{"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": "2026-10-21T22:13:55Z", "permalink": "https://bikoosh.com/answers/s/sms-marketing-platforms-agencies-2026-10-21", "question_page": "https://bikoosh.com/answers/q/sms-marketing-platforms/agencies", "brands_named": [{"position": 1, "brand": "Klaviyo", "label": "recommended"}, {"position": 2, "brand": "Shopify", "label": "mentioned"}, {"position": 3, "brand": "Postscript", "label": "mentioned"}, {"position": 4, "brand": "Attentive", "label": "mentioned"}, {"position": 5, "brand": "GoHighLevel", "label": "mentioned"}, {"position": 6, "brand": "Twilio", "label": "mentioned"}, {"position": 7, "brand": "SimpleTexting", "label": "mentioned"}, {"position": 8, "brand": "Monday", "label": "mentioned"}, {"position": 9, "brand": "ClickSend", "label": "mentioned"}, {"position": 10, "brand": "UK", "label": "mentioned"}, {"position": 11, "brand": "TextUs", "label": "mentioned"}, {"position": 12, "brand": "SlickText", "label": "mentioned"}], "sources_cited": [{"url": "https://www.arcticleaf.io/blog/learning-center/klaviyo-attentive-postscript", "domain": "arcticleaf.io", "source_type": "other"}, {"url": "https://www.charleagency.com/articles/sms-marketing-app-shopify/", "domain": "charleagency.com", "source_type": "other"}, {"url": "https://ecosire.com/blog/gohighlevel-pricing-worth-it-2026", "domain": "ecosire.com", "source_type": "other"}, {"url": "https://ghlexperts.com/gohighlevel-plans-pricing", "domain": "ghlexperts.com", "source_type": "other"}, {"url": "https://textus.com/blog/white-label-tools-for-agencies", "domain": "textus.com", "source_type": "vendor"}, {"url": "https://www.textmarketer.co.uk/?p=5264", "domain": "textmarketer.co.uk", "source_type": "other"}, {"url": "https://www.smtp2go.com/blog/subaccounts-a-complete-guide-for-agencies-and-resellers/", "domain": "smtp2go.com", "source_type": "other"}, {"url": "https://www.slicktext.com/blog/2025/10/best-sms-marketing-platforms/", "domain": "slicktext.com", "source_type": "vendor"}], "answer_text": "The honest answer depends on which kind of agency you are, because the two use cases barely overlap: managing SMS *inside* client-owned accounts (ecommerce/DTC retainer work) vs. *reselling* texting under your own brand. Here's who I'd actually name, in order.\n\n## If you manage client accounts (ecommerce / DTC retainers)\n\n**1. Klaviyo** - My default recommendation. Email + SMS + customer data in one profile, so you can attribute revenue across channels instead of arguing about it in QBRs. Their agency partner program is the most mature of the three, with tiering, client referral credit, and genuinely good certification. If your clients are on Shopify and you're already doing their email, there's little reason to split SMS out.\n\n**2. Postscript** - Pick this when the client is Shopify-native and SMS-first. Its SMS depth beats Klaviyo's - better subscriber acquisition tools, conversational commerce, compliance handling - and it's cheaper per message, which matters because SMS has real variable cost that eats client budgets. Weaker if you need one system of record across channels.\n\n**3. Attentive** - Where I'd go for mid-market and enterprise clients. The two-tap signup flow is still ", "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"}}