Substack Messaging Extension
By Kleio Tech
The Substack Auto Messenger Chrome extension is a tool designed to simplify communication with your Substack subscribers. It allows…
Time on the storeAbout 1 to 3 yearsA rough range, not an exact date
Store users129As shown on the Chrome Web Store
Chrome Web Store rating3.7 / 53 ratings on the Chrome Web Store
Last store update13 Jul 2026Version 1.3.1, 3 months ago
How Substack Messaging Extension is doing
Substack Messaging Extension has been on the store for roughly one to three years and is in the top 25% of Developer Tools by users. Recent activity is steady.
- Time on the store
- About 1 to 3 years
- Recent direction
- Steady
A rough range, not an exact date.
Moving at about the same pace as the month before.
Members see the exact launch date, growth history and every release
Inside the extension
Product image 1 of 1Reviews
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The maker
Kleio Tech has 3 listings on the store. Updates now and then.
- Listings
- 3
- Combined store users
- ≈299
- Store Featured
- 0
- Updated in the last 90 days
- 1 of 3
- Auto Clicker for Follow Buttons135 users · updated 6 months ago
- Substack Notes Scheduler35 users · updated 6 months ago
Combined users can count the same person more than once. See all 3 listings
Ext Watch AI
Should you build in this niche?
One research report for Substack Messaging Extension. Reports come with Plus, Pro and Max.
- Takeaway & demandCited takeaway and search volumes
- Traffic & domainPopularity rank, visits and authority
- Money & pricingPlans and prices from the maker’s site
- ReviewsComplaints and praise, quoted
- Competitors & ranksRank against the closest listings
- Build opportunityWhat to build and how to position it
- Every number shows its source and date
- Ready in a minute or two
- Report and PDF yours for 30 days
