Nosto vs Constructor
Nosto and Constructor both sell to retailers and neither prints a price, so the real question is what you get before you talk to sales. Nosto is a suite of recommendations, upsell, bundles, emails, search and A/B testing, with a structured proof of concept for qualified merchants. Constructor offers a complimentary Search Experience Audit and presents an AI-driven platform with shopping agents, and its pricing address returns a page-not-found message. Nosto states no country, while Constructor.io, Inc. is a United States company.
Sebastiaan SmitsFounderVendors can pay for more visibility on this website, for example a higher place in a ranking or more room on a page. Commercial relationships can also affect which products we feature and how prominently. Every vendor link is marked the same, whatever the arrangement behind it. How that works.
Choose Nosto ifyou run a mid-sized or large shop and want search, bundles, upsell and email from one vendor, with a vendor-run pilot first. You can accept that a headquarters country stays unstated in the material we read.
Choose Constructor ifyou have a large catalogue and a merchandising team, and you want an audit of your current search before any commercial talk. You are comfortable with a United States vendor and a price known only after a demo.
Nosto and Constructor side by side
| Nosto | Constructor | |
|---|---|---|
| Our product recommendation engines rank | #12 of 14 | #13 of 14 |
| Established in | Not stated by the vendor | United States |
| List price, 8 November 2026 | Custom quote driven by turnover, traffic, modules and support level; proof of concept for qualified merchants | Nothing published; the pricing URL gives Page Not Found and a free search audit is the entry offer |
| Free tier | — | — |
| Open source | — | — |
| Self-hostable | — | — |
| Built for | Mid-to-large retailers wanting a broad suite and a vendor-run pilot | Retailers with large catalogues and a merchandising team wanting behaviour-driven ranking |
| Not for | Small shops needing self-service sign-up and a published price | Publishers or software firms searching articles and documentation |
Both are reviewed in full in our product recommendation engines ranking: Nosto and Constructor.
Where they differ
Nosto 2 · Constructor 2 · open 2- 01
A pilot versus an audit
Nosto says it offers no standard self-service free trial, but a structured Proof of Concept for qualified merchants, which means smaller shops may be screened out. Constructor's homepage offers a complimentary Search Experience Audit with no strings attached, which tests your current search rather than its own product. Neither route is self-service. Nosto's pilot is closer to trying the product on your data, while Constructor's audit is a lighter first step.
Depends on the buyer
- 02
Where the modules stop
Nosto's product menu lists Product Recommendations, Post-Purchase Upsell, Dynamic Bundles, Personalized Emails, Commerce Search and A/B Testing. Constructor's pages group onsite experiences such as search, browse and recommendations, offsite channels like email and SMS, and insight tools including a merchant intelligence agent and merchandiser controls with experiments. Both cover search, recommendations and email. Constructor adds shopping agents that answer product questions, while Nosto names bundles and post-purchase upsell as separate modules.
Depends on the buyer
- 03
How the quote is built
Nosto's pricing page says there are no rigid tiers and no one-size-fits-all plans. The price depends on business volume (turnover and traffic), the modules chosen, and the level of support and scalability required. That is stated openly, even without a number. Constructor shows no pricing basis at all: constructor.com/pricing returns Page Not Found and no published prices were found. Nosto at least tells you what moves the bill.
Edge: Nosto
- 04
Guarantees on uptime
Nosto's Product Scalability package carries a 99.99 percent uptime SLA, with dedicated infrastructure and priority processing. That is a concrete commitment you can put in a contract conversation. Constructor's site shows no uptime figure or a service level, so a buyer would have to ask for one during the demo. A stated number is a small advantage, but it is a verifiable one, and only Nosto gives it.
Edge: Nosto
- 05
A vendor built only for retail
Constructor's own pages cover B2C, B2B, fashion, grocery, furniture and department store use, and it says the platform is built for retailers. Its Commerce Reasoning Engine sits behind products such as the AI Shopping Agent and Product Insights Agent. A site without a product catalogue has little use for it. Nosto's menu is also commerce-focused, but we found no industry pages in the same detail, so Constructor reads as the more specialised retail fit.
Edge: Constructor
- 06
Company address and footprint
Constructor's terms name Constructor.io, Inc., with a copyright agent at 600 California St in San Francisco, and the about page says it was founded in 2015 by Eli Finkelshteyn and Dan McCormick. Nosto's company page lists offices in London, Paris, New York, Stockholm, Salzburg, Sydney, Helsinki and Berlin and over 140 team members, but none of the vendor pages states a headquarters country. Constructor is the clearer one on where it is based.
Edge: Constructor
When neither fits
If you want a published price or a self-service sign-up, neither fits, because both are sales-led. Recombee and Tweakwise are two other tools in our recommendation engine list to check against them.
Nosto or Constructor: questions
3 answersCan a small shop get a trial of Nosto?
Not in the usual self-service sense. The pricing page says there is no standard free trial, only a structured Proof of Concept for qualified merchants. A small store may therefore be screened out before seeing the product.
Does Constructor publish any prices?
No. constructor.com/pricing returned a Page Not Found message when we read it, and no published prices were found. The homepage offers a complimentary Search Experience Audit as the first step instead.
Which vendor names its home country?
Constructor does, through terms that name Constructor.io, Inc. with an address in San Francisco. Nosto lists eight offices and over 140 team members but states no headquarters country on its site. The country field for Nosto is therefore left as not stated.
Sources
Checked 8 November 2026- Nosto pricing page: custom quote basis, no self-service trial, proof of concept and the 99.99 percent uptime SLA.
- Nosto company page: the eight office cities and over 140 team members, with no headquarters country.
- Nosto homepage: the product menu of recommendations, upsell, bundles, emails, search and A/B testing.
- Constructor pricing address: the Page Not Found result and absence of published prices.
- Constructor homepage: the complimentary Search Experience Audit and the Commerce Reasoning Engine with shopping agents.
- Constructor terms of service: Constructor.io, Inc. and the San Francisco copyright agent address.
- Constructor about page: founding in 2015 by Eli Finkelshteyn and Dan McCormick.