{
 "schema_version": "1.0",
 "id": "postscript",
 "name": "Postscript",
 "research_status": "researched",
 "vendor_domain": "postscript.io",
 "category": "SEO & Marketing",
 "task": "E-commerce growth",
 "summary": "SMS marketing for Shopify stores: campaigns, automations and opt-in tools.",
 "best_for": "Shopify stores with a list large enough that SMS beats email on response — the per-message economics only work once volume justifies the platform fee",
 "skip_if": "you are testing whether SMS works for you at all — the $49 minimum spend on the free tier means the experiment has a floor before you have sent a single message, and the listed rates cover the US and Canada only",
 "honest_knock": "The $0 a month is not free — it carries a $49 monthly minimum spend, which means $49 is your floor whether you send anything or not. Read the tiers as what they are: a platform fee plus a per-message rate plus carrier fees. That third line is easy to miss because it sits in a footnote rather than on the tier cards, and it is not small: the page puts the average US carrier fee at $0.00418 an SMS and $0.00841 an MMS, so against the $0.009 volume rate on Starter it adds close to half again. Before you compare this with anything, work out your monthly message volume and multiply it out on all three published tiers: Growth costs $100 more than Starter but saves a fifth of a cent per message, so it pays back somewhere around 50,000 messages a month.",
 "pricing": {
  "status": "public",
  "entry_price": "$49",
  "entry_price_terms": "per month minimum spend",
  "from_price_usd_month": 49.0,
  "plans": [
   {
    "name": "Starter",
    "price": "$0 a month with a $49 monthly minimum spend, $0.015 then $0.009 per SMS and $0.045 per MMS",
    "includes": "plus carrier fees"
   },
   {
    "name": "Growth",
    "price": "$100 a month, $0.01 then $0.008 per SMS and $0.03 per MMS",
    "includes": ""
   },
   {
    "name": "Professional",
    "price": "$500 a month, $0.007 per SMS and $0.024 per MMS",
    "includes": ""
   },
   {
    "name": "Enterprise",
    "price": "contact-sales",
    "includes": ""
   }
  ],
  "plans_source": "summarised from pricing.notes; every plan name and amount appears verbatim in those notes",
  "notes": "(Re-verified 19 September 2026 on their own pricing page; every figure below is unchanged from the 30 August reading.) Starter is shown as $0 a month with a $49 monthly minimum spend, at $0.015 then $0.009 per SMS and $0.045 per MMS, plus carrier fees. Growth is $100 a month at $0.01 then $0.008 per SMS and $0.03 per MMS. Professional is $500 a month at $0.007 per SMS and $0.024 per MMS. Enterprise is contact-sales. Carrier fees are asterisked on every tier and are quantified in the footnote below the feature list: average US carrier fees of $0.00418 per SMS and $0.00841 per MMS, with the listed rates covering the US 50 states and Canada only. The free trial is a credit equal to $100 against message and carrier fees during your first 30 days; exhaust it and you are billed at the Free package rate unless you select another package. Phone numbers are priced outside the tiers: a dedicated toll-free number is assigned and verified free of charge at install, while a dedicated short code costs $750 a month levied by the carriers and passed on without markup. No contract is required.",
  "verified_at": "2026-09-19",
  "source_url": null,
  "schema_offer": null,
  "source_quotes": null,
  "recent_change": null,
  "price_history": null
 },
 "free_plan": true,
 "free_plan_evidence": "(Re-verified 19 September 2026 on their own pricing page; every figure below is unchanged from the 30 August reading.) Starter is shown as $0 a month with a $49 monthly minimum spend, at $0.015 then $0.009 per SMS and $0.045 per MMS, plus carrier fees.",
 "cost_traps": [
  {
   "id": "usage_metered",
   "label": "Usage-metered",
   "evidence": "Read the tiers as what they are: a platform fee plus a per-message rate plus carrier fees.",
   "verified_at": "2026-09-19",
   "source_url": null
  }
 ],
 "compare_with": {
  "name": "Attentive or Klaviyo SMS",
  "why": "the direct SMS peers for ecommerce — compare total cost at your real monthly send volume, including carrier fees, not the platform fee"
 },
 "links": {
  "record": "https://aibuildermarketplace.com/api/v1/products/postscript.json",
  "review": "https://aibuildermarketplace.com/b2b/postscript-review/",
  "marketplace": "https://aibuildermarketplace.com/marketplace/postscript/",
  "vendor_site": "https://postscript.io"
 },
 "purchase": {
  "seller": "the vendor",
  "how": "AIBuilder Marketplace does not sell this software. Sign up, start a trial or buy on the vendor's site.",
  "handoff_url": "https://postscript.partnerlinks.io/wle2bu9y77jv",
  "affiliate": false,
  "disclosure": "Where purchase.affiliate is true, purchase.handoff_url is an affiliate link: AIBuilder Marketplace may earn a commission at no extra cost to the buyer. Commission never changes what a record says, and products are not ranked by commission. Where it is false the link is the vendor's plain site."
 },
 "provenance": {
  "research": "hand-researched dossier, read on the vendor's own pages",
  "researched_since": "2026-07",
  "method": "https://aibuildermarketplace.com/how-we-review/",
  "license": "CC BY 4.0. Credit 'AIBuilder Marketplace' with a link to https://aibuildermarketplace.com/atlas/.",
  "note": "A rebuild is not a new measurement: pricing.verified_at is the date that matters."
 },
 "cost": {
  "status": "not_yet",
  "engine": "https://aibuildermarketplace.com/agents/#cost",
  "rules": null,
  "growth": null
 },
 "unknowns": [
  "Contract terms (cancellation, data export, data location, minimum seats) are not researched as separate fields; pricing.notes mentions them only where the vendor's pricing page does.",
  "Being verified: free trial and refund terms are not yet matched to a verbatim line on the vendor's own pages. Not matched does not mean there is none.",
  "No computable price rules yet: cost at a given team size cannot be calculated for this product.",
  "Not tested hands-on by us: what the product does comes from the vendor's pages and our reading of them."
 ],
 "verification": {
  "price": "read",
  "free_trial": "being_verified",
  "refund": "being_verified"
 },
 "status_page": null,
 "task_evidence": null,
 "open_questions": [
  {
   "question_id": "postscript:cancellation_terms",
   "key": "cancellation_terms",
   "question": "Can a customer cancel at any time, and what happens to an annual plan that is cancelled mid-term?",
   "status": "open"
  },
  {
   "question_id": "postscript:data_export",
   "key": "data_export",
   "question": "Which data can a customer export, in which formats, on which plans?",
   "status": "open"
  },
  {
   "question_id": "postscript:data_location",
   "key": "data_location",
   "question": "Where is customer data stored, and can a customer choose the region?",
   "status": "open"
  },
  {
   "question_id": "postscript:minimum_seats",
   "key": "minimum_seats",
   "question": "Is there a minimum number of seats or users on any plan?",
   "status": "open"
  }
 ],
 "vendor_answers": [],
 "agent_channels": {
  "vendor_mcp": null,
  "agent_checkout": {
   "status": "not_found",
   "detail": "No explicit support for purchases by AI agents on the vendor's own pages.",
   "checked_at": "2026-10-07",
   "method": "homepage, /pricing and the pricing page we cite, read as plain HTML (no JavaScript) and searched for explicit support of purchases by AI agents: Agentic Commerce Protocol, Instant Checkout, Agent Payments Protocol, buy in ChatGPT, agentic checkout"
  }
 }
}