battles / Subscriptions
Stay AI vs Subify
Stay AI ($1,119/mo/mo, vibe code 6/10) vs Subify ($49/mo/mo, vibe code 6/10). Subify is the easier one to rebuild yourself — here is what you lose either way.
Subscriptions
$1,119/mo/mo
- MVP
- 2-3 weeks
- Full replacement
- 3-6 months
Subscriptions
$49/mo/mo
- MVP
- 1 week
- Full replacement
- 3-6 months, driven by theme compatibility edge cases, customer portal UI extensions, and dunning retry logic
easier to rebuild
get the build prompt →price gap / year
$12,840/mo
running both / year
$14,016/mo
our call
Start with Subify — highest vibe code, weakest moat.
Stay AI
You can replace Stay AI's core subscription portal, skip/swap logic, and basic cancellation flows with an AI-generated app in a couple of weeks. However, matching their automated reinforcement-learning save flows, churn prediction models, and zero-touch migration services requires serious custom ML data engineering and ongoing operations.
you can rebuild
- Customizable drag-and-drop customer portal (swap, skip, pause, delay)
- Cancellation survey flows and retention save offers
- Bundles and build-your-own box UI
- Gamified digital punch cards and loyalty milestones
- One-click add-on upsells inside the customer portal
what you lose
- Proprietary reinforcement-learning models for dynamic retention save offers
- Turnkey white-glove migration team to transfer raw contract data from legacy platforms
- Dedicated human subscription growth strategist
- Pre-configured multi-channel integrations (Attentive, Postscript, Gorgias, Rebuy)
- Benchmarked retention analytics compared against industry-wide DTC cohorts
real moats
- Reinforcement learning models trained across hundreds of DTC subscription brands
- High-touch, human-led white-glove migration services and dedicated growth strategists
- Pre-built integrations with e-commerce stack tools (Attentive, Gorgias, Postscript, Klaviyo, Rebuy)
Subify
Shopify handles PCI compliance, payment vaults, and automated recurring billing directly through its Subscription API. Subify is primarily an administrative UI to generate Selling Plans, a theme widget, and a customer management portal.
you can rebuild
- Selling Plan Group creation and product assignment
- Product page subscription options widget
- Customer self-serve portal for skip, pause, and cancel actions
- Product swap and delivery frequency modifications
- Basic dunning notifications for failed billing attempts
what you lose
- Pre-configured Shopify Theme App Extensions for instant theme deployment
- Out-of-the-box email templates for subscription status notifications
- Turnkey customer portal interface without custom CSS design work
- Built-in contract migration tools from competitor apps like Recharge
- Pre-built integrations with third-party apps like Klaviyo and Gorgias
real moats
- Seamless installation across hundreds of edge-case Shopify liquid themes
- Deep ecosystem integrations with marketing and support tools
- Historical churn analytics and retention reporting dashboards
Questions people ask
Which is easier to rebuild with AI, Stay AI or Subify?
Subify. It scores 6/10 on vibe code with a moat of 3/10, so an AI-assisted MVP takes about 1 week and a full replacement about 3-6 months, driven by theme compatibility edge cases, customer portal UI extensions, and dunning retry logic.
Which one costs less, Stay AI or Subify?
Subify at $49/mo/mo for a typical mid-market store. The gap between the two is about $12,840/mo a year.
What do I lose if I replace Stay AI?
Proprietary reinforcement-learning models for dynamic retention save offers Turnkey white-glove migration team to transfer raw contract data from legacy platforms Dedicated human subscription growth strategist
What do I lose if I replace Subify?
Pre-configured Shopify Theme App Extensions for instant theme deployment Out-of-the-box email templates for subscription status notifications Turnkey customer portal interface without custom CSS design work
More battles
One e-commerce SaaS teardown every week.
Honest verdicts, build prompts and overlooked vertical SaaS opportunities. No tracking pixels, no drip sequence, unsubscribe in one click.
free forever · no third-party tracking · the prompts stay public