Postscript vs TrueLoyal (formerly Zinrelo)
A side-by-side comparison for e-commerce sellers — platforms, pricing, free trials and ROI.
Loyalty for brands that sell online and on shelf: rewards, receipt scanning, referrals, reviews and UGC
| Category | Email & SMS | Email & SMS |
|---|---|---|
| Platforms | Shopify DTC | Shopify Amazon DTC |
| Pricing | Free trial; usage-based, paid plans from $100/mo | — |
| Free trial | Yes | No |
| Affiliate program | Direct | — |
| ROI | Turns SMS into a measurable revenue channel, with top brands earning a strong multiple on every dollar of texting spend. | Reward customers who buy you on Amazon or in stores, not just on your own site. |
Which should you choose?
Shopify and Shopify Plus DTC brands that want SMS as a dedicated, high-converting revenue channel.
CPG and retail brands that sell on Amazon and in stores as well as DTC.
Postscript
Pros
- Deeply integrated with Shopify and Shopify Plus data
- Strong compliance and deliverability for US texting
- Conversational selling features drive measurable replies and revenue
Cons
- Shopify-only, so not an option for WooCommerce or Amazon sellers
- Usage-based pricing plus message costs add up at scale
- SMS-focused, so you still need a separate email tool
TrueLoyal (formerly Zinrelo)
Pros
- Rewards purchases made off your website
- Built for omnichannel CPG brands
- Rich data layer
Cons
- Enterprise pricing via demo
- More than a small Shopify store needs
- Rebrand from Zinrelo may confuse reviews
Other tools to consider
Email & SMS marketing built on unified customer data for ecommerce
Collect, manage, and display product reviews and UGC for ecommerce
AI marketing copilot for product descriptions and brand-voice copy at scale
AI-driven ecommerce personalization and product recommendations for Shopify brands
Easy, low-cost mass SMS marketing with automation and keywords
Influencer, affiliate and referral programs that turn customers and creators into a sales channel