Claspo

1. 1

   You install a single JavaScript snippet, either pasted into the site template, deployed through Google Tag Manager, or added through the WordPress, Shopify, Wix, or WooCommerce integration. From that point every load of a page carrying the script counts against your monthly pageview allowance, which is the number your plan is priced on.

2. 2

   Widgets are built in a drag-and-drop editor, usually by starting from one of the templates and editing rather than from a blank canvas. You choose a layout (popup, floating box, floating bar, embedded block, fullscreen, or teaser), assemble the content from typed components such as email inputs, phone inputs, date pickers, rating and NPS scales, consent checkboxes, countdown timers, promo code blocks, and buttons, then let the automatic design matching apply the host site's colors rather than picking them by hand.

3. 3

   Display rules decide who sees it. Triggers cover time on page, time on site, scroll depth, pages viewed per session, inactivity, and exit intent. Audience conditions cover new versus returning visitors, geography, device, UTM parameters and traffic source, URL include and exclude patterns, cookies, browser storage, custom JavaScript events, and custom variables you pass in. Frequency caps and a silence interval between widgets stop a visitor from being hit repeatedly, which is the failure mode that gets a popup tool uninstalled.

4. 4

   Submissions land in a Leads section with filtering and export, trigger an email notification if you want one, and are mapped field by field into the connected email or CRM platform. Hidden fields let you attach context such as the campaign or the page a lead came from without asking the visitor for it. Analytics report unique views, target actions, conversion rate, device breakdown, top converting widgets, and, for gamified widgets, how prizes were actually distributed. A/B tests run on autopilot: variants rotate, a confidence score accumulates, and the leader keeps serving.

Usage-based subscription metered on monthly pageviews, counted on every load of a page carrying the Claspo script whether or not a widget displays. Features are not gated by tier: the free plan includes the targeting engine, gamification, A/B testing, and integrations. Paid Pro tiers buy higher pageview allowances, remove the Claspo badge, add more websites, and add priority support. Widgets and team seats are unlimited on every plan.

Value assessment: On capability per dollar Claspo is one of the strongest offers in onsite capture, precisely because it refuses the usual feature-gating. Exit intent, A/B testing, geo and UTM targeting, and eight gamified formats at zero dollars is more than most competitors give away at their entry paid tier. The catch is the meter. Pageview-based pricing charges you for traffic that never sees a widget, which makes Claspo cheap for a small store and less obviously cheap for a content site with heavy traffic and modest capture ambitions. Compare on your actual pageview count rather than on the entry price, and if most of your traffic is on pages you would never show a widget on, scope the script accordingly before you compare quotes.

Setup time

Under an hour to a live widget. The script goes in via a template edit, Google Tag Manager, or the WordPress, Shopify, Wix, or WooCommerce integration; the first widget usually comes from a template with the design matching applied automatically.

Learning curve

Low for the builder, moderate for targeting. Assembling a widget from components is straightforward. The part that takes practice is display logic: combining triggers with audience conditions, setting frequency caps, and using the silence interval so a visitor is not hit by three campaigns in one session.

Onboarding

Fully self-serve. There is a help center, template-led setup, and standard support on the free plan with priority support on paid tiers; enterprise and agency terms add a dedicated customer success contact.

Migration notes

Migrating from another popup tool means rebuilding widgets, since no capture vendor exports designs in a portable format. Export existing subscribers from the old tool first, and note that historical conversion data does not carry over. Run both scripts briefly only if you set frequency rules to prevent double-serving, then remove the old one, because two capture scripts on the same page is both a performance cost and a visitor-experience problem.

Platforms

Web (JavaScript snippet)Google Tag ManagerWordPressShopifyWooCommerceWixMobile web (responsive widgets)

API

Webhooks for pushing submissions to arbitrary endpoints, a JavaScript layer for custom events and custom variables used in targeting, merge tags reading from the page data layer, and a component SDK on enterprise terms for building bespoke widget components.

Compliance

GDPRCCPA

Data residency

Not publicly documented; ask the vendor if data location is a contractual requirement.

SSO

Not advertised on standard plans; raise it under enterprise terms if required.

Security notes

Consent checkbox components and configurable opt-in wording support GDPR-facing list building, and a custom script domain is available on paid plans. Claspo does not publish SOC 2 or ISO 27001 attestations, so a buyer with a formal security review should plan for a questionnaire rather than a certificate.

Channels

Email supportIn-app chatHelp center and video guidesPriority support on paid plans

Documentation

A practical help center covering install, targeting rules, integrations, and pageview accounting, supported by a blog that functions as reasonably substantive category education on onsite conversion rather than pure marketing.

Community

No large independent user community; the useful reference material is the vendor's own documentation and blog, plus reviews on G2, Capterra, and the Shopify app listing.

Founded

2021

Headquarters

Ukraine

Ownership

Independent, founder-owned

Founders

Nikita Korchevskyi, Dmytro Kudrenko

Employees

~30 (est. 2026)

Funding

Bootstrapped; no disclosed venture funding.

Claspo is the clearest example in onsite capture of charging for volume instead of features, and for a small business that is the right way round. Exit intent, automated A/B testing, geo and UTM targeting, and eight gamified mechanics on a permanent free plan is more than most competitors offer at their first paid step, and the builder produces something that looks like it belongs on the site without design help. The constraint to understand before you commit is the meter: it counts every pageview on any page carrying the script, so a content-heavy site pays for reach it never converts, and passing the ceiling stops widget display quietly rather than billing you. The gaps that matter for larger buyers are real too, thin permission controls, no published security attestations, and a thirty-person bootstrapped team behind it. Judged as what it is, the best free-to-start capture tool a one-domain store or solo marketer can install this afternoon, it is hard to beat.

Written by the SaaSTracker editorial team. Awards, when shown, are judged against the published criteria in our methodology.