Justuno and OptinMonster are popup builders for businesses that want to turn site visitors into email subscribers. Built for ecommerce stores on Shopify or BigCommerce, Justuno creates single-use discount codes and product picks for each shopper. OptinMonster is built to run on any website, from blogs to agency client sites. Justuno suits stores that want managed help, while OptinMonster suits publishers, small businesses and agencies.
by Justuno
Pricing: Lite from $59/mo (up to 10,000 visitors); Done-For-You/Flex from $299/mo (up to 20,000); price climbs with traffic; Enterprise is custom above ~3M/mo.
Justuno is a popup and exit-intent tool for email and SMS capture, targeting Shopify shoppers by cart value and behavior to lift conversion rate.
by OptinMonster
Pricing: Basic $7/mo billed annually in year one ($21 month to month), Plus $19, Pro $29, Growth $49; renews at full price (Basic $210/yr). No free plan or trial.
OptinMonster is a popup and lead capture builder for any website, with exit-intent and page targeting, A/B tests and a spin-to-win wheel, priced by impressions.
Popup Builders features side-by-side
Lite from $59/mo (up to 10,000 visitors); Done-For-You/Flex from $299/mo (up to 20,000); price climbs with traffic; Enterprise is custom above ~3M/mo.
Basic $7/mo billed annually in year one ($21 month to month), Plus $19, Pro $29, Growth $49; renews at full price (Basic $210/yr). No free plan or trial.
Choose Justuno if you run a Shopify or BigCommerce store and want a team to manage your popup strategy. Choose OptinMonster if you manage a blog, a small business or client sites on WordPress and similar builders. Both are paid plans billed by the month, and higher plans are sold by quote.
A store owner who wants offers matched to each shopper looks for two things. Justuno generates single-use discount codes per visitor, so each shopper receives a code of their own. It also shows products chosen from what the visitor browsed, right inside a popup. Its vendor can run the strategy work for a store through a dedicated account manager. The interface is crowded, and some features are buried.
A publisher or agency running many sites needs a tool that installs anywhere. OptinMonster installs on any site, either as a script or as a WordPress plugin. It removes the vendor's badge from campaigns, usually from a paid plan up. Sub-accounts and custom branding let an agency manage client sites under its own name. The set of form field types is limited, which narrows what a signup form can ask.
Justuno's users praise how easily popups and onsite offers go live, and they credit them with better conversion and email list growth. They find the interface crowded and unclear about why a popup shows or stays hidden. Some also raise complaints about billing, cancellation and sales promises. OptinMonster's reviewers like the many ready-made templates, the drag-and-drop builder and quick, helpful support. They also report a learning curve, thin analytics and some missing or failing integrations.
Justuno describes an athletic apparel brand that wanted onsite experiences without heavy resources, using targeted opt-ins and exit offers. The brand saw better conversion, higher engagement and more engaged revenue. One OptinMonster customer, a marketing agency that runs social advertising for companies, set out to grow its email list from website visitors for drip campaigns. The share of visitors who became subscribers shot up within one month.
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