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StackStats.app
Substack
Accelerate pipeline, drive revenue, and align marketing and sales with Pardot marketing automationโ, a Salesforce.com company. Track all prospect interactions on your site โ from downloads to page views โ then score prospects based on parameters you set. Put time back into your sales repsโ day with automated lead nurturing and real-time sales alerts, which allow reps to prioritize their time. Then, measure the true ROI of your marketing efforts with closed-loop reporting.
StackStats is a local desktop app for serious Substack writers. Import your CSV exports and get analytics Substack doesn't show you: bot-filtered open rates, cohort retention, dead subscriber detection, superfan ID, content-to-growth correlation, and an optional AI layer (supports Ollama, Claude, GPT-4, Gemini). Your subscriber data never leaves your device. No cloud, no account, no subscription. 1-Year license at $39, Lifetime at $79.
Pardot
StackStats.appPardot is recommended for mid-sized to large enterprises, particularly those that are already using Salesforce CRM or plan to, and are looking to streamline their marketing and sales alignment. It's ideal for teams that need advanced lead nurturing capabilities, robust analytics, and a platform that can scale with business growth.
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StackStats.app's answer:
I built StackStats because Substack's native analytics weren't cutting it. I wanted cohort data, real open rates (not bot-inflated), and a way to identify which posts were actually driving subscriber growth โ but every tool I found was either cloud-based or required migrating off Substack entirely. So I built a local app that works with Substack's own CSV exports. No migration, no cloud, no subscription.
StackStats.app's answer:
StackStats runs 100% locally on your machine โ your subscriber data never touches a server. It also goes far beyond what Substack shows natively: bot-filtered open rates, cohort retention, superfan identification, dead subscriber detection, and content-to-growth correlation. No subscription, no account, no cloud. Pay once, own it forever.
StackStats.app's answer:
Most newsletter analytics tools are cloud-based SaaS with monthly subscriptions. StackStats is a one-time purchase that runs entirely on your device. For Substack writers who care about privacy โ especially those with paid subscribers โ that's a meaningful difference. You also get analytics features that don't exist anywhere else, like bot-filtered open rates and cohort retention, without having to migrate away from Substack.
StackStats.app's answer:
Serious Substack writers who are frustrated by Substack's shallow native analytics and want real data to drive growth โ without moving their subscriber data to the cloud.
StackStats.app's answer:
Electron (macOS + Windows), HTML/CSS/JavaScript, Chart.js, PapaParse. Optional AI layer supports Ollama, Claude, GPT-4, Gemini, Groq, and OpenRouter. Licensing via Cloudflare Workers + D1. Payments via Gumroad.
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Substack - With Substack, anyone can start a publication that combines a personal website, blog, and email newsletter or podcast. It's quick and simple.
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