaming fees, or relying on WiFi are inconvenient and costly. Our solution is a single eSIM that you install once, then buy data for any country you travel to, and get connected instantly. Our app will be live in the next few days (hopefully), so for now, it’s just web. I would love to know if you’ve used eSIMs when travelling overseas and…

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  RoamJetMar 2026 · ▲3

  We accept crypto

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  mysim24Jul 2026 · mysim24.de · ▲8

  Your data plan for every trip — online anywhere

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  CryptoeSIMMar 2026

  Buy instant eSIMs with crypto. 190+ countries. No KYC.

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  CryptoeSIM4d ago · cryptoesim.io · ▲1

  Buy instant eSIMs with crypto. 190+ countries. No KYC.

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  ESIMPYJun 2026 · esimpy.com · ▲2

  Stay connected anywhere

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• NW
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  Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…

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• FM
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