{"question": "best sms marketing platforms for agencies", "category": "sms-marketing-platforms", "category_name": "sms marketing platforms", "audience": "agencies", "audience_name": "agencies", "engine": "Claude (Anthropic) with web search", "model": "claude-opus-5", "asked_at": "2026-10-23T22:56:44Z", "permalink": "https://bikoosh.com/answers/s/sms-marketing-platforms-agencies-2026-10-23", "question_page": "https://bikoosh.com/answers/q/sms-marketing-platforms/agencies", "brands_named": [{"position": 1, "brand": "Klaviyo", "label": "recommended"}, {"position": 2, "brand": "Postscript", "label": "mentioned"}, {"position": 3, "brand": "Shopify", "label": "mentioned"}, {"position": 4, "brand": "Attentive", "label": "mentioned"}, {"position": 5, "brand": "GoHighLevel", "label": "mentioned"}, {"position": 6, "brand": "Twilio", "label": "mentioned"}, {"position": 7, "brand": "Brevo", "label": "mentioned"}, {"position": 8, "brand": "all-in-one", "label": "mentioned"}, {"position": 9, "brand": "SimpleTexting", "label": "mentioned"}, {"position": 10, "brand": "SlickText", "label": "mentioned"}, {"position": 11, "brand": "TextUs", "label": "mentioned"}], "sources_cited": [{"url": "https://info.joinsubtext.com/blog/best-sms-marketing-platform-2026", "domain": "info.joinsubtext.com", "source_type": "other"}, {"url": "https://www.slicktext.com/blog/2025/10/best-sms-marketing-platforms/", "domain": "slicktext.com", "source_type": "vendor"}, {"url": "https://resources.rework.com/tools/messaging-sms/attentive-vs-postscript", "domain": "resources.rework.com", "source_type": "other"}, {"url": "https://postscript.io/partner-resources", "domain": "postscript.io", "source_type": "vendor"}, {"url": "https://www.klaviyo.com/uk/compare/klaviyo-vs-postscript", "domain": "klaviyo.com", "source_type": "vendor"}, {"url": "https://www.nudgify.com/klaviyo-sms-vs-postscript/", "domain": "nudgify.com", "source_type": "other"}, {"url": "https://www.nudgify.com/gohighlevel-vs-klaviyo/", "domain": "nudgify.com", "source_type": "other"}, {"url": "https://burstsms.com/white-label-sms", "domain": "burstsms.com", "source_type": "other"}, {"url": "https://textus.com/blog/white-label-tools-for-agencies", "domain": "textus.com", "source_type": "vendor"}, {"url": "https://www.arcticleaf.io/blog/learning-center/klaviyo-attentive-postscript", "domain": "arcticleaf.io", "source_type": "other"}], "answer_text": "\"Agency\" splits into two pretty different buying situations, and the right answer depends on which one you're in. Here's how I'd rank them.\n\n## If you run SMS for ecommerce/DTC brands (retention agencies)\n\n**1. Klaviyo** - My default first recommendation. Email + SMS in one platform means one subscriber profile, one segmentation engine, and one attribution story to show clients. Most of your clients probably already have it for email, so adding SMS is an upsell rather than a migration. The agency partner program is the most mature in the space (tiering, deal registration, directory listings that actually generate leads). The catch: its SMS is good-not-best, and deliverability tooling is thinner than the SMS-only specialists.\n\n**2. Postscript** - The pick if your clients are Shopify and SMS is the whole point. Built Shopify-first, ~45 segmentation filters, strong two-way conversational selling, and now SMS/MMS/RCS. Self-service pricing means you can stand up a small client without an enterprise contract. Its explicit assumption is that email lives elsewhere (usually Klaviyo), so plan on a two-platform stack. Partner program is open to marketing agencies, dev shops, and app developer", "answer_truncated": true, "measurement": "One answer from one engine on one date. Not a ranking and not a claim about the world; brands the engine did not name are not recorded.", "limitation": "Coverage: Claude (Anthropic) with web search. Other engines not included.", "alerts": {"name": "Answer Watch Pro", "price_usd": 79, "period": "month", "gets": "daily change alerts for up to 5 brands in what one AI answer engine says, history, CSV export. Coverage: Claude (Anthropic) with web search. Other engines not included", "url": "https://bikoosh.com/answers"}}