First subscription app on Shopify powered by Shopify Sidekick AI

The Seal Subscriptions
Alternative for Shopify

Seal does the core subscription job well — and the free plan is generous (up to 150 subscribers). When you outgrow it, SimpleSubscription is the first subscription app on Shopify powered by Shopify Sidekick AI — run your subscriptions from chat: ask, confirm, done in one click. Plus AI churn predictions, built-in A/B testing, AI-driven frequency optimizer, per-currency MRR, custom portal domain, and custom email/SMS providers — features Seal doesn't have at any price.

SimpleSubscription
Free plan·0% fees·Growth $39/mo
Free up to 100 subscribers · 0% fees · Powered by Shopify Sidekick AI.
VS
Seal Subscriptions
Free plan·0% fees·$5.95–$239/mo
Free up to 150 subscribers + 0% fees, but no Sidekick, no AI churn predictions, no A/B testing, no per-currency MRR.
Feature Comparison

SimpleSubscription vs Seal Subscriptions

A detailed side-by-side comparison. See what each app supports — and what's included flat with SimpleSubscription that Seal doesn't offer at any tier.

Feature
SimpleSubscription
Seal
Free plan
up to 100 subscribers
Up to 150 subscribers
Transaction fees
0%
0%
Entry paid plan
Growth $39/mo
~$5.95/mo
Price for full feature set
Premium $99/mo
Up to $239/mo
Free trial on paid plans
14 days
30 days
Powered by Shopify Sidekick AI
Yes
No
AI churn predictions
Yes
No
Built-in A/B testing
Yes
No
Frequency optimizer (AI)
Yes
No
Subscribe & Save
Yes
Yes
Annual subscriptions
Yes
Yes
Subscription bundles (build-a-box)
Yes
Paid tier
Tier Cost Comparison

What Seal tier do you need?

Seal's free plan is generous, but AI features and Sidekick aren't available at any tier. SimpleSubscription includes them flat.

Feature
Seal tier required
Seal cost
SimpleSubscription
Up to 100 active subscribers
Free
$0/mo (up to 150)
$0/mo (Free)
Basic subscriptions + portal
Tier 2
~$5.95/mo
$0/mo (Free)
+ Build-a-box, loyalty, win-back
Tier 3
~$19.95/mo
$39/mo (Growth)
+ Advanced analytics, A/B testing, AI churn, powered by Shopify Sidekick AI (1-click actions from chat)
Not available
Not on Seal at any tier
$99/mo (Premium)

Seal stops at retention basics. To get AI churn predictions, built-in A/B testing, the first subscription app on Shopify powered by Shopify Sidekick AI (1-click subscriber actions from chat), per-currency MRR, and custom portal domain you have to switch — Seal doesn't sell them at any tier.

Sidekick AI

Run subscriptions from a
single chat box

SimpleSubscription brings your subscription data to Sidekick AI, so you can manage anything subscription-related from chat — right inside Shopify admin.

Good afternoon, let's get started.
Try one of these to see how Sidekick handles subscription work
Why It Works

Five storefront moments that grow subscription revenue

Five surfaces, five revenue levers — from subscribe widget to smart cancellation flow.

Storefront

A subscribe widget that buyers actually click

The product page is where one-time buyers turn into subscribers — or don't. The widget surfaces the discount and delivery cadence before the buyer scrolls, then lets them check out with Shopify's native checkout. No off-platform redirect, no second login, no drop-off.

  • Native Shopify checkout — no redirect, no drop-off
  • Discount up front — savings shown before the click
  • Built-in A/B testing — test, measure, ship the winner
Premium Coffee Blend
$29.90
One-time purchase
$29.90
Subscribe & Save
$25.41 Save 15%
Deliver every
1 week -20%1 month -15%3 months -10%
Billing
Per delivery
Annual Save extra 10%
Free shipping on every delivery
Skip or cancel anytime
Subscribe — $25.41/mo
Mystery Box

Turn every renewal into an unboxing moment

Curate a fresh theme each cycle and ship the surprise — your roaster's picks this month, a seasonal sampler next month. Subscribers stay because the next box is always different, and discovery beats discounting on retention. Same widget, same Shopify checkout.

  • Monthly themes — never the same box twice
  • Value-led pricing — "worth $58" vs "$39 today"
  • Lower churn than fixed — discovery beats predictability
MYSTERY
Mystery Box5 items
A surprise selection of premium products delivered to your door every month.
?
?
?
?
?
Deliver every
Week -20%Month -15%6 Months -10%
Billing
Per delivery
Annual Save extra 5%
Free shipping on every box
Skip a month or cancel anytime
$25.41 per delivery
Memberships

Paid memberships that compound MRR

Tier-based memberships sit on top of physical subscriptions: members-only pricing, exclusive products, early access, recurring perks. New revenue stream, same checkout — and members renew at much higher rates than one-time buyers because they're paying for ongoing access, not a single delivery.

  • Tier-based perks — pricing, drops, early access
  • Native Shopify checkout — no payment-page redirect
  • Stacks on physical subs — incremental MRR on top
Most Popular
Gold
$19.90
per month
10% off every order — starts immediately
Free monthly gift (3 rotate)
Cancel anytime
Join Gold
Self-service

A portal subscribers actually use

Every action a subscriber would email you about — skip a delivery, pause, swap a product, change frequency, update payment — is one click in the portal. When pausing is easier than cancelling, churn drops. When subscribers manage themselves, your support inbox shrinks.

  • Skip beats cancel — easier alternatives one click away
  • Magic-link login — no passwords, no support resets
  • 60% fewer tickets — measured across migrated stores
S
SubscriptionsRewardsReferralsGiftsAccount
My Subscriptions
Manage your subscription orders
Premium Coffee Blend
Every monthNext order: 2026-05-15
$39.00
Recommended subscriptions
Customers who buy Premium Coffee Blend also love these
🫘
Espresso Beans
Dark Italian · 250g
$26.00
+ Add
🥛
Oat Milk Creamer
1L carton
$14.00
+ Add
🍫
Hot Cocoa Mix
500g pouch
$18.00
+ Add
Cancellation flow

Save the cancel before it happens

Most cancellations have a fixable reason — too much stock, wrong cadence, wrong product. The retention flow asks why, then offers the right counter — pause, discount, swap, or skip — based on the answer. And for the ones who still slip through, automated win-back campaigns bring lapsed subscribers back to life.

  • Reason-matched offers — pause, discount, or swap by intent
  • AI churn predictions — flag at-risk subs weeks early
  • 35% save rate — measured across active flows
Step 1 of 4
We're sorry to see you go
Help us improve — why are you cancelling?
Too expensive
Don't need it anymore
Switching to another product
Quality not as expected
Continue
Why Switch

Real reasons merchants switch from Seal

1

First subscription app powered by Shopify Sidekick AI

Run your subscriptions from Sidekick chat — ask, confirm, done in one click. Sidekick handles every subscription workflow: ask any subscription question (MRR, churn, at-risk customers, failed payments, win-back performance, strategic insights with ranked actions), run any per-subscriber action through a 1-click confirmation dialog (pause, resume, skip, cancel, reactivate, apply discount, change frequency, change billing date, update address, refund last order, send payment-update link, swap product, and more), and deep-link to any admin editor. Seal doesn't extend Sidekick. Included on every SimpleSubscription plan, even Free.

2

AI churn predictions

SimpleSubscription's churn model scores every active subscriber so you can win them back before they cancel. Seal lacks built-in churn prediction at every tier — you're stuck reading dashboards after the fact.

3

Built-in A/B testing

Split-test your cancel-flow offers, pricing, and retention messages with statistical reporting. Seal has no experimentation tools — every "what should we try?" decision is a guess.

4

Per-currency MRR for Shopify Markets

Selling in EUR, USD, GBP? SimpleSubscription Premium reports MRR per currency rather than silently summing exchange-rate-converted numbers. Seal doesn't have a multi-currency MRR breakdown.

5

Custom portal domain (CNAME)

Host your customer portal on subs.yourdomain.com — SimpleSubscription Premium maps a CNAME and TLS for you. Seal whitelabels portal branding but doesn't support a custom domain.

6

Custom email & SMS providers (BYO)

Use your own SendGrid, Postmark, or Twilio account — your bills, your deliverability, your sender reputation. Seal sends from their shared infrastructure; you can't bring your own provider.

Seamless Migration

Switch from Seal in 4 simple steps

Your subscribers won't notice a thing. Both apps run in parallel until you activate.

Step 1

Connect

Install SimpleSubscription alongside Seal. We read your existing subscription contracts and selling plans automatically.

Step 2

Review

Your subscriptions appear in a staging area. Browse every contract, verify selling plan mappings, and check customer data before anything goes live.

Step 3

Activate

Happy with what you see? One click to activate. Both apps run in parallel during the switch — zero revenue gap.

Step 4

Done

Subscriptions live. AI churn predictions and A/B testing start immediately. Sidekick available from day one.

Zero risk, zero downtime. Seal and SimpleSubscription run simultaneously during migration. Your subscription data is staged privately before anything goes live — cancel with one click if you change your mind.

Pricing

Three plans. Zero transaction fees.

Start free for up to 100 subscribers. 14-day free trial on paid plans. Cancel anytime.

First subscription app powered by Shopify Sidekick AI · Included on every plan
MonthlyAnnual Save 20%
Free
$0/mo
Everything you need to launch and manage subscriptions
  • Subscribe & Save widget
  • Annual subscription billing
  • Self-service customer portal
  • 14 languages supported
  • Passwordless login (magic link)
  • Automatic transactional emails
  • Portal branding (colors & logo)
  • Failed payment recovery
  • Smart cancellation flow
  • Free migration & API/CSV import
  • Shopify Sidekick AI extension
  • 0% transaction fees
  • MRR & revenue analytics
Install free
Most Popular
Growth
$39/mo
Grow recurring revenue with retention, loyalty, and upsells
  • Everything in Free
  • Subscription bundles (build-a-box)
  • Mystery boxes with automated rotation
  • Bulk subscription actions
  • Frequency optimizer
  • Personalized gift subscriptions
  • Free trial subscriptions
  • Checkout & cart upsells
  • Portal add-ons & cross-sell
  • Custom discount & delivery rules
  • Loyalty ladder & rewards points
  • Refer-a-friend program
  • Win-back campaigns
  • Subscription & churn analytics
Start 14-day free trial
Premium
$99/mo
Scale unlimited subscribers with white-label and automation
  • Everything in Growth
  • Tier-based membership program
  • White-labeled customer portal
  • Custom domain on portal
  • Custom email providers
  • Customizable email templates
  • Automatic SMS notifications
  • Custom storefront translations
  • Customer auto-tagging
  • Shopify Flow triggers
  • Built-in A/B testing
  • Smart churn predictions
  • Product performance analytics
  • Per-currency MRR breakdown
  • Advanced forecasts & insights
Start 14-day free trial
FAQ

Common questions about switching from Seal

How does migration from Seal Subscriptions work?

Both apps use Shopify's Subscription Contracts API, so migration preserves all active contracts without subscriber action. Selling plans are recreated in SimpleSubscription to match your existing structure. Active billing dates, pause/skip states, and subscription histories all carry over. The typical migration takes 5–7 business days and runs in parallel with Seal, so there is no downtime.

Both apps have a free plan and 0% transaction fees. What's the real difference?

Seal's free plan is genuinely generous (up to 150 subscribers vs our 50), and Seal does the core subscription job very well — that's the honest baseline. The differentiators are (1) we are the first subscription app on Shopify powered by Shopify Sidekick AI — ask any subscription question, run any per-subscriber action (pause, refund, change frequency from chat in one click), jump to any admin editor — included on every plan; (2) features Seal doesn't have at any price: AI churn predictions, built-in A/B testing, AI-driven frequency optimizer, per-currency MRR breakdown, custom domain on portal, and custom email/SMS providers (BYO SendGrid/Twilio); (3) magic-link passwordless login for subscribers, included on Free.

Seal's free plan covers up to 150 subscribers. Why would I pay $39/mo on Growth?

If you're under 150 subscribers and don't need retention features beyond basic cancellation, stay on Seal — it's a fine free option. You move to SimpleSubscription Growth when you want the retention stack (smart cancel flow with multi-step retention offers, AI-driven frequency optimizer, loyalty ladder, win-back campaigns) consolidated into one app, plus Premium-tier unlocks like AI churn predictions, A/B testing, custom domain, and per-currency MRR that Seal doesn't offer at any tier.

Do I lose features when moving from Seal to SimpleSubscription?

No. SimpleSubscription matches Seal's feature set at equivalent plan levels and adds several that Seal doesn't have at any tier: the first subscription app on Shopify powered by Shopify Sidekick AI (ask any question, run any per-subscriber action in one click, jump to any admin editor), AI churn predictions, built-in A/B testing, AI frequency optimizer, per-currency MRR breakdown, custom portal domain, and custom email/SMS providers.

How long does migration take?

Most Seal migrations complete in 5–7 business days. We create a staging environment so you can review every subscription before it goes live. Seal and SimpleSubscription run simultaneously during the switch — zero revenue gap.

What happens to my Seal selling plans?

Selling plans are recreated in SimpleSubscription to match your existing discount and frequency structure. Mixed-subscription orders (different intervals per item) are preserved. Custom shipping rates configured in Seal are migrated through Shopify's native shipping rules.

Does SimpleSubscription have memberships like Seal?

Yes — tier-based memberships are included on our Premium plan ($99/mo) with progressive perks per tier. Seal includes memberships in their paid tiers too. The differentiator on memberships specifically: SimpleSubscription supports custom portal domain and white-label branding at Premium for membership portals, which Seal doesn't offer.

What about Seal's API and webhooks?

Seal includes REST API and webhook access; SimpleSubscription does too. Both support Klaviyo integration. SimpleSubscription adds native Shopify Flow triggers on Premium so subscription events can drive Shopify automations without custom webhook plumbing.

Is the Sidekick extension included on the Free plan?

Yes. SimpleSubscription is the first subscription app on Shopify powered by Shopify Sidekick AI, and it's included on every plan, including Free. Sidekick handles every subscription workflow — ask any subscription question (MRR, churn, at-risk customers, failed payments, win-back performance, strategic insights with ranked actions), run any per-subscriber action through a 1-click confirmation dialog (pause, resume, skip, cancel, reactivate, apply discount, change frequency, change billing date, update address, refund last order, send payment-update link, swap product, and more), and deep-link to any admin editor. On Premium, data queries get richer: churn predictions, A/B test results, per-currency MRR, and Shopify Flow triggers.

What is the best Seal Subscriptions alternative for Shopify?

SimpleSubscription is a strong Seal Subscriptions alternative for stores that have outgrown Seal's analytics, want AI retention features (churn predictions, A/B testing, frequency optimizer), or need to be powered by Shopify Sidekick AI. Both apps offer 0% transaction fees and free plans. The key differentiators are the Sidekick integration (pause, refund, change frequency from chat in one click), per-currency MRR, custom portal domain, and custom email/SMS providers — features Seal doesn't have at any price.

The AI features Seal doesn't have at any price.

Switch from Seal in under a week. Free migration, zero downtime.

Free for up to 100 subscribers · 14-day trial on paid plans · Cancel anytime