Postscript vs Subbly
Features, use cases, pros and cons, and pricing side by side — and which one to pick.
Quick verdict: Pick Postscript if you're a Shopify store making SMS a revenue channel; pick Subbly if you run subscription boxes, meal kits, or memberships.
Best for: Established Shopify stores (typically $500k+ annual revenue) that want to make SMS a primary revenue channel and can justify a $100–$500/month platform fee plus per-message costs, DTC brands that need deep SMS-specific expertise and strategic guidance rather than a generic multi-channel tool, and who value Postscript's dedicated team support
Read the full Postscript reviewBest for: Subscription box startups and established box brands, Meal kit and prepared-meal delivery services
Read the full Subbly reviewCommission may apply at no extra cost
Postscript vs Subbly: features compared
Compare key features side by side
Feature Comparison Summary
Which should you choose?
Choose Postscript if
- Your store runs on Shopify and SMS is a priority revenue channel.
- You want AI-optimized messaging plus strong TCPA compliance built in.
- You need SMS-specific strategy support and high reported ROI.
Choose Subbly if
- You sell subscriptions: boxes, meal kits, or memberships.
- You want website, checkout, and billing in one platform.
- You're migrating from Recharge, Cratejoy, or a Shopify plugin stack.
Postscript vs Subbly: pros and cons
Postscript
Shopify's SMS specialist for serious ROI.
We found Postscript to be a powerful, dedicated SMS marketing tool built exclusively for Shopify. Its focus on compliance, AI-driven optimization, and strategic support makes it a top choice for brands ready to invest in a high-return channel. Overall, it's an excellent, niche solution for Shopify merchants prioritizing SMS revenue growth.
Pros
- Deep SMS-only expertise and strategic support
- High reported average ROI (34x)
- Powerful AI for message optimization (Infinity Testing)
Cons
- Only works with Shopify stores (no other platforms)
- Specialized pricing may not suit very tight budgets
- Not an all-in-one marketing suite; requires other tools for channels beyond SMS
Subbly
Subbly bundles your website, checkout, billing, and subscriber management into one subscription-first platform, with a churn suite, dynamic bundles, and free migration built in. The trade-offs are real: pricing isn't shown upfront, trial offers are advertised inconsistently, and monthly plans carry a 30-day commitment. Overall, it's a strong shortlist pick if subscriptions are your whole business.
Pros
- Genuinely all-in-one — website, checkout, recurring billing, and subscriber management live in a single system, eliminating the plugin conflicts and stacked app costs typical of running subscriptions on Shopify or WooCommerce.
- Churn reduction is engineered in, not bolted on — the platform ships a churn suite with AI prediction models, downsells via funnels, surveys for preference capture, and subscription-native gifting.
- Bundles support genuinely complex pricing, dynamically adjusting across 10+ parameters, which suits meal kits and other products where price varies by portion, frequency, or contents.
Cons
- Monthly plans carry a 30-day minimum commitment after the trial, so it's not fully month-to-month cancellation flexibility.
- Costs can scale with usage — some tiers apply overages such as $5 per 1,000 extra automation actions, and seat limits are tight on lower plans (1 seat on Basic, 3 on Subbly, 5 on Advanced).
- The AI website builder is a separate paid add-on rather than a standard feature, despite being promoted heavily in marketing.
Postscript and Subbly in detail
Postscript
✨ Postscript is a dedicated SMS marketing platform built specifically for Shopify stores. It's for ecommerce brands that want to move beyond generic blasts and build a profitable, conversational channel with their customers.
The service combines specialized software with a strategic team of SMS experts. Their goal is to transform your list into a reliable, high-ROI revenue stream through compliant and effective messaging.
Standout features
- Turn SMS Into Your Top Revenue Channel
- Grow Your List 3x Faster
- Send Smarter Messages with AI-Powered Optimization
- Have Real Conversations That Drive Sales
Use cases
- Launching a New Product Collection
- Abandoned Cart Recovery That Feels Human
- Growing a Compliant Subscriber List
- Moving from Basic Blasts to High-Performing Campaigns
Subbly
Subbly is a subscription-first commerce platform: one system for your website, checkout, billing, and subscriber management. It targets recurring-revenue businesses such as subscription boxes, meal delivery, memberships, D2C replenishment, and CSA farms. The company reports 20,000+ users, 11+ years in market, and a 4.8/5 rating from 200+ Capterra reviews. Migration paths are advertised from Shopify, WooCommerce, Recharge, Cratejoy, and others.
Standout features
- One platform, no plugin pile-up
- Tools that grow order value
- A churn suite that keeps subscribers around
- Build it your way, or hand it over
- Easy to switch, easy to get help
Use cases
- Subscription box brands replacing a plugin stack
- Businesses migrating off Recharge, Cratejoy, or Shopify
- Memberships, D2C replenishment, and subscribe-and-save models
- CSA farms selling seasonal shares
Pricing compared
List prices from each vendor's pricing page, before taxes and add-ons. Costs are per month.
| Pricing compared | Postscript | Subbly |
|---|---|---|
| From (cheapest paid plan) | $100/mo Growth | $69/mo Subbly |
| Free plan | Yes $49 monthly minimum spend; $0.009/SMS, $0.045/MMS plus carrier fees; for brands getting started with SMS; includes campaigns and automations, unlimited segments, dedicated toll-free number, subscriber acquisition tools with 2 opt-in keywords, branded short link subdomain. | No |
| Free trial | Not stated | Not stated |
| Money-back guarantee | Not stated | Not stated |
| Annual billing savings | — | Up to 25% |
| Pricing model | Flat price | Flat price |
| Cost for 1 user | FreeCheaper Starter plan, billed annually | $51.75/mo Subbly plan, billed annually |
| Cost for 5 users | $100/mo Growth plan, billed monthly · price per account (user limit not stated) | $69/mo Subbly plan, billed monthly · price per account (user limit not stated) |
| Cost for 10 users | $100/mo Growth plan, billed monthly · price per account (user limit not stated) | $69/mo Subbly plan, billed monthly · price per account (user limit not stated) |
| Cost for 25 users | $100/mo Growth plan, billed monthly · price per account (user limit not stated) | $69/mo Subbly plan, billed monthly · price per account (user limit not stated) |
| Plans | 5 | 3 |
| Prices checked | Checked Oct 13, 2026 | Checked Oct 13, 2026 |
| Price history | Tracking prices since Oct 1, 2026. No price change detected yet. | Tracking prices since Oct 1, 2026. No price change detected yet. |
- Cheapest plan that fits each team size. Per-user plans are multiplied by the number of users (respecting stated minimums and seat packs). Plans that include some users cost their base price plus the extra-user price for each user beyond those included. Flat-priced plans with no stated user limit are counted as one licence per user.
Cheaper for your team size
For 1 user (billed annually), Postscript costs $0/mo vs Subbly at $51.75/mo.
- Only Postscript has a free plan.
Computed from published list prices on the dates shown. Excludes taxes, add-ons and promotions.
More comparisons
Frequently Asked Questions
What's the biggest limitation of each?
Postscript only works with Shopify stores. Subbly is built for recurring revenue, so one-time product stores may find it's more tooling than they actually need.