Tangled Tech

What it does

Free profit calculators for every major print-on-demand platform. Know exactly what you'll earn on Amazon KDP, Merch by Amazon, Redbubble, Zazzle & Society6 - with fees, tiers, and royalties fully up to date. We include Expanded Distribution for KDP and updated product items for every other platform.

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  Profit and FeesJun 2026 · ▲2

  Know your real profits after fees, taxes, and platform cuts

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  KDP Quick ScoutJun 2026 · kdpquickscout.com · ▲2

  Free KDP niche research on every Amazon book page

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  Calc3DPrintJan 2026 · ▲7

  Free G-Code Cost Calculator & Profit Estimator.

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  KDP Metric — Amazon book niche researchJul 2026 · kdpmetric.com · ▲3

  Grades any Amazon niche A-F, free, right in Chrome

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  FlipperHelperMay 2026 · flipperhelper.app · ▲4

  From car boot to eBay — track every flip's real profit

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  SmartKDP12d ago · smartkdp.com · ▲1

  All in one platform for the KDP

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  PaymentKit▲466

  Billing that survives a processor shutdown

  Commerce · 14d ago · paymentkit.com

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  Equitybee Benchmark▲241

  Compare your startup equity grant for free.

  Commerce · 27d ago · equitybee.com

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  Brew ▲905

  Like Claude design for email marketing

  AI · May 2026 · brew.new

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  Kilo Code for VS Code▲897

  Parallel agents, diff reviewer, and multi-model comparisons

  Dev tools · May 2026 · kilo.ai

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  StoreClaw▲805

  Grow your store profits with agents that know how to sell

  AI · May 2026 · storeclaw.ai

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  PollyReach▲796

  Give your agent a real number and voice to make calls.

  AI · May 2026 · pollyreach.ai

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  Needle: We Distilled Gemini Tool Calling into a 26M Model▲776

  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…

  Life & fun · May 2026 · github.com

• FM
  Files.md – Open-source alternative to Obsidian▲730

  Dev tools · May 2026 · github.com