SegmentFlow.ai vs Substack
SegmentFlow.ai
segmentflow.ai
Substack
substack.comSide by side
| Figure | SegmentFlow.ai | Substack |
|---|---|---|
| Price from | $19/mo | Free |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Plans published | 5 | 4 |
| Spec score · Email marketing tools | 8.4 (#57) | 9.2 (#8) |
| Spec score · Email Marketing Software | 8.2 (#78) | 8.6 (#41) |
| Email automation | Yes | Yes |
| Free plan | Yes | Yes |
| Integrations | The maker lists Shopify and WooCommerce connections, Salesforce contact imports, CSV uploads, forms, and API events. | Official integrations include RSS, podcast distribution to Apple and Spotify, Google Analytics 4, Google Tag Manager, X and Facebook pixels, Google site verification, YouTube and LinkedIn account connections. |
| Segmentation | Connecting Shopify or WooCommerce provides 11+ automatically populated ecommerce segments, and users can describe custom segments in plain English. | Yes |
| Support | The pricing page lists email support on Starter and priority support on Pro and Scale. | Substack directs users to its Help Center for FAQs and walkthroughs and handles subscriber support questions on behalf of writers. |
Plans
SegmentFlow.ai
- FreeFree
- Starter$19 a month
- Pro$49 a month
- Scale$99 a month
- FreeFree
Substack
- Free publishingFree
- Free to startFree
- Custom domain$50, paid once
- Paid subscriptionsPrice not published
In their own words
SegmentFlow.ai
SegmentFlow.ai is a web and API email marketing platform for campaigns, newsletters, automations, and transactional messages. Its AI drafts branded emails from a prompt using details gathered from a website, and users can edit blocks by chat. Shopify or WooCommerce connections populate more than 11 ecommerce segments, while custom segments can be described in plain English. Automations include welcome series, abandoned carts, post-purchase follow-ups, order confirmations, shipping updates, and password resets. Integrations include Shopify, WooCommerce, Salesforce contact imports, CSV uploads, forms, and API events. Store connections sync catalogs, customer profiles, order history, and inventory. Dashboards cover campaigns, journeys, lead magnets, newsletters, transactional emails, and domain warming. A/B testing is not available; it is marked coming soon. Plans are Free at free, Starter at $19 a month, Pro at $49 a month, and Scale at $99 a month.
Substack
Substack is a publishing platform for writers, creators, and subscribers, bringing posts, newsletters, podcasts, video, live streams, and pages into one publishing flow. Its editor supports scheduling, autosaved drafts, version history, templates, SEO metadata, and headline A/B testing. Creators can offer free or paid posts, subscriptions, trials, gifts, and group plans. Discovery tools include recommendations, Notes, leaderboards, referrals, and search; audience segmentation and email automation are also available. Podcast episodes can be distributed automatically to Apple Podcasts and Spotify, while video can go automatically to YouTube and LinkedIn. Publishing is free. When creators enable paid subscriptions, Substack keeps 10% of subscription revenue, and Stripe charges payment processing fees. Creators own their intellectual property and mailing list and can export their data. Substack serves writers, journalists, podcasters, video creators, experts, educators, and media companies. It is available on the web, Android, and iOS. Substack directs users to its Help Center and handles subscriber support questions on behalf of writers.