# What Claude (Anthropic) with web search answered for sms marketing platforms (agencies) on 2026-09-12

## In short

On 2026-09-12, Claude (Anthropic) with web search was asked "best sms marketing platforms for agencies". It named 12 brands, in this order: Klaviyo, Shopify, you're, Attentive, Postscript, GoHighLevel.

| Fact | Value |
| --- | --- |
| Question | best sms marketing platforms for agencies |
| Asked on | 2026-09-12 |
| Engine | Claude (Anthropic) with web search |
| Model | claude-opus-5 |
| Brands named | 12 |
| Sources cited | 8 |
| Audience | agencies |
| Coverage | Coverage: Claude (Anthropic) with web search. Other engines not included. |
| Last verified | 2026-09-12 |

Page: https://bikoosh.com/answers/s/sms-marketing-platforms-agencies-2026-09-12
Coverage: Claude (Anthropic) with web search. Other engines not included.

## The answer, as recorded

Asked on 2026-09-12 through Claude (Anthropic) with web search (model claude-opus-5).

> Depends on what your clients look like, but here's the ordered list I'd actually give:
> 
> **1. Klaviyo** - My default recommendation for agencies with ecommerce/DTC clients. Email + SMS in one platform with the deepest attribution and native Shopify integration, so you're not reconciling two tools' revenue numbers in client reports. The partner program is mature and clients often already have it for email. Roughly $3K-$7K/mo at 100K subscribers. ([Klaviyo](https://www.klaviyo.com/blog/best-sms-marketing-platforms), [appstoreresearch](https://appstoreresearch.com/blog/klaviyo-vs-attentive-vs-postscript))
> 
> **2. Attentive** - Where I'd go when SMS is the primary channel and the client is big enough to justify it. Category leader tooling, strong Shopify Plus integration, real managed support. Most expensive of the three (~$8K-$15K/mo at 100K subs, with 20-40% enterprise discounts), so it only makes sense on larger accounts. ([Arctic Leaf](https://www.arcticleaf.com/blog/learning-center/klaviyo-attentive-postscript/))
> 
> **3. Postscript** - The middle option: Shopify-native SMS specialist, more aggressive pricing than Attentive, good abandoned-cart flows. Its Klaviyo integration means you c

## Brands named, in the order the engine gave

| Position | Brand | How it was named |
|---|---|---|
| 1 | Klaviyo | recommended |
| 2 | Shopify | mentioned |
| 3 | you're | mentioned |
| 4 | Attentive | mentioned |
| 5 | Postscript | mentioned |
| 6 | GoHighLevel | mentioned |
| 7 | Salesmsg | mentioned |
| 8 | HubSpot | mentioned |
| 9 | ActiveCampaign | mentioned |
| 10 | SlickText | mentioned |
| 11 | SimpleTexting | mentioned |
| 12 | Twilio | mentioned |

## Sources the engine cited

- https://www.klaviyo.com/blog/best-sms-marketing-platforms (vendor)
- https://appstoreresearch.com/blog/klaviyo-vs-attentive-vs-postscript (other)
- https://www.arcticleaf.com/blog/learning-center/klaviyo-attentive-postscript/ (other)
- https://www.ringly.io/blog/postscript-alternatives (other)
- https://www.perspective.co/article/white-label-marketing-software (other)
- https://www.salesmessage.com/blog/best-sms-marketing-software (other)
- https://www.slicktext.com/blog/2025/10/best-sms-marketing-platforms/ (vendor)
- https://signalhouse.io/guides/best-twilio-alternatives-2026/ (other)

The question page: https://bikoosh.com/answers/q/sms-marketing-platforms/agencies

Answer Watch records what one AI answer engine said on one date, nothing more. Each page names the engine and the model, carries the date the question was asked, and lists the brands that appeared in the answer in the order the engine gave them, with the sources it cited. It is a measurement, not a ranking, not a recommendation and not a claim about the world. Brands that did not appear in an answer are not named on any public page. Coverage: Claude (Anthropic) with web search. Other engines not included.