LoopsEmail platform for SaaS: marketing and transactional email in one place
vs
SubstackThe app for independent voices
Comparison · Email Marketing · weekly run Nov 2
Loops vs Substack
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Loops is the stronger AI pick in Email Marketing: it has a visibility score of 3.1 versus 0 for Substack.
Choose Loops if…
- You want the brand AI engines rank higher (3.1 vs 0)
- You need Data Privacy Framework (DPF) coverage
- Recommended for product-led growth and developer-first SaaS
- Included in recommended shortlist of email platforms
Choose Substack if…
No clear advantage in the published data.
AI visibility side by side
Latest weekly run · Nov 2
| Metric | Loops | Substack |
|---|---|---|
| Visibility score | 3.1% | 0% |
| Change vs last week | New | New |
| Rank in Email Marketing | #23 | #55 |
| Share of voice | 0.9% | 0% |
| Mentions this run | 4 | 0 |
| Positive in AI answers | 50% | — |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Loops 0pp · Substack 0pp over 0 weekly runs.
Engine by engine
Loops leads on 3 of 3 engines
ChatGPT
AI Mode
Perplexity
LoopsSubstack
Head to head in AI answers
0 engine answers name both brands
0Loops ranked higher
0Substack ranked higher
Features, pricing & fit
| Dimension | Loops | Substack |
|---|---|---|
| Pricing model | Flat tiers | — |
| Entry price | Free; paid from $49 / mo | — |
| Free plan | Yes | — |
| Compliance | Data Privacy Framework (DPF) | — |
| Support | Email help@loops.so, Support page | Help center, Resource center, Community and programs |
| Founded | 2022 | 2017 |
| Employees | 11–50 | — |
| Funding | Seed · $3M raised | Series C · $200M raised |
| Best for | SaaS teams that want marketing, product, and transactional email in one platform | Writers, journalists, podcasters, video creators and media companies that want to sell subscriptions directly to readers |
Plans side by side
Substack
Pricing not available.
Pros and cons
Themes from the AI answers that mention each brand
Loops
- Recommended for product-led growth and developer-first SaaS
- Included in recommended shortlist of email platforms
Substack
Profile in progress.
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Loops vs Substack”, https://slateindex.ai/compare/loops-vs-substack, data of Nov 2, 2026. Licence: CC BY 4.0.