Postscript vs Sellfy
Features, use cases, pros and cons, and pricing side by side — and which one to pick.
Quick verdict: Pick Postscript if you run a Shopify store and want a dedicated SMS channel; choose Sellfy if you're a creator selling digital products who wants 0% transaction fees.
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: Creators selling digital downloads like ebooks, music, presets, courses, and design packs, Sellers who want subscription revenue with automatic weekly, monthly, or yearly payments
Read the full Sellfy reviewCommission may apply at no extra cost
Postscript vs Sellfy: 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
- You want AI message testing and a reported 34x ROI
- Compliance matters — they have an in-house legal team
Choose Sellfy if
- You sell digital downloads and want 0% transaction fees
- You need big file support, up to 20GB per upload
- You want email and affiliate marketing built in
Postscript vs Sellfy: 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
Sellfy
Sellfy offers flat monthly pricing with 0% platform transaction fees, 20GB file uploads, subscriptions, and built-in email plus affiliate marketing — no code needed. Plans run $22–$119 a month, but yearly sales caps and Business-tier gating on key growth tools are real limits. Overall, it's a solid pick for creators selling digital products without per-sale fees.
Pros
- Charges 0% transaction fees on all plans, so a $10 ebook sale keeps its full price minus only the standard PayPal/Stripe processing fee — the site contrasts this with Gumroad's 10% per-sale cut.
- Supports digital uploads up to 20GB per file on Premium (15GB on Business, 10GB on Starter), enough for full video courses, music packs, and design bundles without external file hosting.
- Bundles email marketing, affiliate programs, SEO, product upselling, and cart abandonment recovery into the dashboard, replacing separate subscriptions to tools like Kit ($0–$1000/mo) or Refersion ($99/mo).
Cons
- Plans are capped by annual sales volume ($10k Starter, $50k Business, $200k Premium); exceeding your cap without upgrading can trigger a 2% overage fee on the excess revenue.
- The 0% transaction fee claim excludes payment processing — PayPal or Stripe still takes roughly 2.9% + 30¢ per sale, and payouts depend on those gateways being available in your country.
- Cart abandonment, affiliate marketing, upselling, custom fields, and removing Sellfy branding are all gated behind the Business plan ($59/mo yearly) or higher, so the entry tier omits key growth tools.
Postscript and Sellfy 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
Sellfy
Sellfy is an online store builder aimed at creators. It handles digital products like ebooks, music, videos, and design files (up to 20GB per file), plus subscriptions and physical goods. Its site cites 75K+ creators who've earned $165M+ through it. If you want one place to sell, take payments, and run simple marketing, it's built for that job.
Standout features
- Keep more of every sale with 0% transaction fees
- Launch a no-code store in minutes
- Sell big files and build recurring income
- Run marketing without stacking extra tools
Use cases
- Sell digital downloads with big files
- Build recurring income with subscriptions
- Mix digital and physical products
- Automate marketing while you create
Pricing compared
List prices from each vendor's pricing page, before taxes and add-ons. Costs are per month.
| Pricing compared | Postscript | Sellfy |
|---|---|---|
| From (cheapest paid plan) | $100/mo Growth | $29/mo Starter |
| 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 | 14 days |
| Money-back guarantee | Not stated | 30 days |
| Annual billing savings | — | Up to 25% |
| Pricing model | Flat price | Flat price |
| Cost for 1 user | FreeCheaper Starter plan, billed annually | $22/mo Starter plan, billed annually |
| Cost for 5 users | $100/mo Growth plan, billed monthly · price per account (user limit not stated) | $29/mo Starter 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) | $29/mo Starter 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) | $29/mo Starter plan, billed monthly · price per account (user limit not stated) |
| Plans | 5 | 3 |
| Prices checked | Checked Oct 13, 2026 | Checked Oct 12, 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 Sellfy at $22/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
Can both tools send SMS marketing campaigns?
No. Postscript is a dedicated SMS platform for Shopify stores. Sellfy is a store builder for creators — it covers email marketing, affiliates, and upselling, but it doesn't offer SMS campaigns.