Privy vs Substack
Privy is a email marketing platform while Substack is a newsletter platform. Privy has been around since 2011, giving it a 6-year head start over Substack (founded 2017). Substack starts at free versus $30/mo for Privy. Substack offers a free plan (Unlimited subscribers, unlimited emails, all core features free — Substack only charges when you earn), while Privy does not. Privy has the edge with marketing automation, A/B testing, SMS marketing.
Quick Verdict
Privy wins on rating, integrations.
Substack wins on price, free tier.
Best for most users: Substack (independent writers and journalists).
Privy
Ecommerce email and SMS marketing built for Shopify stores
Privy is an ecommerce-focused email and SMS marketing platform built specifically for Shopify stores, combining conversion popups, email campaigns, and abandoned cart recovery in one tool. With unlimited email sending on all paid plans and a native Shopify integration, it's designed for DTC brands and small online stores that want to grow their list and revenue without the complexity of enterprise marketing platforms.
Substack
The newsletter platform where writers build independent media businesses
Substack is the dominant newsletter platform that uniquely combines free publishing tools with a 10% revenue-share model, letting writers launch subscription-based media businesses with zero upfront cost. Beyond newsletters, it has evolved into a full creator ecosystem with podcasts, video, livestreaming, Notes (microblogging), and community Chat, backed by a powerful built-in discovery network that helps writers find audiences organically.
Feature Comparison
| Feature | Privy | Substack |
|---|---|---|
| Rating | 4.6/5 | 4.4/5 |
| Starting Price | $30/mo | Free |
| Free Plan | No free plan | Unlimited subscribers, unlimited emails, all core features free — Substack only charges when you earn |
| Founded | 2011 | 2017 |
| Email Templates | 50 | 1 |
| Integrations | 20 | 0 |
| Deliverability Rate | 95% | 95% |
| Marketing Automation | ✓ | ✕ |
| A/B Testing | ✓ | ✕ |
| Landing Pages | ✕ | ✕ |
| Segmentation | ✓ | ✕ |
| Drag & Drop Editor | ✓ | ✕ |
| SMS Marketing | ✓ | ✕ |
| Ecommerce Features | ✓ | ✕ |
| API Access | ✕ | ✕ |
| Multi-Language | ✕ | ✕ |
| Web Push Notifications | ✕ | ✕ |
| Live Chat | ✓ | ✕ |
| Advanced Analytics | ✕ | ✕ |
Privy: Pros & Cons
Pros
- +Deep native Shopify integration with one-click install and automatic product syncing
- +Unlimited email sending on all paid plans — no volume limits that punish growth
- +Excellent popup and conversion tools including spin-to-win, exit intent, and cart savers
- +Combined email + SMS marketing eliminates need for separate communication tools
- +Built specifically for ecommerce with abandoned cart recovery and welcome series automation
Cons
- −Limited to ecommerce use cases — not suitable for B2B, SaaS, or non-store businesses
- −No public API, limiting custom integrations and developer extensibility
- −Pricing scales by contacts, getting expensive at higher subscriber counts
- −Reporting and analytics are basic compared to full-featured email marketing platforms
- −Template selection is limited compared to competitors like Klaviyo or Omnisend
Substack: Pros & Cons
Pros
- +Completely free to start with no upfront costs — zero barrier to entry with all core publishing features available immediately
- +Built-in audience discovery network with Recommendations and Notes driving organic subscriber growth (users report gaining 1,000+ subscribers through Recommendations alone)
- +True content ownership: creators can export their full subscriber list and content at any time to migrate elsewhere
- +Multimedia platform supporting newsletters, podcasts, video, livestreaming, Notes, and Chat communities in a single integrated experience
- +Strong reader engagement with genuine community interaction through comments, Chat, and Notes — higher engagement rates than typical social media platforms
Cons
- −The 10% platform fee plus Stripe's ~2.9% + $0.30 per transaction creates a 13-16% total take rate that becomes very expensive at scale (e.g., $1,300-$1,600/month on $10K revenue)
- −No email marketing automation, segmentation, A/B testing, or advanced personalization — all subscribers receive identical emails with no conditional logic
- −No public API and zero native third-party integrations — cannot connect to CRMs, e-commerce platforms, Zapier, or other marketing tools
- −Limited design customization with a single standardized template — no drag-and-drop editor, no custom HTML, and minimal branding options
- −Platform can remove content or delete accounts without notice, and customer support is difficult to reach for issue resolution
The Verdict
Privy and Substack are closely matched — both score within 0.2 points of each other in our overall rating. Your decision should come down to specific needs rather than overall quality.
| Criterion | Weight | Privy | Substack |
|---|---|---|---|
| Starting Price | 30% | $30/mo | Free |
| Deliverability | 25% | 95% | 95% |
| Rating | 25% | 4.6/5 | 4.4/5 |
| Integrations | 10% | 20 | 0 |
| Free Tier | 10% | No | Yes |
Weights determine how much each criterion counts toward the final score. See full methodology
Choose Privy if…
- + You need SMS marketing
- + You need marketing automation
- + You need ecommerce integrations
- + You need A/B testing
Choose Substack if…
- + You want lower starting costs (Free)
- + You need a free plan to get started
- + You're a independent writers and journalists
- + You're a newsletter creators monetizing through paid subscriptions