The short version
Klaviyo is a leading email and text tool for online shops, with more than 205,000 paying customers, predictive analytics and over 350 integrations. It works on top of a store you already run elsewhere. mDOS sends email and text too, and brings your website, online shop, SEO, Google Business Profile, gift vouchers and loyalty (Beta) into the same system, at one price per site with every feature included. If you sell on Shopify and want the deepest e-commerce analytics, Klaviyo is strong. If you want the whole business in one place, with an AI team (Beta) and our marketing team on live chat, look at mDOS.
How our software compares
This compares our software’s features only. Our AI agents and our partner Marketing Experts come on top, and no single tool here includes them. Every mDOS line is live today unless it says Beta. Every Klaviyo line comes from Klaviyo’s own website; “Not listed” means we couldn’t find it there. Checked on 9 Oct 2026; sources are listed below.
And on top of the software: AI agents that do the legwork, and vetted Marketing Experts running it with you. No single tool compared here includes them.
Where mDOS is stronger
- Fixed pricing: one price per site with every feature included, where Klaviyo prices by active profiles and charges for AI usage.
- SEO, AI search visibility, Google Business Profile and an artwork studio included, none of which Klaviyo lists.
- Your website and online shop in the same system, where Klaviyo connects to a store you run elsewhere and recommends partner page builders.
- A real marketing team on live chat on every plan, and on the Managed plan they run your marketing for you.
- Vetted Marketing Experts on the Managed plan: a Certified Partner Agency (such as Founding Partner Mr Digital) runs your marketing for you, under a retainer contracted and invoiced by that partner.
Where Klaviyo is stronger
- E-commerce predictive analytics built in: predicted next order date, lifetime value, RFM analysis and benchmarks against 100 peer brands.
- Multi-touch attribution across email, text, Meta, Google and TikTok out of the box.
- Klaviyo Portfolio: clone flows, campaigns and forms across linked brand accounts.
- Scale: more than 205,000 paying customers and 350+ integrations.
Sources (21) · checked 9 Oct 2026
- Priced by active profiles on Email or Email and SMS plans, plus usage-based AI (Composer) credits · klaviyo.com
- Free plan: up to 250 profiles and 500 emails a month · klaviyo.com
- Customer Profiles give "a full view of each customer’s behaviour across channels"; positioned as "a CRM built for marketers" · klaviyo.com
- Klaviyo recommends partner page builders such as Unbounce and Shogun for building pages · klaviyo.com
- Hosted landing pages that collect email and phone subscribers · help.klaviyo.com
- A "Social marketing" channel and an Instagram UGC tool that turns social proof into owned audiences · klaviyo.com
- Attribution across Meta, Google and TikTok alongside owned channels, linear multi-touch by default · klaviyo.com
- Campaigns and Flows triggered by customer actions, with AI segmentation · klaviyo.com
- Native SMS, plus RCS and WhatsApp marketing · klaviyo.com
- Web Forms: pop-ups, fly-outs, embedded and multi-step forms · klaviyo.com
- Klaviyo Helpdesk brings email, chat and social support messages into one inbox · help.klaviyo.com
- Review-request flows by email or SMS that work with review apps such as Judge.me and REVIEWS.io · klaviyo.com
- Customer Hub can show loyalty status from a connected loyalty app such as Smile · klaviyo.com
- Klaviyo’s help docs describe working alongside consent tools such as OneTrust and Cookiebot · help.klaviyo.com
- Klaviyo connects to an existing store, such as Shopify, and markets around it · klaviyo.com
- Klaviyo Portfolio links brand accounts, with cloning of flows, campaigns, templates, forms and segments · klaviyo.com
- Klaviyo AI insights, Composer to create flows and campaigns from a prompt, and a Customer Agent · klaviyo.com
- Predicted next order date and lifetime value, RFM analysis and Benchmarks against 100 peer brands · klaviyo.com
- "350+ pre-built integrations" · klaviyo.com
- Paid plans: 24/7 email and 24/5 chat support at the Standard tier · klaviyo.com
- 205,000+ paying customers in 100+ countries · klaviyo.com
Moving from Klaviyo at your own pace
You don’t have to move everything at once. Keep Klaviyo running while we bring your profiles, consent records and order history across, then switch your flows over one by one. We agree a switching plan with you.
More than an email and text tool
Unlike Klaviyo, mDOS isn’t only an email and text tool. You get The Platform, The AI Agents and The Marketing Experts, working as one, at one price per site.
World-leading software
Not just an email and text tool: your website, bookings, customer records, marketing and team tools in one system.
Tireless AI agents
AI agents draft campaigns, review replies and follow-ups for you to approve, and spot problems early. Nothing goes out without your approval.
Real experts driving it
Vetted Marketing Experts, led by our Founding Partner Agency Mr Digital, set the plan and steer the AI. On Managed, we run your marketing and answer for the results.