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Platform Portability
Uses Substack subdomain (ruben.substack.com). Migrating would require subscribers to re-subscribe at a new address.
Custom domains let newsletters switch platforms without losing their audience.
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Stop collecting prompts. Finish something with AI this week. One step-by-step guide per email, with screenshots of my actual screen: where I clicked, what didn't work & what I loved.
Data updated 3 days ago
Avg Comments
170.9
Avg Likes
625.7
Engagement Rate
0.09%
| Subscriber-only |
| If I had absolutely no money, I’d use these free AI.List of the best free AI tools in 2026:Aug 23, 2026 | Subscriber-only |
| Prompt Engineering 101.The science behind prompt engineering.Aug 19, 2026 | Subscriber-only |
| Cowork.How to set up Claude Cowork with the /setup-cowork command:Aug 16, 2026 | Subscriber-only |
| I hate agents.I hated AI agents. Until I tried this new one recently:Aug 12, 2026 | Subscriber-only |
| How to deslop Claude in 2 words.You hate how AI talks. Fix it in 2 words:Aug 9, 2026 | Subscriber-only |
| Infographics.The step-by-step guide to making infographics with AI:Aug 5, 2026 | Subscriber-only |
| 27 Claude tips after 1,800 hours.My 27 Claude tips that aren't in any tutorial.Jul 29, 2026 | Subscriber-only |
| Can you detect AI?(since Substack now detects AI content)Jul 22, 2026 | Subscriber-only |
| ChatGPT shamelessly copied Claude.But does ChatGPT still matter?Jul 15, 2026 | Public |
(comments + likes) / subscribers
Typical for lists with 912K+ subscribers
Quality Score
Engagement vs AI
0.09% engagement rate
Score Breakdown
Engagement Score
vs 117 newsletters in AI
912K places you in the top 10% of newsletters in this category.
Engagement Rate
0.09%
median: 0.00%
Posts per Week
1.9
median: 1.0
Publishing Consistency
89/100
median: 67/100
Subscribers
912K
median: 2K
20.5K paid
Weekly Growth
+1.2%
Paid Subscriber Retention
+6.3%
net growth
Track revenue changes over time
Start tracking — freeTrack CPM rates as they change
Start tracking — freeSubscriber counts are rounded by the platform — step changes may not reflect actual growth
AI Report
58.5K subs
++0.9%/wk
MarTech AI
48K subs
Market Sentiment
44K subs
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See what's includedGet the full whitespace list with each brand's category fit, audience overlap, and recommended pitch order. Plus a comparison of How to AI vs the top 15 peer newsletters on sponsor mix, growth, and CPM.
Including AWS Graviton processors, Gemini 2.5 Flash, Claude + 46 more.
$300·2-3 working days·refunded if we can't deliver
Publishing Frequency
~2x per week
Last published Aug 26, 2026
Usually publishes Wed, Sun
1.9 posts/week avg
AI Pricing
$7.5/mo median
Premium tier
Monetization Readiness
Already monetizing
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912.0K subscribers and 0.09% engagement — past the threshold where AI newsletters typically attract sponsors.