SubUp — Substack Analytics & Creator Search

Overview

Connect your Substack to SubUp.app for advanced analytics: notes performance, activity center, follow feeds, and creator search.

SubUp is the analytics tool built for Substack creators. This extension is required to unlock SubUp's authenticated features: 📊 Notes Performance — engagement, profile visits, and subscriber attribution for every note you publish 📥 Activity Center — comments, mentions, and restacks from the past 14 days, all in one inbox 👀 Follows Feed — track creators you care about and see their recent activity 🔍 Creator Search — find and follow any Substack writer by name or handle ✨ AI Insights (Pro) — Claude-powered analysis of what's working in your content PRIVACY The extension reads your Substack session cookie and sends it securely (encrypted at rest with AES-256-GCM) to subup.app, so the SubUp web app can call Substack's authenticated APIs on your behalf. We never use it to post, comment, or take any write actions outside actions you explicitly trigger from SubUp's UI. You need a free SubUp account at https://subup.app to use this extension. Privacy policy: https://subup.app/en/privacy Terms of service: https://subup.app/en/terms

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Details

Version
0.1.6
Updated
May 20, 2026
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Offered by
mikel
Size
18.06KiB
Languages
2 languages
Developer
Mikel Pascacio Bernaus
Monte Chimborazo 550 Ciudad de México, CDMX 11000 MX
Email
mikel@shiftagency.ai
Phone
+34 663 45 38 61
Trader
This developer has identified itself as a trader per the definition from the European Union and committed to only offer products or services that comply with EU laws.

Privacy

Manage extensions and learn how they're being used in your organization

SubUp — Substack Analytics & Creator Search has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.

SubUp — Substack Analytics & Creator Search handles the following:

Personally identifiable information

Authentication information

User activity

This developer declares that your data is

Not being sold to third parties, outside of the approved use cases
Not being used or transferred for purposes that are unrelated to the item's core functionality
Not being used or transferred to determine creditworthiness or for lending purposes

Support

For help with questions, suggestions, or problems, visit the developer's support site

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