ROASStack

What it does

Free, high-performance E-Commerce & Digital Ads Strategy Simulator. Calculate Break-Even ROAS, Shopify net profit, Amazon FBA fees, A/B testing significance, LTV:CAC payback, and Google Ads bids.

Precision financial modeling & scaling calculators for media buyers, growth marketers, and direct-to-consumerfrom roasstack.com

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  Free Ads Spend Calculator2020 · ▲138

  Be more confident in making sure you get that ROI

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  Profit Per Order13d ago · profitperorder.com · ▲1

  Free ecommerce profit calculators with visible formulas

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  Abuv The Par Amazon FBA Profit Checker18d ago · abuv-the-par-amazon-fba-profit.netlify.app · ▲1

  Amazon FBA Profit Calculator – Check Your Profit

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  Freemium Calculator by Dodo Payments2024 · ▲35

  Evaluate ROI of free users versus paying customers

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  One-click data pipeline for modelling e-commerce profitability2024 · github.com · ▲5

  Hi HN, Here is the open source repo of the data pipelines built in dbt to model profitability at the level of an order. Covers sources like: Shopify, Facebook Ads, Fedex, Paypal, Manufacturing Costs, VAT etc. Benefits for ecomm - Precise Granular Revenue and Profit analysis at the level of orders. - Template to automate Profits calculation saving you 100s hours of manual work in Excel or GSheet. - Increase ROI on Paid Marketing: By understanding hidden costs like VAT and shipping, you can make smarter decisions on ad spend across different countries. Hope this is useful!

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  RWA: True Profit Analytics2d ago · apps.shopify.com

  True Shopify profit after COGS, fees, and ads

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  AstraPixels▲267

  ​​A pixel-art solar system at its real current positions.​

  Growth · 29d ago · astrapixels.com

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  WorldMap.lol▲197

  Put your startup on the map. Literally.

  Growth · 13d ago · worldmap.lol

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  Open-Source eInk Bike Computer▲380

  OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.

  Dev tools · 1d ago · opentrailpaper.com

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  Running 104GB Qwen3.8-Flash-Next on 48GB Mac with at ~12 tok/s▲237

  Run Qwen3.8-Flash-Next (125B MoE, 104 GB at 4-bit) on Macs with a fraction of that RAM by streaming experts from SSD. MLX + Swift, Ollama-compatible API. - carloslfu/slotstream

  Dev tools · 4d ago · github.com

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  TERMy – A fast terminal assistant that does not use LLMs▲184

  NPC-Forge is a framework for building conversational agents that run on the CPU without relying on machine learning or LLMs. - NPC-Forge/docs/development.md at main · gioblu/NPC-Forge

  AI · 2d ago · github.com

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  Weedout – Safari extension that hides YouTube AI-labeled videos▲182

  Weedout is a Safari extension that filters out videos YouTube labels as “Made with AI”.

  AI · 4d ago · masteranza.github.io

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  HN Match Maker – Matching "Who Wants to Be Hired?" With "Who's Hiring?"▲123

  Find your next hire or your next role from Hacker News monthly threads. AI-powered matching between candidates and job postings.

  AI · 4d ago · hnmatchmaker.com

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  OwnTime – a chess clock for your day's priorities▲110

  I made OwnTime to balance between competing priorities in my life. The idea is based on two main influences: the concept of "roles" from "The 5 Choices" (2015), and my repeated failure to effectively implement time blocking due to the necessary flexibility in my role. The app allows you to define time budgets, which are not much more than a few mutually exclusive countdown timers. The UX is essentially that of a chess clock for an arbitrary number of players with configurable time. The whole point of the app is to kick you out of the running role/priority when its time is up. One…

  Life & fun · 4d ago · owntime.app